September weather forecastKálfafell, Iceland
September weather for Kálfafell, Iceland: The first month of the autumn, September, is still a chilly month in Kálfafell, Iceland, with an average temperature fluctuating between 7.9°C (46.2°F) and 4.4°C (39.9°F). September is the most humid month in Kálfafell, with an average relative humidity of 83%.
September
Weather in September
The first month of the autumn, September, is still a chilly month in Kálfafell, Iceland, with an average temperature fluctuating between 7.9°C (46.2°F) and 4.4°C (39.9°F).Temperature
Kálfafell's September reports an average high-temperature of a frosty 7.9°C (46.2°F), exhibiting a minor difference from August. A consistent average low-temperature of 4.4°C (39.9°F), with a minor variance from the daytime highs, is noted in Kálfafell during the nights of September.Humidity
September is the most humid month in Kálfafell, with an average relative humidity of 83%.Rainfall
In Kálfafell, in September, it is raining for 20.1 days, with typically 102mm (4.02") of accumulated precipitation. Throughout the year, in Kálfafell, there are 187.1 rainfall days, and 1193mm (46.97") of precipitation is accumulated.Snowfall
In Kálfafell, snow does not fall in June through September.Daylight
In Kálfafell, the average length of the day in September is 13h and 0min.On the first day of September, sunrise is at 05:55 and sunset at 20:25. On the last day of the month, sunrise is at 07:18 and sunset at 18:42 GMT.
Sunshine
In Kálfafell, the average sunshine in September is 5.4h.UV index
The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 2 in September transforms into the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kálfafell, Iceland
- Average high temperature in September: 7.9°C
The warmest month (with the highest average high temperature) is July (10.6°C).
The month with the lowest average high temperature is December (0.6°C).
- Average low temperature in September: 4.4°C
The month with the highest average low temperature is July (7.2°C).
The coldest month (with the lowest average low temperature) is December (-3.6°C).
Average pressure in September
Kálfafell, Iceland
- Average pressure in September: 1003.5mbar
The month with the highest atmospheric pressure is June (1014mbar).
The month with the lowest atmospheric pressure is January (997.7mbar).
Average wind speed in September
Kálfafell, Iceland
- Average wind speed in September: 17.7km/h
The windiest month (with the highest average wind speed) is February (22.2km/h).
The calmest month (with the lowest average wind speed) is July (12.4km/h).
Average humidity in September
Kálfafell, Iceland
- Average humidity in September: 83%
The month with the highest relative humidity is September (83%).
The months with the lowest relative humidity are May and December (79%).
Average rainfall in September
Kálfafell, Iceland
- Average rainfall in September: 102mm
The wettest month (with the highest rainfall) is December (135mm).
The driest month (with the least rainfall) is June (46mm).
Average rainfall days in September
Kálfafell, Iceland
- Average rainfall days in September: 20.1 days
The month with the highest number of rainy days is September (20.1 days).
The month with the least rainy days is February (12.5 days).
Average snowfall in September
Kálfafell, Iceland
- Average snowfall in September: 0mm
The month with the highest snowfall is January (209mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Kálfafell, Iceland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (14.1 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kálfafell, Iceland
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 4h and 30min).
- Average sunshine in September: 5h and 24min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Kálfafell, Iceland
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is August (14.3 days).
The month with the least sunshine days is March (8 days).
Average UV index in September
Kálfafell, Iceland
- Average UV index in September: 2
The month with the highest UV index is July (UV index 3).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Kálfafell, Iceland
- Average cloud cover in September: 59
The month with the most cloud cover is March (Cloud cover 61).
The months with the least cloud cover are June and August (Cloud cover 54).
Average visibility in September
Kálfafell, 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, April, May, July, August, September, October, November and December (9km).
