September weather forecastHemnesberget, Norway

September

Weather in September

The first month of the autumn, September, is still a chilly month in Hemnesberget, Norway, with temperature in the range of an average low of 3.5°C (38.3°F) and an average high of 9°C (48.2°F).

Temperature

September signifies a minor drop in average high-temperature, transitioning from a refreshing 13.5°C (56.3°F) in August to a chilly 9°C (48.2°F). Throughout the September nights, Hemnesberget encounters a low-temperature of 3.5°C (38.3°F).

Humidity

In Hemnesberget, the average relative humidity in September is 86%.

Rainfall

In September, the rain falls for 20.1 days. Throughout September, 110mm (4.33") of precipitation is accumulated. Throughout the year, there are 180.5 rainfall days, and 1279mm (50.35") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, there are 116.7 snowfall days, and 3043mm (119.8") of snow is accumulated.

Sea temperature

In Hemnesberget, in September, the average water temperature is 11.9°C (53.4°F).
Note: Engaging in a swim in 11.9°C (53.4°F) can threaten life. Brief exposure to 13°C (55.4°F) waters is uneasy, and submersion below 10°C (50°F) can lead to cold shock and disrupted breathing patterns, varying by individual.

Daylight

In Hemnesberget, the average length of the day in September is 13h and 7min.
On the first day of September, sunrise is at 05:41 and sunset at 20:28. On the last day of the month, sunrise is at 07:14 and sunset at 18:35 CEST.

Sunshine

The average sunshine in September is 4.9h.

UV index

The months with the lowest UV index are January, March, April, September through December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 1 in September transforms into this advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Updated: Jul 6, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In September, the average high-temperature and low-temperature are 9°C (48.2°F) and 3.5°C (38.3°F) respectively.

The average relative humidity in September is 86%.

In Hemnesberget, during September, the rain falls for 20.1 days and regularly aggregates up to 110mm (4.33") of precipitation.

September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow.

In September, the average sea temperature is 11.9°C (53.4°F). Swimming in 11.9°C (53.4°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

In September, the average day length is 13h and 7min.

In September, on the first day of the month, sunrise is at 05:41 and sunset at 20:28. On the last day of the month, sunrise is at 07:14 and sunset at 18:35 CEST.

In Hemnesberget, the average sunshine duration in September is 4.9h.

January, March, April, September through December, with an average maximum UV index of 1, are months with the lowest UV index.

The average daily maximum UV index in September is 1. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

13.5°C

9°C

2.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

9.8km/h

11.2km/h

12.2km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.1

6.2

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

7.6

8.5

9.9

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Hemnesberget, Norway

Average high temperature in September: 9°C

The warmest month (with the highest average high temperature) is July (14.8°C).
The month with the lowest average high temperature is January (-6.7°C).

Average low temperature in September: 3.5°C

The month with the highest average low temperature is July (7.9°C).
The coldest month (with the lowest average low temperature) is February (-11.8°C).

Average pressure in September
Hemnesberget, 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 (1002.7mbar).

Average wind speed in September
Hemnesberget, Norway

Average wind speed in September: 10.8km/h

The windiest month (with the highest average wind speed) is January (14.1km/h).
The calmest month (with the lowest average wind speed) is August (9.1km/h).

Average humidity in September
Hemnesberget, Norway

Average humidity in September: 86%

The month with the highest relative humidity is April (93%).
The month with the lowest relative humidity is July (77%).

Average rainfall in September
Hemnesberget, Norway

Average rainfall in September: 110mm

The wettest month (with the highest rainfall) is March (160mm).
The driest month (with the least rainfall) is June (69mm).

Average rainfall days in September
Hemnesberget, Norway

Average rainfall days in September: 20.1 days

The month with the highest number of rainy days is August (21.2 days).
The month with the least rainy days is February (6.9 days).

Average snowfall in September
Hemnesberget, Norway

Average snowfall in September: 1mm

The month with the highest snowfall is March (626mm).
The months with the least snowfall are June, July and August (0mm).

Average snowfall days in September
Hemnesberget, Norway

Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is March (21.7 days).
The months with the least snowfall days are July and August (0 days).

Average sea temperature in September
Hemnesberget, Norway

Average sea temperature in September: 11.9°C

The best month for swimming (with the highest average sea temperature) is July (13.8°C).
The coldest month (with the lowest average sea temperature) is March (3.8°C).

Average daylight in September /
Average sunshine in September
Hemnesberget, Norway

Average daylight in September: 13h and 6min

The month with the longest days is May (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 3h and 0min).

Average sunshine in September: 4h and 54min

The month with the most sunshine is July (Average sunshine: 7h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).

Average sunshine days in September
Hemnesberget, Norway

Average sunshine days in September: 8.5 days

The month with the most sunshine days is October (9.9 days).
The month with the least sunshine days is March (7 days).

Average UV index in September
Hemnesberget, Norway

Average UV index in September: 1

The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, March, April, September, October, November and December (UV index 1).