September weather forecastSteinshamn, Norway
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Steinshamn, Norway, with an average temperature ranging between min 11.4°C (52.5°F) and max 13.4°C (56.1°F).Temperature
Steinshamn's September average high-temperature settles at a still mild 13.4°C (56.1°F), showing a near match with the preceding month. Nighttime in Steinshamn, during September, brings an average low of 11.4°C (52.5°F), a modest reduction from the day's peak.Humidity
The average relative humidity in September in Steinshamn is 77%.Rainfall
In Steinshamn, during September, the rain falls for 20.7 days and regularly aggregates up to 111mm (4.37") of precipitation. Throughout the year, there are 219.8 rainfall days, and 1124mm (44.25") of precipitation is accumulated.Snowfall
In Steinshamn, Norway, snow does not fall in June through September.Sea temperature
In Steinshamn, in September, the average water temperature is 13.5°C (56.3°F).Note: With the appropriate swimsuit, one can swim in 13.5°C (56.3°F) even if temperatures dip below 10°C (50°F); otherwise, be ready for cold shock and breath issues. A fleeting swim around 13°C (55.4°F) is distressing.
Daylight
In September, the average length of the day in Steinshamn is 12h and 58min.On the first day of the month, sunrise is at 06:22 and sunset at 20:45. On the last day of September, sunrise is at 07:40 and sunset at 19:07 CEST.
Sunshine
In September, the average sunshine is 6.5h.UV index
In September, the average daily maximum UV index in Steinshamn is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 3 during September translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Steinshamn, Norway
- Average high temperature in September: 13.4°C
The warmest month (with the highest average high temperature) is August (15°C).
The month with the lowest average high temperature is February (4.2°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is February (2.1°C).
Average pressure in September
Steinshamn, Norway
- Average pressure in September: 1010mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1002.5mbar).
Average wind speed in September
Steinshamn, Norway
- Average wind speed in September: 21.6km/h
The windiest month (with the highest average wind speed) is December (28.7km/h).
The calmest month (with the lowest average wind speed) is August (16.9km/h).
Average humidity in September
Steinshamn, Norway
- Average humidity in September: 77%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is November (70%).
Average rainfall in September
Steinshamn, Norway
- Average rainfall in September: 111mm
The wettest month (with the highest rainfall) is December (143mm).
The driest month (with the least rainfall) is June (53mm).
Average rainfall days in September
Steinshamn, Norway
- Average rainfall days in September: 20.7 days
The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is January (15.8 days).
Average snowfall in September
Steinshamn, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is February (127mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Steinshamn, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Steinshamn, Norway
- Average sea temperature in September: 13.5°C
The best month for swimming (with the highest average sea temperature) is August (14.1°C).
The coldest month (with the lowest average sea temperature) is March (5.3°C).
Average daylight in September /
Average sunshine in September
Steinshamn, Norway
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 0min).
The month with the shortest days is December (Average daylight: 5h and 0min).
- Average sunshine in September: 6h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average sunshine days in September
Steinshamn, Norway
- Average sunshine days in September: 7.7 days
The months with the most sunshine days are May and November (10.5 days).
The month with the least sunshine days is December (6.1 days).
Average UV index in September
Steinshamn, Norway
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Steinshamn, Norway
- Average cloud cover in September: 54
The month with the most cloud cover is March (Cloud cover 66).
The month with the least cloud cover is May (Cloud cover 52).
Average visibility in September
Steinshamn, Norway
- 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).





