September Weather in Brighton

Last updated: March 2, 2024

The weather in Brighton, United Kingdom, during September is characterized by an average temperature of 16°C (62°F). Highs can soar to 21°C (69°F), while lows may dip to 11°C (52°F). Typically, the humidity level in Brighton throughout September hovers around 82%.

11°C (52°F)

Minimum temperature

16°C (62°F)

Average temperature

21°C (69°F)

Maximum temperature

82%

Humidity

Precipitation and Sunshine hours

In September, Brighton averages 63 mm (2.5 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 12 hours 34 minutes of daylight, with the sun shining for approximately 10 hours 48 minutes each day. Additionally, there is a 37% probability of sunny days during this period.

63 mm (2.5 inches)

Precipitation

11 rainy days

Rainy days

10 hours 48 minutes

Sunshine hours

37%

Chance of sun

UV Index

In September, the UV Index in Brighton reaches a maximum of 6, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 2 3 4 5 5 5 4 3 2 1 1
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

Compare Brighton's Climate with Cities Worldwide