September weather forecastBíldudalur, Iceland
September
Weather in September
The first month of the autumn, September, is also a frosty month in Bíldudalur, Iceland, with temperature in the range of an average low of 3.9°C (39°F) and an average high of 6.6°C (43.9°F).Temperature
The transition into September reveals an average high-temperature of a still chilly 6.6°C (43.9°F), mirroring a close resemblance to August. During the nights of September, Bíldudalur records an average low-temperature of 3.9°C (39°F), reflecting a modest decrease from daytime highs.Humidity
In September, the average relative humidity in Bíldudalur is 87%.Rainfall
In Bíldudalur, in September, it is raining for 17.6 days, with typically 55mm (2.17") of accumulated precipitation. Throughout the year, in Bíldudalur, there are 124.6 rainfall days, and 664mm (26.14") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, August through December. In Bíldudalur, Iceland, during September, snow falls for 1.5 days and regularly aggregates up to 15mm (0.59") of snow. In Bíldudalur, during the entire year, snow falls for 96.2 days and aggregates up to 1214mm (47.8") of snow.Daylight
In Bíldudalur, the average length of the day in September is 13h and 5min.On the first day of the month, sunrise is at 06:13 and sunset at 20:55. On the last day of September, in Bíldudalur, sunrise is at 07:43 and sunset at 19:04 GMT.
Sunshine
The average sunshine in September is 3.5h.UV index
The average daily maximum UV index in September in Bíldudalur is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 2 during September translates into the following directions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bíldudalur, Iceland
- Average high temperature in September: 6.6°C
The warmest month (with the highest average high temperature) is July (9.5°C).
The month with the lowest average high temperature is March (-1°C).
- Average low temperature in September: 3.9°C
The month with the highest average low temperature is July (6.3°C).
The coldest month (with the lowest average low temperature) is December (-4.3°C).
Average pressure in September
Bíldudalur, Iceland
- Average pressure in September: 1003.4mbar
The month with the highest atmospheric pressure is June (1014.7mbar).
The month with the lowest atmospheric pressure is January (997.3mbar).
Average wind speed in September
Bíldudalur, Iceland
- Average wind speed in September: 17.4km/h
The windiest months (with the highest average wind speed) are February and December (25.2km/h).
The calmest month (with the lowest average wind speed) is June (13.4km/h).
Average humidity in September
Bíldudalur, Iceland
- Average humidity in September: 87%
The months with the highest relative humidity are January, February, October and December (88%).
The month with the lowest relative humidity is June (81%).
Average rainfall in September
Bíldudalur, Iceland
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is January (88mm).
The driest month (with the least rainfall) is June (20mm).
Average rainfall days in September
Bíldudalur, Iceland
- Average rainfall days in September: 17.6 days
The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is December (6.5 days).
Average snowfall in September
Bíldudalur, Iceland
- Average snowfall in September: 15mm
The month with the highest snowfall is March (249mm).
The month with the least snowfall is July (0mm).
Average snowfall days in September
Bíldudalur, Iceland
- Average snowfall days in September: 1.5 days
The month with the highest number of snowfall days is March (17.5 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Bíldudalur, Iceland
- Average daylight in September: 13h and 6min
The month with the longest days is June (Average daylight: 22h and 42min).
The month with the shortest days is December (Average daylight: 3h and 24min).
- Average sunshine in September: 3h and 30min
The month with the most sunshine is August (Average sunshine: 5h and 48min).
The month with the least sunshine is June (Average sunshine: 0h and 24min).
Average sunshine days in September
Bíldudalur, Iceland
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is June (18 days).
The month with the least sunshine days is February (6.7 days).
Average UV index in September
Bíldudalur, Iceland
- Average UV index in September: 2
The month with the highest UV index is July (UV index 3).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in September
Bíldudalur, Iceland
- Average cloud cover in September: 74
The month with the most cloud cover is March (Cloud cover 81).
The month with the least cloud cover is June (Cloud cover 65).
Average visibility in September
Bíldudalur, Iceland
- Average visibility in September: 9km
The months with the highest visibility are May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, April, November and December (8km).
