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
Weather in September
Temperature
Stepping into September, Hammerfest records an average high-temperature of a frosty 9.4°C (48.9°F), almost consistent with August. In Hammerfest, September nights maintain a consistent temperature, with an average low of 6.8°C (44.2°F).Humidity
In September, the average relative humidity in Hammerfest is 81%.Rainfall
September and December are months with the least rain when the rain falls for 13.1 days and typically aggregates up to 33mm (1.3") of rain.Snowfall
Months with snowfall in Hammerfest 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 17mm (0.67") of snow. In Hammerfest, during the entire year, snow falls for 96.3 days and aggregates up to 928mm (36.54") of snow.Sea temperature
In Hammerfest, the average seawater temperature in September is 9.3°C (48.7°F).Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.
Daylight
The average length of the day in September is 13h and 25min.On the first day of the month, sunrise is at 04:39 and sunset at 20:11. On the last day of September, in Hammerfest, sunrise is at 06:40 and sunset at 17:50 CEST.
Sunshine
In September, the average sunshine is 5.9h.UV index
The average daily maximum UV index in September in Hammerfest, Norway, is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 2 turns into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Enhance your sun protection with tightly woven, yet airy clothing. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What is the temperature in September in Hammerfest?
What is the average humidity in September in Hammerfest?
What is the driest month in Hammerfest?
How much does it rain in Hammerfest in September?
When does it start to snow in Hammerfest?
What is the sea water temperature in September in Hammerfest?
What is the average length of the day in September in Hammerfest?
When are sunrise and sunset in September in Hammerfest?
How long on average sun shines in September in Hammerfest?
What is the UV index intensity in September in Hammerfest?
Average temperature in September
Hammerfest, Norway
- Average high temperature in September: 9.4°C
The warmest month (with the highest average high temperature) is July (12.7°C).
The months with the lowest average high temperature are January and February (-2.3°C).
- Average low temperature in September: 6.8°C
The month with the highest average low temperature is July (9.1°C).
The coldest month (with the lowest average low temperature) is February (-5.8°C).
Average pressure in September
Hammerfest, Norway
- Average pressure in September: 1009mbar
The month with the highest atmospheric pressure is May (1013.8mbar).
The month with the lowest atmospheric pressure is December (1000.5mbar).
Average wind speed in September
Hammerfest, Norway
- Average wind speed in September: 19km/h
The windiest month (with the highest average wind speed) is March (25.3km/h).
The calmest month (with the lowest average wind speed) is July (15.4km/h).
Average humidity in September
Hammerfest, Norway
- Average humidity in September: 81%
The months with the highest relative humidity are April and May (83%).
The months with the lowest relative humidity are March and June (79%).
Average rainfall in September
Hammerfest, Norway
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is March (47mm).
The driest months (with the least rainfall) are September and December (33mm).
Average rainfall days in September
Hammerfest, Norway
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is June (18.5 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in September
Hammerfest, Norway
- Average snowfall in September: 17mm
The month with the highest snowfall is March (145mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Hammerfest, Norway
- Average snowfall days in September: 1.3 days
The month with the highest number of snowfall days is March (16.8 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature in September
Hammerfest, Norway
- Average sea temperature in September: 9.3°C
The best month for swimming (with the highest average sea temperature) is August (10.6°C).
The coldest months (with the lowest average sea temperature) are February and March (4.8°C).
Average daylight in September /
Average sunshine in September
Hammerfest, Norway
- Average daylight in September: 13h and 2min
The month with the longest days is August (Average daylight: 18h and 30min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).
- Average sunshine in September: 5h and 5min
The month with the most sunshine is August (Average sunshine: 8h and 0min).
The month with the least sunshine is December (Average sunshine: 0h and 18min).
Average sunshine days in September
Hammerfest, Norway
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in September
Hammerfest, 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 February, March, October and November (UV index 1).
Average cloud cover in September
Hammerfest, Norway
- Average cloud cover in September: 60
The month with the most cloud cover is March (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 59).
Average visibility in September
Hammerfest, Norway
- Average visibility in September: 9km
The months with the highest visibility are January, February, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are March and April (8km).
Hammerfest, Norway
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