September weather forecastOtta, Norway

September

Weather in September

September, the first month of the autumn in Otta, is also a frosty month, with temperature in the range of an average high of 9.4°C (48.9°F) and an average low of 1.7°C (35.1°F).

Temperature

September witnesses a gentle descent in average high-temperature, descending from August's moderate 14.1°C (57.4°F) to a frosty 9.4°C (48.9°F). An average low-temperature of 1.7°C (35.1°F) is noted during the nights in September in Otta.

Humidity

The average relative humidity in September in Otta is 82%.

Rainfall

In Otta, in September, it is raining for 15.3 days, with typically 33mm (1.3") of accumulated precipitation. Throughout the year, there are 168.8 rainfall days, and 479mm (18.86") of precipitation is accumulated.

Snowfall

In Otta, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 55min.
On the first day of September, sunrise is at 06:13 and sunset at 20:29. On the last day of the month, sunrise is at 07:27 and sunset at 18:55 CEST.

Sunshine

The average sunshine in September is 7.7h.

UV index

The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 2 during September translates into these guidelines:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.

Frequently asked questions

In September, in Otta, the average high-temperature is 9.4°C (48.9°F), and the average low-temperature is 1.7°C (35.1°F).

In September, the average relative humidity is 82%.

In Otta, in September, during 15.3 rainfall days, 33mm (1.3") of precipitation is typically accumulated.

In Otta, snow does not fall in June through September.

In Otta, in September, it doesn't snow. In October, it regularly snows.

In September, the average day length is 12h and 55min.

In September, on the first day of the month, sunrise is at 06:13 and sunset at 20:29. On the last day of the month, sunrise is at 07:27 and sunset at 18:55 CEST.

The average sunshine duration in September in Otta is 7.7h.

In Otta, the average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Otta, Norway

  • Average high temperature in September: 9.4°C

The warmest month (with the highest average high temperature) is July (15.6°C).
The month with the lowest average high temperature is January (-7.8°C).

  • Average low temperature in September: 1.7°C

The month with the highest average low temperature is July (6.5°C).
The coldest month (with the lowest average low temperature) is January (-14.7°C).

Average pressure in September
Otta, Norway

  • Average pressure in September: 1011.8mbar

The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1006.6mbar).

Average wind speed in September
Otta, Norway

  • Average wind speed in September: 10km/h

The windiest month (with the highest average wind speed) is September (10km/h).
The calmest month (with the lowest average wind speed) is April (8.4km/h).

Average humidity in September
Otta, Norway

  • Average humidity in September: 82%

The months with the highest relative humidity are January, February and March (93%).
The month with the lowest relative humidity is June (71%).

Average rainfall in September
Otta, Norway

  • Average rainfall in September: 33mm

The wettest month (with the highest rainfall) is July (70mm).
The driest month (with the least rainfall) is April (24mm).

Average rainfall days in September
Otta, Norway

  • Average rainfall days in September: 15.3 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in September
Otta, Norway

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (225mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Otta, Norway

  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is December (21.4 days).
The months with the least snowfall days are July and August (0 days).

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

  • Average daylight in September: 12h and 54min

The month with the longest days is June (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 5h and 24min).

  • Average sunshine in September: 7h and 42min

The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).

Average sunshine days in September
Otta, Norway

  • Average sunshine days in September: 9.7 days

The month with the most sunshine days is October (11.2 days).
The month with the least sunshine days is July (6.9 days).

Average UV index in September
Otta, Norway

  • Average UV index in September: 2

The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are January, February, April, October, November and December (UV index 1).

Average cloud cover in September
Otta, Norway

  • Average cloud cover in September: 51

The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is June (Cloud cover 46).

Average visibility in September
Otta, Norway

  • Average visibility in September: 8km

The months with the highest visibility are June and July (9km).
The months with the lowest visibility are January, February, March, April and November (6km).