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Brighton & Hove Weather in September
September in Brighton & Hove brings pleasant temperatures, with daytime highs of 19°C (66°F) and nights around 14°C (57°F). Quite a bit of rainfall is expected, around 71 mm (2.8 in), so pack an umbrella.
Rainfall in Brighton & Hove in September
Expect around 12 days of rain based on historical data, with 71 mm (2.8 in) average. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Brighton & Hove in September
Brighton & Hove in September gets highs of 19°C (66°F) during the day and drops to 14°C (57°F) at night. September is part of summer. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights cool down to 14°C (57°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Average water temperature in September
The water is 18°C (64°F) this month, cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Brighton & Hove Temperature in September
Min Temperature
14°C (57°F)
Max Temperature
19°C (66°F)
Water Temperature
18°C (64°F)
Chance of Rain
41%
Precipitation
71 mm (2.8 in)
Rainy days
12 days
Brighton & Hove Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Brighton & Hove - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Brighton & Hove typically stay consistent throughout September, with daily highs averaging around 19°C (66°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 12°C (54°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Brighton & Hove in September
Browse day-by-day weather records for Brighton & Hove spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Brighton & Hove historical weather extremes in September
Based on 49 years of weather observations in Brighton & Hove between 1976 and 2025, these are the recorded extremes.
- The hottest September day on record in Brighton & Hove reached 29°C (84°F) (September 5, 2023).
- The coldest September day was on September 27, 1993, with a maximum of 10°C (50°F).
- The coldest night in September in Brighton & Hove was on September 23, 1979, with a minimum of 2°C (36°F).
- Peak precipitation in September occurred on September 27, 2024, when 27 mm (1.1 in) of precipitation was measured.
Best Places in the United Kingdom in September
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Brighton & Hove in September
For Brighton & Hove in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Expect water temperatures of around 18°C (64°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items.
What To Do in Brighton & Hove in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping8/10 -
Outdoor sports9/10
Brighton & Hove 3-Day Forecast
More climate data for Brighton & Hove
Temperature Rainfall Water Temp
See the full Brighton & Hove climate overview or explore weather in the United Kingdom.
Popular in September
Where to go in September - average daytime high across popular destinations.
London
20°C (68°F) Bath19°C (66°F) Torquay19°C (66°F) Manchester
18°C (64°F) York19°C (66°F) Edinburgh17°C (63°F) Blackpool17°C (63°F) Glasgow17°C (63°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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