Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The average high-temperature during September is a still enjoyable 17°C (62.6°F), almost matching the conditions of the preceding month. During the month of September, the nighttime temperature falls to an average of 11.3°C (52.3°F).Humidity
The average relative humidity in September in Topsham is 84%.Rainfall
In Topsham, during September, the rain falls for 11.5 days and regularly aggregates up to 26mm (1.02") of precipitation. Throughout the year, in Topsham, there are 171.2 rainfall days, and 453mm (17.83") of precipitation is accumulated.Snowfall
In Topsham, United Kingdom, snow does not fall in April through October.Sea temperature
In September, the average sea temperature is 16.6°C (61.9°F).Note: In 16.6°C (61.9°F), swimming is not an enjoyable activity for most. The challenge of managing one's breathing increases as the temperature goes under 21°C (69.8°F).
Daylight
The average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:58 pm. On the last day of September, in Topsham, United Kingdom, sunrise is at 7:13 am and sunset at 6:53 pm BST.
Sunshine
In Topsham, the average sunshine in September is 7.5h.UV index
The months with the highest UV index in Topsham, United Kingdom, are May through September, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What is the usual temperature for Topsham in September?
What is the average humidity in September in Topsham?
How many days does it rain in September in Topsham?
When it does not snow in Topsham?
What is the sea water temperature in September in Topsham?
What is the average length of the day in September in Topsham?
What time are sunrise and sunset in September in Topsham?
How many hours of sunshine does Topsham have in September?
When is the highest UV index in Topsham?
How high is the UV index in September in Topsham?
Average temperature in September
Topsham, United Kingdom
- Average high temperature in September: 17°C
The warmest month (with the highest average high temperature) is July (19.1°C).
The month with the lowest average high temperature is February (7.9°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).
Average pressure in September
Topsham, United Kingdom
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in September
Topsham, United Kingdom
- Average wind speed in September: 16.7km/h
The windiest month (with the highest average wind speed) is February (22.5km/h).
The calmest month (with the lowest average wind speed) is July (14.8km/h).
Average humidity in September
Topsham, United Kingdom
- Average humidity in September: 84%
The months with the highest relative humidity are January, October, November and December (86%).
The months with the lowest relative humidity are April, May and July (83%).
Average rainfall in September
Topsham, United Kingdom
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is November (56mm).
The driest month (with the least rainfall) is May (24mm).
Average rainfall days in September
Topsham, United Kingdom
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is November (17.8 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in September
Topsham, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Topsham, United Kingdom
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Topsham, United Kingdom
- Average sea temperature in September: 16.6°C
The best month for swimming (with the highest average sea temperature) is August (16.7°C).
The coldest month (with the lowest average sea temperature) is March (9.1°C).
Average daylight in September /
Average sunshine in September
Topsham, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is July (Average sunshine: 8h and 30min).
The months with the least sunshine are January, February and November (Average sunshine: 4h and 6min).
Average sunshine days in September
Topsham, United Kingdom
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is September (15.2 days).
The month with the least sunshine days is November (8.6 days).
Average UV index in September
Topsham, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Topsham, United Kingdom
- Average cloud cover in September: 48
The month with the most cloud cover is November (Cloud cover 59).
The month with the least cloud cover is April (Cloud cover 45).
Average visibility in September
Topsham, United Kingdom
- Average visibility in September: 9km
The month with the highest visibility is February (10km).
The months with the lowest visibility are January, March, April, May, June, July, August, September, October, November and December (9km).
Topsham, United Kingdom
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