September weather forecastSkaftafell, Iceland
September
Weather in September
September ushers in Autumn, with a noticeable decrease in temperatures in Skaftafell. Monthly lows return to a cooler 4.4°C (39.9°F) from the warmer 6.6°C (43.9°F) recorded in August, and highs hover around 7.9°C (46.2°F). Rainfall measures increase, and humidity levels begin to rise, making the air feel cooler. As the leaves change color, the landscapes offer scenic beauty unmatched to any other time of the year.Temperature
With the onset of September, the average high-temperature registers at a chilly 7.9°C (46.2°F), subtly different from August's 10.4°C (50.7°F). Skaftafell's average low temperature, barely cooler than the daytime high, steadies at an icy 4.4°C (39.9°F) during September.Humidity
With an average relative humidity of 83%, September is the most humid month.Rainfall
In September, the rain falls for 20.1 days. Throughout September, 102mm (4.02") of precipitation is accumulated. In Skaftafell, during the entire year, the rain falls for 187.1 days and collects up to 1193mm (46.97") of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 13h and 0min.On the first day of September, sunrise is at 05:52 and sunset at 20:22. On the last day of the month, sunrise is at 07:15 and sunset at 18:39 GMT.
Sunshine
In Skaftafell, the average sunshine in September is 5.4h.UV index
In Skaftafell, Iceland, the average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 2 transforms into these recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Skaftafell, 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
Skaftafell, 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
Skaftafell, 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
Skaftafell, 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
Skaftafell, 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
Skaftafell, 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
Skaftafell, 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
Skaftafell, 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
Skaftafell, Iceland
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 4h and 24min).
- 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
Skaftafell, 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
Skaftafell, 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
Skaftafell, 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
Skaftafell, 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).
