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West Sussex weather in September

Considering a trip to West Sussex this September and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What is the weather like in West Sussex in September?

West Sussex is a region in the United Kingdom. September in West Sussex generally has pleasant temperatures, with moderate precipitation. The month of September is in the summer season.

You can expect pleasant maximum daytime temperatures of around 19°C and nighttime temperatures around 13°C in Chichester.

In September, precipitation varies across different areas. From moderate rainfall in Alfold with an average of 56 mm to moderate rainfall in Selsey with 75 mm.

For specific regional insights in West Sussex for September, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our West Sussex climate page.

Where to go in West Sussex in September

Find the average weather conditions in September for the most popular destinations in West Sussex on the map below. Click on a destination dot for more detailed information.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in West Sussex

What is the weather like in September for the 5 most popular destinations in West Sussex?

Average weather in Chichester

In September Chichester generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 13°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Chichester
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
21°C 
15°C 
70 mm 
11 days 
19°C 
13°C 
69 mm 
12 days 
October   >> October
>>  
16°C 
11°C 
100 mm 
14 days 
Climate in Chichester

Average weather in Crawley

In September Crawley generally has pleasant temperatures with maximum daytime temperatures around 20°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Crawley
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
22°C 
14°C 
72 mm 
12 days 
20°C 
11°C 
58 mm 
12 days 
October   >> October
>>  
16°C 
8°C 
73 mm 
14 days 
Climate in Crawley

Average weather in Worthing

In September Worthing generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 14°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Worthing
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
20°C 
15°C 
68 mm 
12 days 
19°C 
14°C 
70 mm 
12 days 
October   >> October
>>  
16°C 
11°C 
105 mm 
14 days 
Climate in Worthing

Average weather in Horley

In September Horley generally has pleasant temperatures with maximum daytime temperatures around 20°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Horley
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
22°C 
13°C 
73 mm 
12 days 
20°C 
11°C 
58 mm 
12 days 
October   >> October
>>  
16°C 
8°C 
70 mm 
14 days 
Climate in Horley

Average weather in Arundel

In September Arundel generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 13°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Arundel
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
21°C 
15°C 
68 mm 
12 days 
19°C 
13°C 
67 mm 
12 days 
October   >> October
>>  
16°C 
11°C 
97 mm 
14 days 
Climate in Arundel

Is your destination not in the list? Have a look at other destinations in West Sussex, in the United Kingdom.

Is September the best time to visit West Sussex?

Given the typically pleasant weather conditions in Chichester, September might be a good time to visit West Sussex. However, the weather conditions may vary depending on your destination.

On average, the best time to visit West Sussex is in July and August with generally perfect weather in Chichester. On the other hand, the weather in January, February, November and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in West Sussex. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to the United Kingdom? Get detailed historical weather averages for many cities in the United Kingdom.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.