The best times to visit Jamsa for ideal weather are

May 28th to September 16th

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



Other Jamsa Travel Info

Weather in Jamsa


Average temperatures in Jamsa vary drastically. Considering humidity, temperatures feel cold for most of the year with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 26th 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 Jamsa, 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 74.6°F (23.7°C) with temperatures rarely dropping below 55.2°F (12.9°C) at night.

Jamsa Temperatures (Fahrenheit)


Jamsa 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.

Jamsa Perceived Temperature (F)


Jamsa Perceived Temperature (C)



Average Jamsa 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 24.4 18.7 12.2
Feb 25.1 19.3 12.4
Mar 35.4 28.1 19.3
Apr 47.1 38.4 28.7
May 60.2 50.5 39.1
Jun 66.7 57.2 46.3
Jul 72.1 63.1 53.2
Aug 68.2 59.6 50
Sep 57.6 50.5 42.8
Oct 45.3 40.1 34.2
Nov 37 33.1 28.6
Dec 29.4 25 19.9

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -4.2 -7.4 -11
Feb -3.8 -7.1 -10.9
Mar 1.9 -2.2 -7.1
Apr 8.4 3.6 -1.8
May 15.7 10.3 3.9
Jun 19.3 14 7.9
Jul 22.3 17.3 11.8
Aug 20.1 15.3 10
Sep 14.2 10.3 6
Oct 7.4 4.5 1.2
Nov 2.8 0.6 -1.9
Dec -1.4 -3.9 -6.7



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Jamsa are February, May, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early February. For example, on the week of February 5th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid December with an average of 3 days of significant precipitation the week of December 10th.

When can you find snow in Jamsa? Weather stations report very large amounts of snow likely to be deepest around February, especially close to early February. The best time to ski (if at all) in Jamsa is often around around December 17th 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 Jamsa.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 16% 10.2 1.3
Feb 4% 14 0.5
Mar 10% 10.7 0.7
Apr 11% 12.3 1.1
May 6% 0 1
Jun 20% 0 2.3
Jul 25% 0 3.2
Aug 25% 0 2.7
Sep 20% 0 2.2
Oct 23% 0.8 2.4
Nov 22% 2.3 2.3
Dec 30% 7.5 2.4

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 16 25.9 3.3
Feb 4 35.6 1.3
Mar 10 27.2 1.8
Apr 11 31.2 2.8
May 6 0 2.5
Jun 20 0 5.8
Jul 25 0 8.1
Aug 25 0 6.9
Sep 20 0 5.6
Oct 23 2 6.1
Nov 22 5.8 5.8
Dec 30 19.1 6.1


Humidity and Wind

Jamsa has some extremely humid months, with other comfortably humid months. The least humid month is May (54.2% relative humidity), and the most humid month is November (91.5%).

Wind in Jamsa is usually calm. The windiest month is December, followed by March and November. December’s average wind speed of around 6 knots (6.9 MPH or 11.1 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early May where average top sustained speeds reach 12 knots, which is considered a moderate breeze.

Relative Humidity (%)

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

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 5.2 Light breeze 9 Gentle breeze
Feb 5 Light breeze 8.8 Gentle breeze
Mar 6 Light breeze 10.5 Gentle breeze
Apr 5.8 Light breeze 11 Significant breeze
May 5.7 Light breeze 11.3 Gentle breeze
Jun 5.4 Light breeze 10.7 Gentle breeze
Jul 5 Light breeze 9.7 Gentle breeze
Aug 4.5 Light breeze 9 Gentle breeze
Sep 5.2 Light breeze 9.5 Gentle breeze
Oct 5.7 Light breeze 9.8 Gentle breeze
Nov 5.8 Light breeze 10 Gentle breeze
Dec 6 Light breeze 10.1 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 90%
Feb 86.9%
Mar 72.1%
Apr 61.8%
May 54.2%
Jun 59.2%
Jul 64.6%
Aug 70.8%
Sep 80.5%
Oct 84.6%
Nov 91.5%
Dec 90.7%


Is it Safe to Travel to Jamsa?

Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for Finland; 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 Dec 04, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in Jamsa, Finland is July, followed by June 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 Jamsa in December. 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 50.7 in December means 50.7% of the tourists vs. July.



Overall Jamsa Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 65.4°F (18.6°C) and 31°F (-0.6°C) with far warmer temperatures in the later months. Rain is rare with 2 to 3 days of significant precipitation per month. Spring is the second 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 comfortable. These months see the most precipitation with 6 to 8 days of precipitation per month. June – August is the busiest season for tourism in Jamsa, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 61.5°F (16.4°C) and 32.6°F (0.3°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 6 to 7 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 far too cold this time of year in Jamsa to be enjoyable for warm weather travelers. The average high during this season is between 31.6°F (-0.2°C) and 21.1°F (-6.1°C). On average, it rains or snows a fair amount: 1 to 9 times per month. These times of year are fairly slow with tourists.


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