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Mikkeli weather & best time to visit

City break

Mikkeli at a glance

Best time
May – Aug
Warmest month
Jul · 23°
Sunshine a year
1,630 h
Rain a year
646 mm
Climate
Continental
Time zone
UTC+2 / UTC+3
Elevation
85 m

Climate in Mikkeli

Mikkeli has mild to warm summers and cold winters with occasional snow. July is the warmest month with average highs of 23 °C, while January is the coolest at −4 °C. With around 1,630 hours of sunshine a year, Mikkeli is moderately sunny; July is the sunniest month with 8.8 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Mikkeli

The best time to visit Mikkeli is from May to August. For sightseeing, day trips and hiking, conditions are most comfortable in May. The wettest month is July with 88 mm of precipitation.

Mikkeli through the seasons

How the weather changes over the seasons, with averages for each.

Mikkeli in spring

Mar – May

44

Fair

  • 1–16 °C by day
  • 6.4 h of sun a day
  • 28 rainy days in all

Mikkeli in summer

Jun – Aug

77

Good

  • 20–23 °C by day
  • 8.1 h of sun a day
  • 39 rainy days in all

Mikkeli in autumn

Sep – Nov

27

Poor

  • 2–15 °C by day
  • 2.2 h of sun a day
  • 33 rainy days in all

Mikkeli in winter

Dec – Feb

16

Poor

  • −4–−2 °C by day
  • 1.1 h of sun a day
  • 32 rainy days in all

Which month for what?

Beach & swimming

No sea nearby

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

May

15–28 °C and not too much rain

Snow

Nov – Apr

Snow on 2 or more days

Find your perfect month

Tell us what you like and we rate every month in Mikkeli for you.

Sunshine
Little rain

Your best months: July

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

14

Holiday weather in October

Poor

Best time to visit: May – August

A typical day in October

  1. Morning, 08:00: about 2°
  2. Midday, 13:00: about 7°
  3. Afternoon, 16:00: about 7°
  4. Evening, 20:00: about 5°
  5. Night, 23:00: about 3°

07:5118:02

Cold evenings: bring a warm jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 07:24–08:54 · evening 16:59–18:29
Blue hour
Morning 07:07–07:24 · evening 18:29–18:46

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Mikkeli compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 11° at the start of the month to 4° at the end. The days get 2.9 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high11°4°
Night-time low3°−1°
Daylight11.5 h8.7 h

What is the weather like in Mikkeli in October?

In October, Mikkeli is cold: daytime highs average 7 °C, and nights cool down to about 1 °C. The sun is scarce, with only about 1.8 hours a day. Rain is frequent, with about 12 rainy days and 58 mm in total. All in all, October is not an ideal month for a holiday in Mikkeli.

More details for October

Daylight
10 h 10 min07:51 – 18:02
UV index
1 · lowclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
17 km/haverage daily peakAll months
Cloud cover
81 %on averageAll months
Hot days
0 days30 °C or more
Snow days
1 day1 cm or more of fresh snowAll months
Time zone
UTC+3offset from UTC

How the score comes together

  • Temperatureweight 50 %0 %
  • Sunshineweight 20 %0 %
  • Few rainy daysweight 30 %46 %

Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.

What to pack in October

  • Warm jacket
  • Rain jacket or umbrella

Compare two months in Mikkeli

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

June has the better holiday weather in Mikkeli: score 79 against 14. In June, days are 13 °C warmer than in October. June has one more rainy day. The sun shines 7 hours longer a day in June.

October vs June, Mikkeli
MonthOctoberJune
Holiday weather score1479better
Daytime high7°20°
Night-time low1°9°
Sunshine1.8 h8.5 hbetter
Rainy days12better13
Rainfall58 mmbetter77 mm

Based on the climate averages 1996–2025.

Mikkeli month by month

The typical weather for every month at a glance.

15January−4° · 0.8 h

In January, Mikkeli is bitterly cold: daytime highs average −4 °C, and nights often drop below freezing (−10 °C). The sun is scarce, with only about 0.8 hours a day. Precipitation falls on about 11 days, totalling 42 mm; on about 9 of them it snows. All in all, January is not an ideal month for a holiday in Mikkeli.

Mikkeli in January
19February−4° · 2.1 h

In February, Mikkeli is bitterly cold: daytime highs average −4 °C, and nights often drop below freezing (−11 °C). The sun is scarce, with only about 2.1 hours a day. Precipitation falls on about 9 days, totalling 35 mm; on about 8 of them it snows. All in all, February is not an ideal month for a holiday in Mikkeli.

Mikkeli in February
24March1° · 4.4 h

In March, Mikkeli is bitterly cold: daytime highs average 1 °C, and nights often drop below freezing (−7 °C). Expect around 4.4 hours of sunshine a day. Precipitation falls on about 9 days, totalling 31 mm; on about 7 of them it snows. All in all, March is not an ideal month for a holiday in Mikkeli.

Mikkeli in March
33April8° · 6.2 h

In April, Mikkeli is cold: daytime highs average 8 °C, and nights often drop below freezing (−2 °C). Expect around 6.2 hours of sunshine a day. Rain falls on about 8 days, adding up to 34 mm. Snow falls on about 3 days. All in all, April is not an ideal month for a holiday in Mikkeli.

Mikkeli in April
74May16° · 8.6 h

In May, Mikkeli is cool: daytime highs average 16 °C, and nights cool down to about 4 °C. The sun shines for around 8.6 hours a day. Rain is frequent, with about 10 rainy days and 50 mm in total. All in all, May is a good month for a holiday in Mikkeli.

Mikkeli in May
79June20° · 8.5 h

In June, Mikkeli is mild: daytime highs average 20 °C, and nights cool down to about 9 °C. The sun shines for around 8.5 hours a day. Rain is frequent, with about 13 rainy days and 77 mm in total. All in all, June is a good month for a holiday in Mikkeli.

Mikkeli in June
79July23° · 8.8 h

In July, Mikkeli is warm: daytime highs average 23 °C, and nights cool down to about 12 °C. The sun shines for around 8.8 hours a day. Rain is frequent, with about 13 rainy days and 88 mm in total. All in all, July is a good month for a holiday in Mikkeli.

Mikkeli in July
74August21° · 6.9 h

In August, Mikkeli is mild: daytime highs average 21 °C, and nights cool down to about 10 °C. The sun shines for around 6.9 hours a day. Rain is frequent, with about 13 rainy days and 74 mm in total. All in all, August is a good month for a holiday in Mikkeli.

Mikkeli in August
54September15° · 4.3 h

In September, Mikkeli is cool: daytime highs average 15 °C, and nights cool down to about 6 °C. Expect around 4.3 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 55 mm in total. All in all, September is a so-so month for a holiday in Mikkeli.

Mikkeli in September
14October7° · 1.8 h

In October, Mikkeli is cold: daytime highs average 7 °C, and nights cool down to about 1 °C. The sun is scarce, with only about 1.8 hours a day. Rain is frequent, with about 12 rainy days and 58 mm in total. All in all, October is not an ideal month for a holiday in Mikkeli.

Mikkeli in October
14November2° · 0.6 h

In November, Mikkeli is bitterly cold: daytime highs average 2 °C, and nights often drop below freezing (−3 °C). The sun is scarce, with only about 0.6 hours a day. Precipitation falls on about 11 days, totalling 52 mm; on about 5 of them it snows. All in all, November is not an ideal month for a holiday in Mikkeli.

Mikkeli in November
13December−2° · 0.4 h

In December, Mikkeli is bitterly cold: daytime highs average −2 °C, and nights often drop below freezing (−7 °C). The sun is scarce, with only about 0.4 hours a day. Precipitation falls on about 12 days, totalling 50 mm; on about 9 of them it snows. All in all, December is not an ideal month for a holiday in Mikkeli.

Mikkeli in December

Climate in detail

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Mikkeli

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Frost below 0°
  • Cold 0–8°
  • Cool 8–15°

ColdOctober: nights around 1°. The room should be heated.

The coolest nights are in February (−11°), the warmest in July (12°). Nights fall below 8 °C on average from September to May, so the room should be heated.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 7°Night 1°
DayNight
MonthScoreDayNightSunRain daysRain mm
JanuaryJan15−4°−10°0.8 h1142
FebruaryFeb19−4°−11°2.1 h935
MarchMar241°−7°4.4 h931
AprilApr338°−2°6.2 h834
MayMay7416°4°8.6 h1050
JuneJun7920°9°8.5 h1377
JulyJul7923°12°8.8 h1388
AugustAug7421°10°6.9 h1374
SeptemberSep5415°6°4.3 h1155
OctoberOct147°1°1.8 h1258
NovemberNov142°−3°0.6 h1152
DecemberDec13−2°−7°0.4 h1250

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

61.69° N, 27.27° E · 85 m · Europe/Helsinki

Sunshine

Sunshine hours in Mikkeli

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
1,630 hours
Sunniest month
Jul · 8.8 h a day
Least sunshine
Dec · 0.4 h a day
OctoberSunshine 1.8 hDaylight 10.2 hShare of daylight 18 %
SunshineDaylight

In October, the sun shines for about 1.8 of 10.2 hours of daylight in Mikkeli, 18 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain

Rain in Mikkeli: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
646 mm on 132 days
Wettest month
Jul · 88 mm
Driest month
Mar · 31 mm
OctoberRainy days 12Rainfall 58 mm

In October, Mikkeli has about 12 rainy days with 58 mm of rain in total.

Sun protection

UV index in Mikkeli

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
1 · lowLittle protection needed; sunglasses on bright days.

The sun is strongest in June (UV 5).

Minutes until sunburn in October

Very fair skin
over 2 h
Fair skin
over 2 h
Light brown skin
over 2 h
Olive skin
over 2 h

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds

Wind and clouds in Mikkeli

How breezy and how cloudy Mikkeli is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
16 km/h · gentle breeze
Windiest month
Dec · 17 km/h
Calmest month
Jul · 14 km/h
OctoberWind 17 km/hBeaufort 3

In October, the wind in Mikkeli typically peaks at 17 km/h during the day: Beaufort 3, gentle breeze.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
74 % · mostly cloudy
Clearest month
May · 60 %
Cloudiest month
Nov · 90 %
OctoberCloud cover 81 %Sunshine 1.8 h

In October, cloud covers on average 81 % of the sky over Mikkeli: mostly overcast, with about 1.8 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Snow

Snow in Mikkeli

When Mikkeli is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.

Snow days a year
42 days
Fresh snow a year
135 cm
Snowy months
Dec – Apr

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 1Fresh snow 5 cmChance of snow 17 / 100

In October, Mikkeli has about 1 day with at least 1 cm of fresh snow, 5 cm in total. The chance of seeing snow during a week's stay is 17 out of 100: hardly any.

Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.

Planning a trip to Mikkeli

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Mikkeli in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Mikkeli has its best school-holiday weather during the summer holidays (score 76) and its weakest during October half-term (score 14).

  • Easter holidays

    Mar – Apr

    30

    Poor

    • 6 °C by day
    • 5.7 h of sun a day
    • 9 rainy days a month

    Keep in mind: Snow

  • May half-term

    May – Jun

    75

    Good

    • 17 °C by day
    • 8.6 h of sun a day
    • 11 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    76

    GoodBest holidays

    • 21 °C by day
    • 7.6 h of sun a day
    • 13 rainy days a month
  • October half-term

    Oct

    14

    Poor

    • 7 °C by day
    • 1.8 h of sun a day
    • 12 rainy days a month
  • Christmas holidays

    Dec – Jan

    14

    Poor

    • −3 °C by day
    • 0.6 h of sun a day
    • 11 rainy days a month

    Keep in mind: Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 2 h 55 min
Distance
2,020 km
Time zone
UTC+3
Jet lag
Hardly any (under 3 h)

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Compare & alternatives

Compare

Mikkeli compared

Put Mikkeli side by side with another destination.

Nearby:
Compare with home:

Mikkeli vs Lappeenranta

In October the holiday weather in Mikkeli and Lappeenranta is about equally good (score 14 vs 15). During the day it is about as warm in Lappeenranta as in Mikkeli.

Mikkeli vs Lappeenranta, in October
in OctoberMikkeliLappeenranta
Holiday weather score1415
Daytime high7°7°
Sunshine2 h2 h
Rainy days1211
Best timeMay – AugMay – Aug

Through the year

OctoberMikkeli 7°Lappeenranta 7°
MikkeliLappeenranta
Go to Lappeenranta
Ranking

Finland in October: the best places

In October, Mikkeli ranks 15 among the 31 nearest destinations in this country.

  1. Espoo9°11°21
  2. 2Turku9°11°21
  3. 3Helsinki9°11°20
  4. 4Vantaa9°19
  5. 5Seinäjoki7°16
  6. 6Kokkola7°9°16
  7. 7Lappeenranta7°15
  8. 8Savonlinna7°15
  9. 15MikkeliThis page7°14
All destinations: Finland

Near Mikkeli

Other destinations close by.

Places with a climate like Mikkeli

Destinations whose weather through the year is closest to Mikkeli's – good alternatives.

  1. 89 % similar14ShlisselburgRussia9°Best time: May – Aug
  2. 88 % similar12JoensuuFinland7°Best time: May – Aug
  3. 88 % similar12CherepovetsRussia7°Best time: May – Aug
  4. 88 % similar16SeinäjokiFinland7°Best time: May – Aug

Frequently asked questions about Mikkeli

When is the best time to visit Mikkeli?

The best time to visit Mikkeli is from May to August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

What is the warmest month in Mikkeli?

July is the warmest month, with average highs of 23 °C and nights around 12 °C. January is the coolest month at −4 °C.

When does it rain most in Mikkeli?

The wettest month is July with 88 mm of precipitation. The driest month is March with 31 mm.

How many hours of sunshine does Mikkeli get?

Mikkeli gets around 1,630 hours of sunshine a year. The sunniest month is July with 8.8 hours a day; in December there are 0.4 hours a day.

What time zone is Mikkeli in?

Mikkeli is on UTC+2 in January and UTC+3 in July.

How long is the flight from London to Mikkeli?

A nonstop flight from London to Mikkeli takes about 2 h 55 min, for a straight-line distance of about 2,020 km.

Which school holidays are best for Mikkeli?

Mikkeli has its best school-holiday weather during the summer holidays (score 76) and its weakest during October half-term (score 14). Holiday ratings (0–100): Easter holidays 30, May half-term 75, summer holidays 76, October half-term 14, Christmas holidays 14.