Trondheim
Norway
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Trondheim, Norway

October, the same as September, in Trondheim, Norway, is another chilly autumn month, with average temperature fluctuating between 3°C (37.4°F) and 8°C (46.4°F).

Temperature

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

Rainfall

In October, the rain falls for 23 days. Throughout October, 129mm (5.1") of precipitation is accumulated. Throughout the year, in Trondheim, there are 239 rainfall days, and 1096mm (43.1") of precipitation is accumulated.

Sea temperature

In October, the average sea temperature is 10.9°C (51.6°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

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

Sunshine

In October, the average sunshine is 2h.

UV index

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

What is the temperature in October in Trondheim?

The average high-temperature, in October, in Trondheim, is 8°C (46.4°F), while the average low-temperature is 3°C (37.4°F).

How many days does it rain in October in Trondheim?

In Trondheim, in October, during 23 rainfall days, 129mm (5.1") of precipitation is typically accumulated.

What is the sea water temperature in October in Trondheim?

In Trondheim, Norway, in October, the average water temperature 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.

What is the average length of the day in October in Trondheim?

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

How many hours of sunshine does Trondheim have in October?

The average sunshine in October in Trondheim is 2h.

What is the UV index intensity in October in Trondheim?

In Trondheim, the average daily maximum UV index in October is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the UV radiation.
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).
Coldest months (with the lowest average low temperature) are January and February (-5°C).

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 lowest rainfall) is May (53mm).

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 lowest number of rainy days is May (15 days).

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).

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 shortest days is December (Average daylight: 4.7h).

  • Average sunshine in October: 2h

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

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).