The best times to visit Osteroy for ideal weather are

May 28th to September 23rd

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



Other Osteroy Travel Info

Weather in Osteroy


Average temperatures in Osteroy vary greatly. 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 18th 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 Osteroy, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 69.1°F (20.6°C) with temperatures rarely dropping below 56.2°F (13.4°C) at night.

Osteroy Temperatures (Fahrenheit)


Osteroy 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.

Osteroy Perceived Temperature (F)


Osteroy Perceived Temperature (C)



Average Osteroy 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 37.6 33.9 30.4
Feb 39.6 35.6 32.3
Mar 43.9 38.4 34.2
Apr 49.6 42.8 37.8
May 57.5 50.1 44.6
Jun 63.1 55.6 50
Jul 65.3 58.4 53.8
Aug 64.7 58 53.4
Sep 59.8 54 50
Oct 51.9 47.2 43.6
Nov 45.7 41.9 38.3
Dec 41.9 38 33.9

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 3.1 1.1 -0.9
Feb 4.2 2 0.2
Mar 6.6 3.6 1.2
Apr 9.8 6 3.2
May 14.2 10.1 7
Jun 17.3 13.1 10
Jul 18.5 14.7 12.1
Aug 18.2 14.4 11.9
Sep 15.4 12.2 10
Oct 11.1 8.4 6.4
Nov 7.6 5.5 3.5
Dec 5.5 3.3 1.1



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Osteroy are June, September, and then October. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid October. For example, on the week of October 15th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in mid December with an average of 5 days of significant precipitation the week of December 17th.

When can you find snow in Osteroy? Weather stations report no annual snow. 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 Osteroy.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 48% 0 9.9
Feb 45% 0 6.7
Mar 51% 0 8.9
Apr 40% 0 7.6
May 40% 0 6.2
Jun 32% 0 4.5
Jul 43% 0 5.9
Aug 41% 0 7.8
Sep 33% 0 5.6
Oct 34% 0 9.2
Nov 47% 0 11.2
Dec 58% 0 14.7

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 48 0 25.1
Feb 45 0 17
Mar 51 0 22.6
Apr 40 0 19.3
May 40 0 15.7
Jun 32 0 11.4
Jul 43 0 15
Aug 41 0 19.8
Sep 33 0 14.2
Oct 34 0 23.4
Nov 47 0 28.4
Dec 58 0 37.3


Humidity and Wind

Osteroy has some very humid months, with other comfortably humid months. The least humid month is March (55.7% relative humidity), and the most humid month is September (71.1%).

Wind in Osteroy is usually calm. The windiest month is December, followed by January and March. December’s average wind speed of around 7.1 knots (8.2 MPH or 13.2 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late December where average top sustained speeds reach 14.1 knots, which is considered a moderate breeze.

Relative Humidity (%)

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

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 6.5 Light breeze 11 Significant breeze
Feb 5.8 Light breeze 9.7 Gentle breeze
Mar 6 Light breeze 10.3 Significant breeze
Apr 5.3 Light breeze 9 Gentle breeze
May 4.7 Light breeze 8.1 Significant breeze
Jun 4.1 Light breeze 6.9 Light breeze
Jul 4 Light breeze 7 Significant breeze
Aug 4 Light breeze 7.4 Gentle breeze
Sep 4.6 Light breeze 8.4 Significant breeze
Oct 5.3 Light breeze 9.5 Gentle breeze
Nov 5.4 Light breeze 10.4 Significant breeze
Dec 7.1 Gentle breeze 12.6 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 62.2%
Feb 65.8%
Mar 55.7%
Apr 55.7%
May 58.8%
Jun 61.7%
Jul 69.9%
Aug 69.4%
Sep 71.1%
Oct 66%
Nov 69%
Dec 69%


Is it Safe to Travel to Osteroy?

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 Osteroy, Norway is May, followed by July and January. 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 Osteroy in February. 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 65.1 in February means 65.1% of the tourists vs. May.



Overall Osteroy Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 63°F (17.2°C) and 42°F (5.6°C) with warmer temperatures in the later months. Rain is frequent with 12 to 16 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 10 to 13 days of precipitation per month. June – August is the second busiest season for tourism in Osteroy, so lodging and other accommodations may cost slightly more.

Fall (September through November)

Fall daily highs range from 63.4°F (17.4°C) and 42.2°F (5.7°C), which will feel chilly given the humidity and wind. It rains or snows a good amount: 10 to 14 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

Winter (December through February)

Weather is too cold this time of year in Osteroy to be enjoyable for warm weather travelers. The average high during this season is between 44.1°F (6.7°C) and 31.9°F (-0.1°C). On average, it rains or snows a very great amount: 13 to 18 times per month. These times of year are the slowest with tourists.


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