Normal weather for West Haven in September
It's warm in September in West Haven with an average temperature of 27°C. Temperatures this month range from a low of 22°C to a high of 32°C. At night, you can expect temperatures between 11°C and 18°C.
In September, there is an average of 36 mm of precipitation, spread over 6 days. The wind speed is around 4 Bft, mostly coming from the South.
West Haven in September |
London | ||
|---|---|---|---|
 Average Temperature |
27°C | 20°C | |
 High Temp |
32°C | 22°C | |
| Low Temp |
22°C | 17°C | |
 Total Precipitation |
36 mm | 44 mm | |
| Rainy Days |
6 days | 8 days | |
Start of September
The month of September starts in West Haven with hot temperatures, averaging around 31°C during the day and nights close to 17°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. For the evening and morning, a shirt, maybe a light cardigan, and light trousers will do.
Mid-September
By mid-September, the average daytime temperature drops to around 27°C, with nights close to 14°C. Not much precipitation expected during this period. It’s mostly dry with sunshine.
Temperatures vary between day and night, so it’s smart to wear layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. For the evening and morning, a shirt, maybe a light cardigan, and light trousers will do.
End of September
By the end of September, the average daytime temperature in West Haven will be around 24°C, with nights close to 12°C. A shower might show up, but overall the weather will be dry and sunny.
As it gets cooler in the evening, it’s best to wear layers. A T-shirt, light trousers or skirt, and a light jacket are perfect for daytime. In the evening and morning, we recommend a light coat, jumper or cardigan, and long trousers.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit West Haven?
Want nice weather? Then September is a great time to be in West Haven. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for West Haven in September
With 40°C, West Haven hit the highest temperature in the last 10 years in September 2022. The lowest daytime temperature in this month was 8°C in 2019. The extreme night temperatures ranged from a low of 0°C to a high of 25°C.
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Daily Temperature in September in West Haven
This chart shows the average daily temperatures, both day and night, for each day in September in West Haven, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in West Haven
The chart below shows the average daily precipitation in September for West Haven, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 6 days of rain in West Haven.
Daily UV Index in September in West Haven
This chart shows the average daily UV index in September in West Haven, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in West Haven Over the Years
This chart shows the average temperature in September in West Haven, measured in degrees Celsius, over the past years.
Total Precipitation in September in West Haven Over the Years
This chart shows the average precipitation in September in West Haven, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for West Haven
Click on a specific day in September for detailed info on the typical weather on that day in West Haven. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in West Haven
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Average Weather in West Haven by Month
Click on a month below to see detailed weather info for West Haven. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of West Haven for all months at once
