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 sea temperature 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
Mehamn records an average high-temperature of a frosty 9.2°C (48.6°F) in September, closely mirroring the climate of the previous month. Mehamn notes a steady average temperature of 6.5°C (43.7°F) during the nights of September.Humidity
In Mehamn, Norway, the average relative humidity in September is 82%.Rainfall
September is the month with the least rainfall in Mehamn. Rain falls for 15.7 days and accumulates 33mm (1.3") of precipitation.Snowfall
Months with snowfall in Mehamn are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 1.3 snowfall days, it receives 12mm (0.47") of snow. In Mehamn, during the entire year, snow falls for 115.4 days and aggregates up to 942mm (37.09") of snow.Sea temperature
In Mehamn, in September, the average water temperature is 9°C (48.2°F).Note: Swimming in 9°C (48.2°F) poses a severe threat. Even short exposure to 13°C (55.4°F) is chilling, and going below 10°C (50°F) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In September, the average length of the day in Mehamn is 13h and 26min.On the first day of the month, sunrise is at 04:20 and sunset at 19:56. On the last day of September, sunrise is at 06:23 and sunset at 17:33 CEST.
Sunshine
In Mehamn, the average sunshine in September is 4.7h.UV index
In September, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 2 turns into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. To guard against the harmful effects of the Sun, minimize exposure during midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Mehamn in September?
What is the average humidity in September in Mehamn?
What is the driest month in Mehamn?
How many days does it rain in September in Mehamn?
When does it start snowing in Mehamn?
How cold is the water in September in Mehamn?
What is the average length of the day in September in Mehamn?
When is the sunrise / sunset in September in Mehamn?
How long on average sun shines in September in Mehamn?
What is the UV index intensity in September in Mehamn?
Average temperature in September
Mehamn, Norway
- Average high temperature in September: 9.2°C
The warmest month (with the highest average high temperature) is July (12.3°C).
The month with the lowest average high temperature is February (-2.4°C).
- Average low temperature in September: 6.5°C
The month with the highest average low temperature is July (8.5°C).
The coldest month (with the lowest average low temperature) is February (-6.2°C).
Average pressure in September
Mehamn, Norway
- Average pressure in September: 1009.2mbar
The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1000.7mbar).
Average wind speed in September
Mehamn, Norway
- Average wind speed in September: 21.6km/h
The windiest month (with the highest average wind speed) is March (28.1km/h).
The calmest month (with the lowest average wind speed) is July (18.1km/h).
Average humidity in September
Mehamn, Norway
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are March and June (79%).
Average rainfall in September
Mehamn, Norway
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is November (47mm).
The driest month (with the least rainfall) is September (33mm).
Average rainfall days in September
Mehamn, Norway
- Average rainfall days in September: 15.7 days
The month with the highest number of rainy days is June (18.4 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Mehamn, Norway
- Average snowfall in September: 12mm
The month with the highest snowfall is January (148mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Mehamn, Norway
- Average snowfall days in September: 1.3 days
The month with the highest number of snowfall days is March (17.2 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature in September
Mehamn, Norway
- Average sea temperature in September: 9°C
The best month for swimming (with the highest average sea temperature) is August (9.8°C).
The coldest month (with the lowest average sea temperature) is March (4.2°C).
Average daylight in September /
Average sunshine in September
Mehamn, Norway
- Average daylight in September: 13h and 2min
The month with the longest days is August (Average daylight: 18h and 48min).
The months with the shortest days are June, July and December (Average daylight: 0h and 0min).
- Average sunshine in September: 4h and 4min
The month with the most sunshine is August (Average sunshine: 6h and 12min).
The months with the least sunshine are June and December (Average sunshine: 0h and 18min).
Average sunshine days in September
Mehamn, Norway
- Average sunshine days in September: 10.6 days
The month with the most sunshine days is July (10.8 days).
The month with the least sunshine days is October (7 days).
Average UV index in September
Mehamn, Norway
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Mehamn, Norway
- Average cloud cover in September: 66
The month with the most cloud cover is April (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 65).
Average visibility in September
Mehamn, Norway
- Average visibility in September: 9km
The months with the highest visibility are May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February, March, April and December (8km).
