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August Weather in Fairfield, United States

Last updated: June 24, 2025

In August, the average temperature in Fairfield, United States is a pleasant 25°C (77°F). Temperatures can vary, with a minimum of 12°C (55°F) and a maximum reaching up to 35°C (96°F). Be prepared for occasional showers, as 88 mm (3.5 in) of precipitation can be expected over about 10 days. The air is generally quite humid, with an average humidity of 82%, adding to the overall tropical vibe.

August Temperature in Fairfield

In August in Fairfield, the average temperature is 25°C (77°F). The maximum can reach 35°C (96°F), and the minimum can be as low as 12°C (55°F). Overall, this makes Fairfield a comfortable destination for travelers looking to enjoy mild weather during this time of year.

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

The chart illustrates August temperature patterns in Fairfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fairfield, August typically has an average temperature of 25°C (77°F), with highs reaching up to 35°C (96°F) and lows dropping to around 12°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec343747566877807773604440
Data source: Temperature data for Fairfield 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 Fairfield

In Fairfield in August, the precipitation amount is 88 mm (3.5 in) spread over a duration of 10 days.

August Precipitation Trends in Fairfield

The chart displays monthly precipitation patterns in Fairfield, 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 Fairfield, August typically receives around 88 mm (3.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec921061351171381148988691089992
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Fairfield

In Fairfield in August, humidity is 82%. With an average temperature of 25°C (77°F), this humidity feels like a warm, oppressive blanket enveloping you as you explore, making every step feel more laborious and prompting the need for frequent hydration breaks.

August Average Humidity in Fairfield

This chart illustrates the average monthly humidity levels in Fairfield, 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 Fairfield is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Fairfield

In Fairfield 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 Fairfield.

Maximum UV Index Levels in Fairfield for August

The chart shows the monthly maximum UV Index (UVI) for Fairfield 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 Fairfield typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579111110109753
Data source: Fairfield 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 Fairfield Compares to Other Months

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

This table compares monthly weather conditions in Fairfield, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)92 mm (3.6 inches)84%moderate
February Weather3°C (37°F)106 mm (4.2 inches)82%moderate
March Weather9°C (48°F)135 mm (5.3 inches)84%high
April Weather13°C (56°F)116 mm (4.6 inches)83%very high
May Weather20°C (69°F)138 mm (5.4 inches)80%extreme
June Weather25°C (77°F)114 mm (4.5 inches)83%extreme
July Weather27°C (80°F)88 mm (3.5 inches)82%very high
August Weather25°C (77°F)88 mm (3.5 inches)82%very high
September Weather23°C (73°F)69 mm (2.7 inches)79%very high
October Weather16°C (61°F)107 mm (4.2 inches)79%high
November Weather7°C (45°F)99 mm (3.9 inches)88%moderate
December Weather4°C (40°F)92 mm (3.6 inches)87%moderate

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