When it comes to enjoying your swimming pool, knowing the water temperature is crucial. Whether it’s for safety, comfort, or ensuring optimal swimming conditions, investing in one of the best pool thermometers available on Amazon can enhance your experience. Pool thermometers come in various designs and functionalities, offering the ability to monitor water temperatures quickly and accurately. In 2025, the market offers an array of options, so we have done the research for you to identify the top 10 best pool thermometers.

1. AquaVogue Digital Floating Pool Thermometer

No products found.

The AquaVogue Digital Floating Pool Thermometer is incredibly user-friendly and provides an accurate reading of your pool’s temperature. Designed to float on the water’s surface, this thermometer features a large digital display that’s easy to read from a distance. With its durable construction, it’s both waterproof and resistant to pool chemicals.

Best for: Accurate temperature readings with a digital display

Pros:

• Large digital display for easy reading
• Durable and chemical-resistant
• Simple float design

Cons:

• Batteries need replacement after some time
• May drift away in windy conditions

2. Taylor 9850 Pool and Spa Thermometer

−$7.65

View price

• Genuine OEM replacement part
• Taylor manufactures a full range of thermometers, scales and related measurement devices
• Use genuine OEM parts for safety reliability and performance

View price

The Taylor 9850 is a versatile pool thermometer that can also be used in spas. It has a glass buoy design and features an easy-to-read scale that provides both Celsius and Fahrenheit readings. Being designed for both indoor and outdoor use, this thermometer is perfect for monitoring temperatures in any environment.

Best for: Versatile use in pools and spas

Pros:

• Easy-to-read dual scale
• Suitable for pools and spas
• Durable glass construction

Cons:

• Not digital, some users prefer digital for ease
• Glass may break if dropped

3. Intex Floating Pool Thermometer

−$0.71

View price

• Measures pool and spa water temperature
• English (Publication Language)

View price

The Intex Floating Pool Thermometer is a fun and functional addition to any pool. Featuring a colorful design often resembling a cartoon character, it’s great for families with kids. The thermometer provides accurate readings of water temperature and has a temperature range suitable for all pools.

Best for: Family-friendly design, appealing to children

Pros:

• Child-friendly design
• Accurate water temperature readings
• Affordable option

Cons:

• Limited to a specific temperature range
• Not as durable as some competitors

4. Solaxx So Clear Floating Chlorine Dispenser and Pool Thermometer

No products found.

The Solaxx So Clear combines two essential functions: chlorine dispensing and temperature monitoring. This dual-purpose device floats on the surface while keeping your pool chemicals well-dispersed. Its thermometer feature provides temperature readings while adding convenience in monitoring your pool’s sanitation levels.

Best for: Dual functionality for convenience

Pros:

• Combines chlorine dispensing and thermometer
• Floats easily on the water surface
• Precision temperature readings

Cons:

• Larger size may not be suitable for small pools
• Chlorine can affect its durability

5. Dohm Pool Thermometer

View price

• 🦩Cute Design: Adorable flamingo shape designs - that will add a touch of whimsy to your pool or spa.
• 🦩Keep your pool or spa at the perfect temperature with our easy-to-read thermometer. Temperature reading range：20 to 120 °F / -10 to 50 °C.
• 🦩Large size and clear display make it easy to read from a distance. The pool thermometer liquid ingredients: Water 90.1%; Liquid Nitrogen 9.9%.
• 🦩Includes a rope tether to keep the thermometer from floating away.
• 🦩Suitable for use in a variety of water sources, including swimming pools, hot tubs, baby pools, fish ponds, spas, large aquariums, and more.

View price

The Dohm Pool Thermometer offers a sleek design that is both stylish and functional. This thermometer includes a built-in stand, allowing it to be placed poolside or used while floating. It features an analog dial for temperature readings, making it easy to monitor without any batteries required.

Best for: Aesthetic and battery-free operation

Pros:

• Sleek, elegant design
• Battery-free and eco-friendly
• Durable and weather-resistant construction

Cons:

• Analog display may require closer inspection
• Not as exact as digital options

6. Poolmaster 50313 Floating Pool Thermometer

View price

• Waterproof character made from soft-molded PVC with Custom detailing
• Large easy-to-read display is housed inside of a 360-degree shatter proof lens
• 1-inch diameter tube-style body features alcohol-based indicator solution
• Reads maximum high temperature of 120 degrees F, and 50 degrees C
• Polyethylene cord included

View price

Offering both dual Fahrenheit and Celsius readings, the Poolmaster 50313 gives pool owners the ability to monitor water temperature with precision. With its floating design and built-in lanyard for easy retrieval, this thermometer is a practical choice for any pool owner.

Best for: Versatile temperature scale

Pros:

• Integrated lanyard for easy retrieval
• Locking cap for easy storage
• Durable and reliable construction

Cons:

• May need to be retrieved frequently
• The large size may not suit all pools

7. Limei Digital Pool Thermometer

−$21.79

View price

• This sensor/transmitter is specially designed for measuring the water temperature in swimming pools, hot tubs, spas and so on. If monitoring ambient/outdoor air temperature, it may be inaccurate
• 【More Durable Sensor】Floating pool thermometer is designed with lPX8 waterproof and high-quality ABS materials, ensuring it can withstand exposure to pool water and various weather conditions for long time! Ensure mental parts are properly aligned and press them together firmly to ensure waterproof performance (The alignment marks on the edges of the upper and lower parts are aligned.)
• 【Higher Accuracy】This pool temperature sensor features highly precise sensor, accurate to ±0.9℉(±.0.5℃) in the temperature range of 32°F to 140°F. Sensor temperature range: -40℉-158℉, suitable for ice bath, hot tubs, cold plunge, babybath, hot springs, ponds and aquarium
• 【500FT Longer Range】Using RF technology for more stable connectivity, this pool temperature thermometer maintains a stable connection up to 500 feet, letting you check your pool’s temperature remotely from indoors—no need to step outside!
• 【Larger Backlight Display】 Swimming pool thermometer wireless with temperature and humidity monitor features a large backlit screen for easy readability in low light, along with 24-hour max/min temperature memory to track temperatures throughout the day!

View price

The Limei Digital Pool Thermometer is encased in a waterproof housing, making it perfect for outdoor use. This digital thermometer provides clear, easy-to-read results and has a built-in clock and memory feature that stores your previous temperature readings.

Best for: Memory storage and extra functionalities

Pros:

• Built-in memory for tracking temperature changes
• Clear digital display with backlight
• Water-resistant for outdoor use

Cons:

• More expensive than traditional models
• Battery life may be limited

8. Swimways Baby Shark Floating Pool Thermometer

View price

• Baby Bath Time: This is a super cute shark bath thermometer, great for new parents to check the correct bathing temperature for their new arrival, its really easy to see the coloured indicators then adjust the the water to suit, new parents can also easily grasp! 
• Multifunctional thermometer: Measuring water temperature in the bathtub and room. Not only a thermometer, but also a clock. Elevate baby bath experience with real-time temperature readings and accurate time tracking. Whether you're monitoring the water's chill or record the baby's bathing time, this device has you covered.
• High and Low Temperature Alarm: safe and accurate thermometer flashes and beeps when water is too hot. When the water is too cool, the light flashes blue. No worry about the bath water is too hot or too cold.
• Child-Safe Materials: bath thermometer is made of BPA Free and odorless materials, ensuring it's safe for all ages and can with stand playful bath times.
• Educational Animals Toy: This is great for education purposes, creative play, baby shower gift. It will help to improve children's concentration and outsight, develop and train their imagination and creativity. Parents can tell the children stories about the information of the animals or the happy life of the animal family, it will improve the parent-child relationship.

View price

This fun and engaging Swimways thermometer features the popular Baby Shark design, making it perfect for families with younger children. It provides accurate water temperature readings while also serving as a playful addition to the pool area.

Best for: Families looking for a fun thermometer

Pros:

• Child-friendly design
• Accurate temperature readings
• Affordable and lightweight

Cons:

• Made of plastic, durability concerns
• Limited temperature range

9. ThermoPro TP65A Digital Thermometer

−$10.01

View price

• Large backlit touchscreen: 4 inches large lcd display features a backlit touchscreen, making the indoor outdoor weather station easier to read in dim light conditions and superbly simple to use
• Wireless temperature and humidity monitor: Measures indoor/outdoor temperatures and humidity percentages; Capable of displaying the readings from up to 3 outdoor remote sensors to monitor multiple locations; Temperature displayed in °f or °c
• Max and min records: All time/24 hours max and min temperature and humidity percentages recorded and displayed on humidity gauge; Temperature/humidity trend arrows indicate whether it’s getting warmer or colder or more humid near the remote sensor
• 500ft remote range: Indoor/outdoor thermometer wireless with 500ft/150m remote range, capable of strong signal penetration (enhanced 915 mhz); tabletop, wall-mountable and magnetic back design
• Multiple placement options: Digital outdoor thermometer, features a magnetic back to allow you to easily attach to any metal surface; a hanging hole for hooks, tabletop for any layout situation, which help you place your outdoor thermometer anywhere to fit your home's needs

View price

The ThermoPro TP65A offers precise temperature readings with a robust wireless range for convenient monitoring. Although primarily designed for home use, it can function effectively for pool conditions, providing an easy way to check temperature from a distance.

Best for: Wireless convenience and precision

Pros:

• Wireless range for monitoring
• Easy-to-read digital display
• Reliable accuracy

Cons:

• Not solely designed for pools, may need adaptation
• Higher price point than basic models

10. AquaChek Pool Thermometer

−$21.79

View price

• This sensor/transmitter is specially designed for measuring the water temperature in swimming pools, hot tubs, spas and so on. If monitoring ambient/outdoor air temperature, it may be inaccurate
• 【More Durable Sensor】Floating pool thermometer is designed with lPX8 waterproof and high-quality ABS materials, ensuring it can withstand exposure to pool water and various weather conditions for long time! Ensure mental parts are properly aligned and press them together firmly to ensure waterproof performance (The alignment marks on the edges of the upper and lower parts are aligned.)
• 【Higher Accuracy】This pool temperature sensor features highly precise sensor, accurate to ±0.9℉(±.0.5℃) in the temperature range of 32°F to 140°F. Sensor temperature range: -40℉-158℉, suitable for ice bath, hot tubs, cold plunge, babybath, hot springs, ponds and aquarium
• 【500FT Longer Range】Using RF technology for more stable connectivity, this pool temperature thermometer maintains a stable connection up to 500 feet, letting you check your pool’s temperature remotely from indoors—no need to step outside!
• 【Larger Backlight Display】 Swimming pool thermometer wireless with temperature and humidity monitor features a large backlit screen for easy readability in low light, along with 24-hour max/min temperature memory to track temperatures throughout the day!

View price

The AquaChek Pool Thermometer is a compact and convenient option that offers a simple design and accurate readings. Ideally suited for both pools and spas, its small size makes it easy to store and transport without any frills. It is an excellent value for those looking for basic functionalities without breaking the bank.

Best for: Affordability and portability

Pros:

• Small and portable design
• Accurate temperature readings
• Affordable choice for budget-conscious buyers

Cons:

• Limited features compared to advanced models
• Analog display may not be preferred by some users

In 2025, the market for pool thermometers offers a variety of options to suit every need, from family-friendly designs to advanced digital displays. Whether you prioritize budget, features, or ease of use, there’s a product on Amazon that fits your requirements perfectly. Consider investing in one of these best pool thermometers to elevate your swimming experience.

Buying Guide for Pool Thermometers

When it comes to maintaining your pool, knowing the water temperature is crucial for comfort, safety, and maintenance. A good pool thermometer can help monitor the temperature accurately. Here’s a comprehensive buying guide to ensure you choose the right one for your needs.

Types of Pool Thermometers

1. Floating Thermometers

   • Description: These thermometers float on the surface of the water.
   • Pros: Easy to read and use; often has a decorative design.
   • Cons: Can be affected by wind; might get lost if not tethered.

2. Submersible Thermometers

   • Description: Designed to be placed beneath the water.
   • Pros: More stable and less likely to be swept away by wind; less exposure to the elements.
   • Cons: May be harder to read depending on the placement.

3. Digital Thermometers

   • Description: Electronic devices that give a digital readout.
   • Pros: Often more accurate; usually provides quick readings; might have additional features like alarms.
   • Cons: Requires batteries and may be more expensive.

4. Infrared Thermometers

   • Description: This non-contact type uses infrared technology to measure the surface temperature.
   • Pros: Quick and easy to use; doesn’t require immersion.
   • Cons: May not be as accurate for large bodies of water.

5. Glass Thermometers

   • Description: Traditional glass thermometers filled with liquid.
   • Pros: Very reliable; can last a long time.
   • Cons: Fragile; may break if dropped.

Features to Consider

1. Accuracy

   • Look for thermometers that provide accurate readings. Check user reviews and specifications to ensure reliability.

2. Temperature Range

   • Make sure the thermometer can measure the temperature range typical for your pool (usually 32°F to 120°F or 0°C to 50°C).

3. Ease of Reading

   • Choose a thermometer with a clear scale or a large digital display for easy reading.

4. Durability

   • Make sure the materials used are weather-resistant, especially for outdoor pools. Look for UV-resistant plastics or high-quality glass.

5. Installation and Use

   • Floating thermometers are typically the easiest to use. Ensure it comes with a tether or float mechanism to prevent loss.

6. Calibration

   • Some thermometers may require calibration. Ensure you understand the process if needed.

7. Additional Features

   • Consider features such as:
     • Hooks/Suction Cups: For easy attachment.
     • Remote Readings: Some digital thermometers allow readings from a distance.
     • Memory Function: Records previous temperatures.

Price Range

• Budget: Basic floating or glass thermometers can range from $10 to $20.
• Mid-Range: Digital or more advanced floating thermometers typically range from $20 to $50.
• High-End: Infrared and professional-grade thermometers can cost upwards of $50.

Where to Buy

• Local Retail Stores: Home improvement stores, pool supply shops, and department stores.
• Online Retailers: Websites like Amazon, eBay, and specialized pool supply sites often have a wider selection and customer reviews.

Maintenance Tips

• Regularly check the calibration of the thermometer.
• For digital models, replace batteries as needed to ensure accuracy.
• Clean the thermometer periodically to avoid buildup of chlorine or other pool chemicals that may affect readings.

Conclusion

Choosing the right pool thermometer enhances the enjoyment and safety of your swimming experience. Consider your specific needs, preferences, and the features that matter most to you—whether it’s ease of use, accuracy, or durability. With the right thermometer, you’ll have peace of mind knowing your pool temperature is always monitored and maintained effectively.