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Hertfordshire weather in September

Are you planning a trip to Hertfordshire in September and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Hertfordshire in September?

Hertfordshire is a region in the United Kingdom. September in Hertfordshire generally has pleasant temperatures, with moderate precipitation.

You can expect pleasant maximum daytime temperatures of around 20°C and nighttime temperatures around 11°C in Bishops Stortford.

In September, precipitation varies across different areas. From moderate rainfall in Potters Bar with an average of 54 mm to moderate rainfall in Tring with 59 mm. Bishops Stortford enjoys a balanced 146 hours of sunlight. Ensuring it's neither too overcast nor too sunny.

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

Where to go in Hertfordshire in September

Find more information for the most popular destinations in the Hertfordshire on the map below. Click on a destination dot for more detailes.

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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

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

Bishops Stortford

In September Bishops Stortford 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.

Bishops Stortford
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
23°C 
13°C 
205 hours 
68 mm 
12 days 
20°C 
11°C 
146 hours 
55 mm 
12 days 
October   >> October
>>  
16°C 
8°C 
112 hours 
61 mm 
14 days 
Climate in Bishops Stortford

Watford

In September Watford 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.

Watford
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
22°C 
13°C 
204 hours 
68 mm 
12 days 
20°C 
11°C 
155 hours 
56 mm 
12 days 
October   >> October
>>  
16°C 
8°C 
113 hours 
64 mm 
14 days 
Climate in Watford

Saint Albans

In September Saint Albans 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.

Saint Albans
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
22°C 
13°C 
204 hours 
68 mm 
12 days 
20°C 
11°C 
155 hours 
57 mm 
12 days 
October   >> October
>>  
15°C 
8°C 
113 hours 
64 mm 
14 days 
Climate in Saint Albans

Stevenage

In September Stevenage 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.

Stevenage
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
23°C 
13°C 
183 hours 
68 mm 
12 days 
20°C 
11°C 
141 hours 
56 mm 
12 days 
October   >> October
>>  
16°C 
8°C 
115 hours 
61 mm 
14 days 
Climate in Stevenage

Hemel Hempstead

In September Hemel Hempstead 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.

Hemel Hempstead
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
22°C 
13°C 
204 hours 
68 mm 
13 days 
20°C 
11°C 
155 hours 
58 mm 
12 days 
October   >> October
>>  
15°C 
8°C 
113 hours 
65 mm 
15 days 
Climate in Hemel Hempstead

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

Is September the best time to visit Hertfordshire?

We consider September to be one of the best times to travel to Hertfordshire. Typically, the climate in Bishops Stortford is perfect. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in June, July, August and September offering mostly perfect weather in Bishops Stortford. The weather in January, February and December, on the other hand, tends to be poor.

Interested in more climate information?

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

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