The best times to visit Karmoy for ideal weather are

June 4th to September 30th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Karmoy Travel Info

Weather in Karmoy


Average temperatures in Karmoy vary somewhat. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 19th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Karmoy, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 64.5°F (18.1°C) with temperatures rarely dropping below 57.2°F (14°C) at night.

Karmoy Temperatures (Fahrenheit)


Karmoy Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Karmoy Perceived Temperature (F)


Karmoy Perceived Temperature (C)



Average Karmoy Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 39.6 37.3 34.3
Feb 38.8 36.5 33.7
Mar 41.9 39 36.2
Apr 46.8 42.9 39.6
May 52.8 48.6 44.9
Jun 58 53.6 49.9
Jul 62.3 58.4 55.1
Aug 62.6 58.8 55.5
Sep 58.5 55.4 52.3
Oct 51.9 49.5 46.6
Nov 46.5 44.2 41.2
Dec 42.3 39.9 36.8

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 4.2 2.9 1.3
Feb 3.8 2.5 0.9
Mar 5.5 3.9 2.3
Apr 8.2 6.1 4.2
May 11.6 9.2 7.2
Jun 14.4 12 9.9
Jul 16.8 14.7 12.8
Aug 17 14.9 13.1
Sep 14.7 13 11.3
Oct 11.1 9.7 8.1
Nov 8.1 6.8 5.1
Dec 5.7 4.4 2.7



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Karmoy are June, May, and then April. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early June. For example, on the week of June 4th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid January with an average of 4 days of significant precipitation the week of January 8th.

When can you find snow in Karmoy? Weather stations report a good amount of seasonal snow likely to be deepest around December, especially close to late December. The best time to ski (if at all) in Karmoy is often around around January 15th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Karmoy.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Karmoy (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 44% 1.1 4.8
Feb 41% 2.2 3.7
Mar 29% 1.9 3.4
Apr 20% 0.6 2
May 20% 0.4 1.7
Jun 14% 0 2.2
Jul 28% 0.4 3.5
Aug 35% 0 4.2
Sep 33% 1.2 3.9
Oct 37% 0 4
Nov 44% 0.5 5.1
Dec 41% 4.5 4.1

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 44 2.8 12.2
Feb 41 5.6 9.4
Mar 29 4.8 8.6
Apr 20 1.5 5.1
May 20 1 4.3
Jun 14 0 5.6
Jul 28 1 8.9
Aug 35 0 10.7
Sep 33 3 9.9
Oct 37 0 10.2
Nov 44 1.3 13
Dec 41 11.4 10.4


Humidity and Wind

Karmoy has some very humid months, and high humidity throughout the year. The least humid month is October (71.2% relative humidity), and the most humid month is July (78.2%).

Wind in Karmoy is usually stronger than many places. The windiest month is January, followed by October and November. January’s average wind speed of around 19.3 knots (22.2 MPH or 35.7 KPH) is considered “a fresh breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late October where average top sustained speeds reach 29.7 knots, which is considered high wind or moderate gale winds.

Relative Humidity (%)

The graph below shows the average % humidity by month in Karmoy.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 19.3 Strong breeze 28.2 Moderate gale winds
Feb 17.4 Strong breeze 25.5 Very strong breeze
Mar 15.6 Significant breeze 23.6 Moderate gale winds
Apr 14.1 Significant breeze 20.7 Strong breeze
May 14.7 Significant breeze 21.3 Moderate gale winds
Jun 13.3 Significant breeze 19.5 Strong breeze
Jul 13 Significant breeze 19.3 Moderate gale winds
Aug 14.4 Significant breeze 21 Strong breeze
Sep 15.9 Significant breeze 22.9 Moderate gale winds
Oct 18 Strong breeze 26 Very strong breeze
Nov 17.7 Strong breeze 25.7 Moderate gale winds
Dec 17 Strong breeze 26.1 Very strong breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 73.2%
Feb 77.4%
Mar 77.3%
Apr 76.2%
May 75%
Jun 75%
Jul 78.2%
Aug 75%
Sep 74%
Oct 71.2%
Nov 72.2%
Dec 75.1%


Is it Safe to Travel to Karmoy?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Norway; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Karmoy, Norway is March, followed by June and July. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Karmoy in October. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 1.1 in October means 1.1% of the tourists vs. March.



Overall Karmoy Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 57°F (13.9°C) and 40.5°F (4.7°C) with warmer temperatures in the later months. Rain is somewhat common with 6 to 9 days of significant precipitation per month. Spring is the busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have comfortably cool weather with high temperatures that are brisk. These months see moderate precipitation with 4 to 11 days of precipitation per month. June – August is the second busiest season for tourism in Karmoy, so lodging and other accommodations may cost slightly more.

Fall (September through November)

Fall daily highs range from 60.4°F (15.8°C) and 43°F (6.1°C), which will feel chilly given the humidity and wind. It rains or snows a good amount: 10 to 13 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is too cold this time of year in Karmoy to be enjoyable for warm weather travelers. The average high during this season is between 43.1°F (6.2°C) and 38.3°F (3.5°C). On average, it rains or snows a great amount: 12 to 13 times per month. These times of year are fairly slow with tourists.


Best Times to TravelOslo City Centre, Norway › Karmoy, Norway