September weather forecastHelland, United Kingdom
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Helland, United Kingdom, with an average temperature ranging between min 11.5°C (52.7°F) and max 16.7°C (62.1°F).Temperature
September notes an average high-temperature of a still comfortable 16.7°C (62.1°F), subtly differing from August's 18.2°C (64.8°F). Helland experiences a nighttime temperature average of 11.5°C (52.7°F) during September.Humidity
In September, the average relative humidity is 85%.Rainfall
In Helland, during September, the rain falls for 12.9 days and regularly aggregates up to 37mm (1.46") of precipitation. In Helland, during the entire year, the rain falls for 191.7 days and collects up to 564mm (22.2") of precipitation.Snowfall
May through October are months without snowfall in Helland.Daylight
The average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 6:34 am and sunset at 8:03 pm. On the last day of September, in Helland, sunrise is at 7:18 am and sunset at 6:58 pm BST.
Sunshine
The average sunshine in September is 6.7h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Helland. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Helland, United Kingdom
- Average high temperature in September: 16.7°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (8.1°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is February (4.4°C).
Average pressure in September
Helland, United Kingdom
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1010.2mbar).
Average wind speed in September
Helland, United Kingdom
- Average wind speed in September: 17.5km/h
The windiest month (with the highest average wind speed) is December (24.2km/h).
The calmest month (with the lowest average wind speed) is July (15.7km/h).
Average humidity in September
Helland, United Kingdom
- Average humidity in September: 85%
The months with the highest relative humidity are June, August and October (86%).
The months with the lowest relative humidity are February, March and April (83%).
Average rainfall in September
Helland, United Kingdom
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is November (67mm).
The driest month (with the least rainfall) is May (28mm).
Average rainfall days in September
Helland, United Kingdom
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is November (19.2 days).
The month with the least rainy days is September (12.9 days).
Average snowfall in September
Helland, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (16mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Helland, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Helland, United Kingdom
- Average daylight in September: 12h and 36min
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: 6h and 42min
The month with the most sunshine is April (Average sunshine: 7h and 42min).
The months with the least sunshine are January and November (Average sunshine: 3h and 42min).
Average sunshine days in September
Helland, United Kingdom
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is November (8.9 days).
Average UV index in September
Helland, 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, March, November and December (UV index 2).
Average cloud cover in September
Helland, United Kingdom
- Average cloud cover in September: 54
The months with the most cloud cover are November and December (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 49).
Average visibility in September
Helland, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
