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August Weather in Waterville, United States

Last updated: June 24, 2025

In August, the average temperature in Waterville, United States hovers around 25°C (77°F). However, you can expect a temperature range from a chilly 11°C (53°F) to a scorching 36°C (98°F). During this month, precipitation typically totals 98 mm (3.9 in), occurring over about 10 days, while the average humidity remains high at 78%. Be prepared for varying weather conditions as you enjoy your time!

August Temperature in Waterville

In August in Waterville, the average temperature is 25°C (77°F). Maximums can reach 36°C (98°F), while minimums can dip as low as 11°C (53°F). This makes it an ideal time for travelers to enjoy a range of outdoor activities, from soaking up the sun to exploring the pleasant cooler evenings.

August Weather in Waterville: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Waterville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Waterville, August typically has an average temperature of 25°C (77°F), with highs reaching up to 36°C (98°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec303045536577807672554335
Data source: Temperature data for Waterville generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Waterville

In Waterville in August, the total precipitation amount is 98 mm (3.9 in) recorded over a span of 10 days.

August Precipitation Trends in Waterville

The chart displays monthly precipitation patterns in Waterville, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Waterville, August typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec282887692011029198631233326
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Waterville

In Waterville in August, humidity is 78%. With an average temperature of 25°C (77°F), this humidity feels like walking through a warm, damp blanket, making travel feel a bit more exhausting and sticky as you navigate the sights.

August Average Humidity in Waterville

This chart illustrates the average monthly humidity levels in Waterville, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Waterville is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Waterville

In Waterville in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Waterville.

Maximum UV Index Levels in Waterville for August

The chart shows the monthly maximum UV Index (UVI) for Waterville in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Waterville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Waterville August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Waterville Compares to Other Months

Weather in Waterville varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Waterville, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Waterville, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)28 mm (1.1 inches)76%moderate
February Weather-1°C (30°F)28 mm (1.1 inches)77%moderate
March Weather7°C (45°F)87 mm (3.4 inches)70%high
April Weather12°C (53°F)69 mm (2.7 inches)73%very high
May Weather18°C (65°F)201 mm (7.9 inches)82%very high
June Weather25°C (78°F)102 mm (4.0 inches)82%extreme
July Weather27°C (81°F)91 mm (3.6 inches)81%extreme
August Weather25°C (77°F)98 mm (3.9 inches)78%very high
September Weather22°C (72°F)63 mm (2.5 inches)71%very high
October Weather13°C (55°F)123 mm (4.9 inches)71%high
November Weather6°C (43°F)33 mm (1.3 inches)81%moderate
December Weather2°C (36°F)26 mm (1.0 inches)84%moderate

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