October weather forecast
Trondheim, Norway

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Weather in October

October is saturated with crisp autumn air and rapidly shortening days in Trondheim. The drop in temperatures continues from September, now ranging between 3°C and 8°C. The already high rainfall in September continues its course into October, keeping the city relatively moist. The daylight hours continue to wane, with the days becoming increasingly shorter. As the month ends, all signs point towards this: winter is coming.

Temperature

With the beginning of October, the average high-temperature in Trondheim shows a small decrease, transitioning from a fresh 12°C in September to a chilly 8°C. Trondheim's October nights demonstrate minimal variation from the daytime temperatures, with an average of 3°C.

Rainfall

In Trondheim, in October, it is raining for 23 days, with typically 129mm of accumulated precipitation. Throughout the year, in Trondheim, there are 239 rainfall days, and 1096mm of precipitation is accumulated.

Sea temperature

In October, the average sea temperature is 10.9°C.
Note: To swim in 10.9°C at less than 10°C, ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 13°C is not welcoming.

Daylight

In October, the average length of the day in Trondheim, Norway, is 9h and 49min.
On the first day of the month, sunrise is at 07:26 and sunset at 18:50 CEST. On the last day of October, sunrise is at 07:53 and sunset at 16:10 CET.
Note: On Sunday, 29. October 2023, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. Daylight Saving Time starts again on Sunday, 31. March 2024, at 02:00; consequently, the time zone reverts from CET to CEST.

Sunshine

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

UV index

The average daily maximum UV index in October is 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: A daily high UV index of 1 in October leads to these guidelines:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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FAQ

What is the temperature in October in Trondheim?

The high-temperature, in October, in Trondheim, records 8°C, while the low-temperature is 3°C.

How many days does it rain in October in Trondheim?

In Trondheim, during October, the rain falls for 23 days and regularly aggregates up to 129mm of precipitation.

What is the water temperature in October in Trondheim?

In October, the average sea temperature in Trondheim is 10.9°C. At temperatures below 10°C, 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 is not comfortable.

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

The average day length in October is 9h and 49min.

What time are sunrise and sunset in October in Trondheim?

On the first day of October in Trondheim, sunrise is at 07:26 and sunset at 18:50 CEST. On the last day of the month, sunrise is at 07:53 and sunset at 16:10 CET.

When does Daylight Saving Time (DST) end in October in Trondheim?

On Sunday, 29. October 2023, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. The next DST starts on Sunday, 31. March 2024, at 02:00.

How many hours of sunshine does Trondheim have in October?

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

How high is the UV index in October in Trondheim?

The average daily maximum UV index in October is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average UV index

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).
The months with the lowest average high temperature are January and February (0°C).

  • Average low temperature in October: 3°C

The 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

The 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: 9h and 5min

The month with the longest days is June (Average daylight: 20h and 24min).
The month with the shortest days is December (Average daylight: 4h and 42min).

  • Average sunshine in October: 2h

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

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Average UV index in October
Trondheim, Norway

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

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

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Trondheim, Norway

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