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August Weather in Watford, United Kingdom

Last updated: August 27, 2025

In August, the average temperature in Watford, United Kingdom hovers around 17°C (64°F), with a pleasant range that can dip as low as 8°C (46°F) and climb to a warm 34°C (93°F). Expect some wet days, as 71 mm (2.8 in) of precipitation can fall over approximately 13 days. With an average humidity of 76%, this month promises a balmy atmosphere.

August Temperature in Watford

In August in Watford, the average temperature is 17°C (64°F). The maximum can reach 34°C (93°F), and the minimum can be as low as 8°C (46°F). It's a great time to visit for those who enjoy mild weather with the possibility of warmer days.

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

The chart illustrates August temperature patterns in Watford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Watford, August typically has an average temperature of 17°C (64°F), with highs reaching up to 34°C (93°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec404245495561656359534643
Data source: Temperature data for Watford 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 Watford

In Watford in August, the total precipitation amount is 71 mm (2.8 in) occurring over the course of 13 days.

August Precipitation Trends in Watford

The chart displays monthly precipitation patterns in Watford, 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 Watford, August typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec565257346674677151915483
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Watford

In Watford in August, humidity is 76%. With an average temperature of 17°C (64°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel sluggish and draining, challenging travelers to stay hydrated and seek respite in shaded areas or air-conditioned spaces.

August Average Humidity in Watford

This chart illustrates the average monthly humidity levels in Watford, 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 Watford is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%79%81%71%76%82%91%92%92%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Watford

In Watford in August, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Watford.

Maximum UV Index Levels in Watford for August

The chart shows the monthly maximum UV Index (UVI) for Watford 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 Watford typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578876421
Data source: Watford 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 Watford Compares to Other Months

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

This table compares monthly weather conditions in Watford, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)56 mm (2.2 inches)91%low
February Weather6°C (43°F)52 mm (2.0 inches)89%low
March Weather7°C (45°F)57 mm (2.2 inches)86%moderate
April Weather9°C (49°F)34 mm (1.3 inches)85%moderate
May Weather13°C (55°F)66 mm (2.6 inches)79%high
June Weather16°C (61°F)74 mm (2.9 inches)80%very high
July Weather18°C (65°F)67 mm (2.6 inches)71%very high
August Weather17°C (64°F)71 mm (2.8 inches)76%high
September Weather15°C (59°F)51 mm (2.0 inches)82%high
October Weather11°C (53°F)91 mm (3.6 inches)90%moderate
November Weather8°C (46°F)54 mm (2.1 inches)92%low
December Weather6°C (43°F)83 mm (3.3 inches)92%low

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