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
Grönsvik's progression into September involves a minor drop in the average high-temperature, slightly receding from a comfortable 17.4°C (63.3°F) in August to a mild 13.7°C (56.7°F). Nighttime temperature in Grönsvik reflects an average dip to a chilly 9.5°C (49.1°F) in September, subtly cooler than its daytime highs.Humidity
The average relative humidity in September is 78%.Rainfall
In Grönsvik, during September, the rain falls for 8.8 days and regularly aggregates up to 23mm (0.91") of precipitation. In Grönsvik, during the entire year, the rain falls for 93.9 days and collects up to 304mm (11.97") of precipitation.Snowfall
In Grönsvik, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 58min.On the first day of the month, sunrise is at 05:37 and sunset at 19:58. On the last day of September, in Grönsvik, sunrise is at 06:54 and sunset at 18:21 CEST.
Sunshine
In September, the average sunshine is 8.2h.UV index
The average daily maximum UV index in September in Grönsvik, Sweden, is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 3 during September translates into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Grönsvik in September?
What is the average humidity in September in Grönsvik?
How much does it rain in Grönsvik in September?
When it does not snow in Grönsvik?
Does it snow in Grönsvik in September?
How many hours of daylight does Grönsvik have in September?
What time are sunrise and sunset in September in Grönsvik?
How long on average sun shines in September in Grönsvik?
How high is the UV index in September in Grönsvik?
Average temperature in September
Grönsvik, Sweden
- Average high temperature in September: 13.7°C
The warmest month (with the highest average high temperature) is July (18.2°C).
The month with the lowest average high temperature is February (-1.8°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is February (-5°C).
Average pressure in September
Grönsvik, Sweden
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1005.8mbar).
Average wind speed in September
Grönsvik, Sweden
- Average wind speed in September: 15.7km/h
The windiest month (with the highest average wind speed) is December (18.8km/h).
The calmest months (with the lowest average wind speed) are May and August (13.9km/h).
Average humidity in September
Grönsvik, Sweden
- Average humidity in September: 78%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is June (71%).
Average rainfall in September
Grönsvik, Sweden
- Average rainfall in September: 23mm
The wettest months (with the highest rainfall) are January and December (36mm).
The driest months (with the least rainfall) are April and June (15mm).
Average rainfall days in September
Grönsvik, Sweden
- Average rainfall days in September: 8.8 days
The month with the highest number of rainy days is July (10.4 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Grönsvik, Sweden
- Average snowfall in September: 0mm
The month with the highest snowfall is January (150mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Grönsvik, Sweden
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grönsvik, Sweden
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 19h and 54min).
The month with the shortest days is December (Average daylight: 5h and 6min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is June (Average sunshine: 13h and 6min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in September
Grönsvik, Sweden
- Average sunshine days in September: 19.9 days
The month with the most sunshine days is June (21.8 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in September
Grönsvik, Sweden
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in September
Grönsvik, Sweden
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in September
Grönsvik, Sweden
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August, September and October (10km).
The month with the lowest visibility is January (8km).
