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August Weather in Portslade, United Kingdom

Last updated: August 27, 2025

In August, the average temperature in Portslade, United Kingdom hovers around 18°C (64°F). Expect lows of 12°C (54°F) and highs reaching up to 24°C (76°F). With an average humidity of 76%, you might feel a bit of stickiness in the air. Don't forget your umbrella, as 74 mm (2.9 in) of precipitation is likely over about 13 days!

August Temperature in Portslade

In August in Portslade, the average temperature is 18°C (64°F), with maximums reaching 24°C (76°F) and minimums dropping to as low as 12°C (54°F). This pleasant climate makes it an ideal time for outdoor adventures and sightseeing in Portslade.

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

The chart illustrates August temperature patterns in Portslade, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portslade, August typically has an average temperature of 18°C (64°F), with highs reaching up to 24°C (76°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec454546495459636462575148
Data source: Temperature data for Portslade 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 Portslade

In Portslade in August, the precipitation amount is 74 mm (2.9 in) over the course of 13 days.

August Precipitation Trends in Portslade

The chart displays monthly precipitation patterns in Portslade, 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 Portslade, August typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec747867294765527463129110138
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Portslade

In Portslade in August, humidity is 76%. With an average temperature of 18°C (64°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities feel steamy and invigorating—perfect for exploring charming streets, though you might want to take breaks in the shade.

August Average Humidity in Portslade

This chart illustrates the average monthly humidity levels in Portslade, 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 Portslade 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 Portslade

In Portslade 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 Portslade.

Maximum UV Index Levels in Portslade for August

The chart shows the monthly maximum UV Index (UVI) for Portslade 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 Portslade typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224678876421
Data source: Portslade 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 Portslade Compares to Other Months

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

This table compares monthly weather conditions in Portslade, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)74 mm (2.9 inches)91%low
February Weather7°C (45°F)78 mm (3.1 inches)89%low
March Weather8°C (47°F)67 mm (2.6 inches)86%moderate
April Weather9°C (49°F)29 mm (1.2 inches)85%high
May Weather12°C (54°F)47 mm (1.8 inches)79%high
June Weather15°C (59°F)65 mm (2.6 inches)80%very high
July Weather17°C (63°F)52 mm (2.0 inches)71%very high
August Weather18°C (64°F)74 mm (2.9 inches)76%high
September Weather16°C (62°F)63 mm (2.5 inches)82%high
October Weather14°C (58°F)129 mm (5.1 inches)90%moderate
November Weather11°C (52°F)110 mm (4.3 inches)92%low
December Weather9°C (48°F)138 mm (5.4 inches)92%low

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