Average daily temperature during the week of 8 September 2025 - 14 September 2025 was 18 °C (64 °F), average minimal (night) temperature was 12 °C (54 °F). These temperatures are roughly same as the long-time average for Brighton, being 19 °C (66 °F) for daily temperatures and 10 °C (50 °F) for night temperatures. The average temperatures observed during different times of day (based on local time) were as below: 7am 14 °C (57 °F), 10am 16 °C (61 °F), 1pm 17 °C (63 °F), 4pm 17 °C (63 °F), 7pm 16 °C (61 °F), 10pm 15 °C (59 °F).

There were 2 days without rain, 2 days with light rain and 3 days with moderate rain during this week. During the whole week, total of 42 mm (1.65 in) of precipitation was observed, which is above the long term average for Brighton, which is 14 mm (0.55 in). On average, the cloud coverage during daylight hours (from dawn to dusk) was 44 %.

An average wind speed of 4.1 m/s was recorded. Prevailing wind direction(s) were South-West and West. The atmosferic pressure ranged from 1000 hpa to 1018 hpa. The air in Brighton had an average humidity of 83 %.

During the daytime (from dawn to dusk), there were in average: 4 hours clear skies, 4 hours partially overcast skies, 2 hours overcast skies and 3 hours rainy weather. At 06:30, on average, the sun rose, and at 19:24, the sun set.

Weather overview

Brighton (United Kingdom) in general has a mild climate. Temperatures during the day are in the range from 8 °C (46 °F) in January to 22 °C (72 °F) in July. Sea temperatures are in the following range: 8 °C (46 °F) in March to 17 °C (62 °F) in September. The least rainy month in Brighton is June with its 8 days of rain, the rainiest month is January, when it rains 13 days. Temperatures during the night go from 2 °C (35 °F) in February to 12 °C (54 °F) in July.

January weather

The day temperature reaches its minimum, with its value being 8 °C (46 °F) in Brighton, while the descent of the sea temperature can be observed, its value is 9 °C (49 °F). The number of rainy days reaches its maximum, while the rainfall amount starts to descent, with its value being 84 mm (3.29 in). The maximum of the wind speed can be noticed, with its value being 7. The humidity reaches its maximum in January.

February weather

The number of rainy days descent's start could be observed, its value is 11 days in Brighton, while the descent of the rainfall amount can be observed, with its value of 60 mm (2.38 in). The sea temperature continues to descent, while the minimum of the night temperature can be noticed, with its value of 2 °C (35 °F). The beginning of the rise of the number of sun hours (without clouds) could be noticed, with its value of 3 hours.

March weather

The minimum of the sea temperature can be noticed in Brighton, while the day temperature starts to rise, its value is 11 °C (51 °F). The number of rainy days descents similarly to the previous month. The night temperature rise's start could be observed, with its value of 3 °C (37 °F). The number of sun hours (without clouds) continues to rise, with its value of 4 hours.

April weather

The rise of the day temperature can be observed, its value is 13 °C (56 °F) in Brighton, while the sea temperature starts to rise. The rainfall amount descent's start could be observed in April. The number of sun hours (without clouds) rises similarly to the previous month, the value of this measure is 6 hours. The night temperature rises similarly to the previous month, the value of this measure is 5 °C (40 °F).

May weather

The rise of the sea temperature can be observed, its value is 11 °C (51 °F) in Brighton, and the day temperature continues to rise too, with its value being 17 °C (62 °F). The rise of the night temperature can be observed, the value of this measure is 8 °C (46 °F). The number of sun hours (without clouds) rises similarly to the previous month, with its value of 7 hours. The number of rainy days starts to descent, its value is 9 days.

June weather

The rise of the day temperature can be observed, with its value being 20 °C (67 °F) in Brighton, and the sea temperature rises similarly to the previous month too, with its value being 13 °C (55 °F). The number of rainy days reaches its minimum, with its value being 8 days. The number of sun hours (without clouds) is on its maximum, the value of this measure is 7 hours. The night temperature continues to rise, with its value of 10 °C (50 °F). The wind speed reaches its minimum, the value of this measure is 5.

July weather

The maximum of the day temperature is observable, its value is 22 °C (72 °F) in Brighton, while the rise of the sea temperature can be observed, with its value being 15 °C (60 °F). The tourist season is about to start. The minimum of the rainfall amount is observable, with its value of 43 mm (1.70 in). The night temperature is on its maximum, with its value of 12 °C (54 °F). The beginning of the descent of the number of sun hours (without clouds) could be noticed, with its value of 7 hours.

August weather

The tourist season is close to its peak in August in Brighton. The sea temperature rises similarly to the previous month, the value of this measure is 17 °C (62 °F). The rainfall amount rise's start could be observed, with its value of 54 mm (2.13 in).

September weather

The day temperature starts to descent, with its value being 19 °C (66 °F) in Brighton, while the sea temperature is on its maximum, its value is 17 °C (62 °F). The number of rainy days starts to rise, the value of this measure is 10 days. The number of sun hours (without clouds) descent's start could be observed, with its value of 5 hours. The night temperature starts to descent, its value is 10 °C (50 °F).

October weather

The sea temperature descent's start could be observed, with its value of 16 °C (60 °F) in Brighton, while the descent of the day temperature can be observed, its value is 15 °C (60 °F). The rainfall amount starts to rise, its value is 89 mm (3.50 in), while the number of rainy days continues to rise, with its value of 12 days. The number of sun hours (without clouds) descents similarly to the previous month. The night temperature descents similarly to the previous month, its value is 8 °C (46 °F).

November weather

The descent of the day temperature can be observed, with its value being 11 °C (52 °F) in Brighton, and the sea temperature descents similarly to the previous month as well. The rise of the number of rainy days can be observed, with its value of 13 days. The night temperature descents similarly to the previous month. The number of sun hours (without clouds) descents similarly to the previous month, the value of this measure is 2 hours.

December weather

The descent of the day temperature can be observed, its value is 8 °C (47 °F) in Brighton, and the sea temperature continues to descent too, the value of this measure is 11 °C (52 °F). The maximum of the rainfall amount can be noticed, the value of this measure is 92 mm (3.62 in). The descent of the night temperature can be observed, with its value of 2 °C (36 °F). The minimum of the number of sun hours (without clouds) is observable, the value of this measure is 2 hours. The day length is on its minimum, with its value of 8 hours.

Is June a good month to visit Brighton?

Brighton can be visited in June - the weather will be moderate. The temperature of 10 °C (50 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.

What temperature can I expect during the day in Brighton in July?

The average daily temperature in July in Brighton is 22 °C (72 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.

Is there a wet season in August in Brighton?

No, there is no wet season in August in Brighton - you can expect 9 days of rain during the month.

What is the sea temperature in September in Brighton?

In Brighton in September expect the sea to be warm at 17 °C (62 °F). At this sea temperature, swimming probably won't be the best experience. You probably won't like to stay in water for a long time. On the other hand, there are a minority of people who seek these conditions.