Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The beginning of September brings a slight decrease in the average high-temperature, transitioning from a pleasant 21.2°C (70.2°F) in August to a refreshing 16.8°C (62.2°F). Gamleby's nighttime temperature during September is consistently averaged at a cool 10.5°C (50.9°F).Humidity
The average relative humidity in September in Gamleby is 77%.Rainfall
In Gamleby, in September, during 9.2 rainfall days, 12mm (0.47") of precipitation is typically accumulated. In Gamleby, during the entire year, the rain falls for 108.3 days and collects up to 213mm (8.39") of precipitation.Snowfall
In Gamleby, Sweden, snow does not fall in June through September.Daylight
In Gamleby, the average length of the day in September is 12h and 48min.On the first day of the month, sunrise is at 05:55 and sunset at 19:52. On the last day of September, in Gamleby, sunrise is at 06:57 and sunset at 18:30 CEST.
Sunshine
The average sunshine in September is 8.4h.UV index
In Gamleby, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Make use of precautions - It is urged to ward off sun damage. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Gamleby in September?
What is the average humidity in September in Gamleby?
How many days does it rain in September in Gamleby?
When it does not snow in Gamleby?
Does it snow in Gamleby in September?
How many hours of daylight does Gamleby have in September?
When are sunrise and sunset in September in Gamleby?
How long on average sun shines in September in Gamleby?
What is the UV index intensity in September in Gamleby?
Average temperature in September
Gamleby, Sweden
- Average high temperature in September: 16.8°C
The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (0.9°C).
- Average low temperature in September: 10.5°C
The months with the highest average low temperature are July and August (13.3°C).
The coldest month (with the lowest average low temperature) is February (-2.2°C).
Average pressure in September
Gamleby, Sweden
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1009.3mbar).
Average wind speed in September
Gamleby, Sweden
- Average wind speed in September: 15.2km/h
The windiest month (with the highest average wind speed) is December (17.6km/h).
The calmest month (with the lowest average wind speed) is May (13km/h).
Average humidity in September
Gamleby, Sweden
- Average humidity in September: 77%
The months with the highest relative humidity are February and November (87%).
The months with the lowest relative humidity are May and June (70%).
Average rainfall in September
Gamleby, Sweden
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is August (27mm).
The driest month (with the least rainfall) is April (7mm).
Average rainfall days in September
Gamleby, Sweden
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (12.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Gamleby, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is February (64mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Gamleby, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Gamleby, Sweden
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in September
Gamleby, Sweden
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is April (19.7 days).
The month with the least sunshine days is February (14.1 days).
Average UV index in September
Gamleby, Sweden
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Gamleby, Sweden
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Gamleby, Sweden
- Average visibility in September: 9km
The months with the highest visibility are April, June and August (10km).
The months with the lowest visibility are January, February, March, May, July, September, October, November and December (9km).
