September weather forecastKópasker, Iceland
September
Weather in September
The first month of the autumn, September, is also a frosty month in Kópasker, Iceland, with temperature in the range of an average low of 6.1°C (43°F) and an average high of 8.8°C (47.8°F).Temperature
Kópasker marks the arrival of September with an average high-temperature of a chilly 8.8°C (47.8°F), hardly different from August's 10.6°C (51.1°F). September witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 6.1°C (43°F).Humidity
The average relative humidity in September in Kópasker is 82%.Rainfall
In Kópasker, during September, the rain falls for 19.3 days and regularly aggregates up to 67mm (2.64") of precipitation. Throughout the year, in Kópasker, there are 151 rainfall days, and 635mm (25") of precipitation is accumulated.Snowfall
Months with snowfall are January through July, September through December. September is the first month it typically snows. Throughout September, in the average 1.3 snowfall days, it receives 7mm (0.28") of snow. Throughout the year, there are 79.7 snowfall days, and 632mm (24.88") of snow is accumulated.Daylight
The average length of the day in September is 13h and 7min.On the first day of the month, sunrise is at 05:42 and sunset at 20:29. On the last day of September, sunrise is at 07:15 and sunset at 18:35 GMT.
Sunshine
The average sunshine in September is 4.8h.UV index
The average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 2 translates into these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kópasker, Iceland
- Average high temperature in September: 8.8°C
The warmest month (with the highest average high temperature) is August (10.6°C).
The month with the lowest average high temperature is March (1.1°C).
- Average low temperature in September: 6.1°C
The month with the highest average low temperature is August (8.2°C).
The coldest month (with the lowest average low temperature) is March (-1.9°C).
Average pressure in September
Kópasker, 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 (998.7mbar).
Average wind speed in September
Kópasker, Iceland
- Average wind speed in September: 23.7km/h
The windiest month (with the highest average wind speed) is December (31.4km/h).
The calmest month (with the lowest average wind speed) is June (17.9km/h).
Average humidity in September
Kópasker, Iceland
- Average humidity in September: 82%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are May and December (80%).
Average rainfall in September
Kópasker, Iceland
- Average rainfall in September: 67mm
The wettest month (with the highest rainfall) is December (77mm).
The driest month (with the least rainfall) is June (24mm).
Average rainfall days in September
Kópasker, Iceland
- Average rainfall days in September: 19.3 days
The month with the highest number of rainy days is September (19.3 days).
The month with the least rainy days is March (8.2 days).
Average snowfall in September
Kópasker, Iceland
- Average snowfall in September: 7mm
The month with the highest snowfall is March (113mm).
The month with the least snowfall is August (0mm).
Average snowfall days in September
Kópasker, Iceland
- Average snowfall days in September: 1.3 days
The month with the highest number of snowfall days is March (13.3 days).
The month with the least snowfall days is August (0 days).
Average daylight in September /
Average sunshine in September
Kópasker, Iceland
- Average daylight in September: 13h and 6min
The month with the longest days is May (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 2h and 54min).
- Average sunshine in September: 4h and 48min
The month with the most sunshine is May (Average sunshine: 6h and 48min).
The month with the least sunshine is June (Average sunshine: 0h and 24min).
Average sunshine days in September
Kópasker, Iceland
- Average sunshine days in September: 7.8 days
The month with the most sunshine days is June (14.6 days).
The month with the least sunshine days is February (5.8 days).
Average UV index in September
Kópasker, Iceland
- Average UV index in September: 2
The months with the highest UV index are July and August (UV index 3).
The months with the lowest UV index are January, February, March, October and December (UV index 1).
Average cloud cover in September
Kópasker, Iceland
- Average cloud cover in September: 66
The month with the most cloud cover is March (Cloud cover 74).
The month with the least cloud cover is June (Cloud cover 60).
Average visibility in September
Kópasker, Iceland
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, November and December (8km).
