The best times to visit Hanko 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.
Hanko Travel Guide
Other Hanko Travel Info
Weather in Hanko
Temperature
Average temperatures in Hanko vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 30th 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 Hanko, the hottest months are July, August, and then September. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 71.2°F (21.8°C) with temperatures rarely dropping below 60.7°F (15.9°C) at night.
Hanko Temperatures (Fahrenheit)
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Hanko Temperatures (Celsius)
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“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.
Hanko Perceived Temperature (F)
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Hanko Perceived Temperature (C)
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Average Hanko 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 | 32.2 | 28.6 | 24.9 |
| Feb | 30.5 | 27 | 23.3 |
| Mar | 35.8 | 32 | 27.9 |
| Apr | 43.5 | 38.5 | 34.5 |
| May | 53.1 | 47.5 | 43 |
| Jun | 61.5 | 56.1 | 51.7 |
| Jul | 69.1 | 63.9 | 59.3 |
| Aug | 67.9 | 63.1 | 58.8 |
| Sep | 60.3 | 56.2 | 52.3 |
| Oct | 50.4 | 47 | 43.6 |
| Nov | 43.4 | 40.5 | 37.4 |
| Dec | 37 | 34 | 30.5 |
Show Celsius
| Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
|---|---|---|---|
| Jan | 0.1 | -1.9 | -3.9 |
| Feb | -0.8 | -2.8 | -4.8 |
| Mar | 2.1 | 0 | -2.3 |
| Apr | 6.4 | 3.6 | 1.4 |
| May | 11.7 | 8.6 | 6.1 |
| Jun | 16.4 | 13.4 | 10.9 |
| Jul | 20.6 | 17.7 | 15.2 |
| Aug | 19.9 | 17.3 | 14.9 |
| Sep | 15.7 | 13.4 | 11.3 |
| Oct | 10.2 | 8.3 | 6.4 |
| Nov | 6.3 | 4.7 | 3 |
| Dec | 2.8 | 1.1 | -0.8 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Hanko are May, April, and then January. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late January. For example, on the week of January 22nd there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early December with an average of 3 days of significant precipitation the week of December 3rd.
When can you find snow in Hanko? Weather stations report very large amounts of snow likely to be deepest around March, especially close to early March. The best time to ski (if at all) in Hanko is often around around March 12th 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 Hanko.
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Snow on the Ground
The graph below shows the average snow on the ground in Hanko (in).
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Average Rain and Snow by Month
Show Inches
| Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
|---|---|---|---|
| Jan | 15% | 8.9 | 1.6 |
| Feb | 15% | 12.2 | 1.2 |
| Mar | 15% | 16 | 1.2 |
| Apr | 13% | 10 | 1.4 |
| May | 12% | 0 | 1.3 |
| Jun | 17% | 0 | 2.3 |
| Jul | 17% | 0 | 2.2 |
| Aug | 25% | 0 | 3.6 |
| Sep | 22% | 0 | 2.2 |
| Oct | 18% | 0.8 | 2.3 |
| Nov | 23% | 2.3 | 2.3 |
| Dec | 32% | 10.5 | 2.6 |
Show Centimeters
| Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
|---|---|---|---|
| Jan | 15 | 22.6 | 4.1 |
| Feb | 15 | 31 | 3 |
| Mar | 15 | 40.6 | 3 |
| Apr | 13 | 25.4 | 3.6 |
| May | 12 | 0 | 3.3 |
| Jun | 17 | 0 | 5.8 |
| Jul | 17 | 0 | 5.6 |
| Aug | 25 | 0 | 9.1 |
| Sep | 22 | 0 | 5.6 |
| Oct | 18 | 2 | 5.8 |
| Nov | 23 | 5.8 | 5.8 |
| Dec | 32 | 26.7 | 6.6 |
Humidity and Wind
Hanko has some extremely humid months, and high humidity throughout the year. The least humid month is April (76.7% relative humidity), and the most humid month is February (84.7%).
Wind in Hanko is usually stronger than many places. The windiest month is December, followed by November and January. December’s average wind speed of around 20.7 knots (23.9 MPH or 38.4 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 early December where average top sustained speeds reach 29.8 knots, which is considered high wind or moderate gale winds.
Relative Humidity (%)
The graph below shows the average % humidity by month in Hanko.
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Wind
The graph below shows wind speed (max and average) in knots.
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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 | 18.5 | Strong breeze | 24.5 | Very strong breeze |
| Feb | 16.4 | Significant breeze | 22.4 | Very strong breeze |
| Mar | 16.4 | Significant breeze | 22.7 | Very strong breeze |
| Apr | 14.8 | Significant breeze | 20.9 | Strong breeze |
| May | 14.4 | Significant breeze | 20.6 | Very strong breeze |
| Jun | 14.1 | Significant breeze | 20.3 | Strong breeze |
| Jul | 13.4 | Significant breeze | 19.1 | Very strong breeze |
| Aug | 13.7 | Significant breeze | 19.3 | Strong breeze |
| Sep | 15.9 | Significant breeze | 21.7 | Very strong breeze |
| Oct | 17.3 | Strong breeze | 23.3 | Very strong breeze |
| Nov | 19.3 | Strong breeze | 26.3 | Very strong breeze |
| Dec | 20.7 | Strong breeze | 27.7 | Very strong breeze |
Show Relative Humidity by Month
| Month | Avg. Relative Humidity |
|---|---|
| Jan | 83.9% |
| Feb | 84.7% |
| Mar | 80% |
| Apr | 76.7% |
| May | 76.8% |
| Jun | 77% |
| Jul | 77.8% |
| Aug | 77.3% |
| Sep | 78.8% |
| Oct | 77.7% |
| Nov | 83.1% |
| Dec | 82.8% |
Is it Safe to Travel to Hanko?
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 Hanko, Finland is June, followed by April and September. 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 Hanko 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
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Overall Hanko Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 58.8°F (14.9°C) and 33.4°F (0.8°C) with warmer temperatures in the later months. Rain is somewhat common with 4 to 5 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 moderate precipitation with 5 to 8 days of precipitation per month. June – August is the busiest season for tourism in Hanko, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 63°F (17.2°C) and 39.3°F (4.1°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 fairly slow during these months due to the weather, so hotels may be lower priced.
Winter (December through February)
Weather is far too cold this time of year in Hanko to be enjoyable for warm weather travelers. The average high during this season is between 39.1°F (3.9°C) and 28.9°F (-1.7°C). On average, it rains or snows a fair amount: 4 to 10 times per month. These times of year are the slowest with tourists.
Best Times to Travel› Finland › Hanko, Finland