October weather forecast
Trondheim, Norway

Weather in October

October, like September, is a frosty autumn month in Trondheim, Norway, with average temperature ranging between min 3°C (37.4°F) and max 8°C (46.4°F).

Temperature

In October, the average high-temperature marginally drops, from a fresh 12°C (53.6°F) in September, to a frosty 8°C (46.4°F). The average low-temperature, in Trondheim, Norway, is 3°C (37.4°F).

Rainfall

In Trondheim, during October, the rain falls for 23 days and regularly aggregates up to 129mm (5.08") of precipitation. In Trondheim, Norway, during the entire year, the rain falls for 239 days and collects up to 1096mm (43.15") of precipitation.

Sea temperature

In Trondheim, the average seawater temperature in October is 10.9°C (51.6°F).
Note: Swimming in 10.9°C (51.6°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In October, the average length of the day in Trondheim, Norway, is 9.8h.

Sunshine

The average sunshine in October is 2h.

UV index

In October, the average daily maximum UV index in Trondheim is 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 1 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

How many days does it rain in October in Trondheim?

In October, in Trondheim, Norway, the rain falls for 23 days. Throughout October, 129mm (5.08") of precipitation is accumulated.

What is the water temperature in October in Trondheim?

In October, the average sea temperature in Trondheim, Norway, is 10.9°C (51.6°F). Swimming in 10.9°C (51.6°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Trondheim have in October?

The average length of the day in October in Trondheim is 9.8h.

How long on average sun shines in October in Trondheim?

In October, the average sunshine in Trondheim is 2h.

How high is the UV index in October in Trondheim?

In Trondheim, the average daily maximum UV index in October is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from the exposure to the Sun's UV rays.

Average temperature in October
Trondheim, Norway

Average temperature in October - Trondheim, Norway
  • Average high temperature in October: 8°C

The warmest month (with the highest average high temperature) is August (17°C).
Months with the lowest average high temperature are January and February (0°C).

  • Average low temperature in October: 3°C

Months with the highest average low temperature are July and August (9°C).
The coldest months (with the lowest average low temperature) are January and February (-5°C).

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Average rainfall in October
Trondheim, Norway

Average rainfall in October - Trondheim, Norway
  • Average rainfall in October: 129mm

The wettest month (with the highest rainfall) is September (133mm).
The driest month (with the least rainfall) is May (53mm).

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Average rainfall days in October
Trondheim, Norway

Average rainfall days in October - Trondheim, Norway
  • Average rainfall days in October: 23 days

Months with the highest number of rainy days are September and December (24 days).
The month with the least rainy days is May (15 days).

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Average sea temperature in October
Trondheim, Norway

Average sea temperature in October - Trondheim, Norway
  • Average sea temperature in October: 10.9°C

The best month for swimming (with the highest average sea temperature) is August (14.8°C).
The coldest month (with the lowest average sea temperature) is March (4.9°C).

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Average daylight in October /
Average sunshine in October
Trondheim, Norway

Average daylight in October / Average sunshine in October - Trondheim, Norway
  • Average daylight in October: 9.8h

The month with the longest days is June (Average daylight: 20.4h).
The month with the shortest days is December (Average daylight: 4.7h).

  • Average sunshine in October: 2h

Months with the most sunshine are May and June (Average sunshine: 7h).
Months with the least sunshine are January and December (Average sunshine: 0).

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Average UV index in October
Trondheim, Norway

Average UV index in October - Trondheim, Norway
  • Average UV index in October: 1

Months with the highest UV index are June and July (UV index 4).
Months with the lowest UV index are January, February, November and December (UV index 0).

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