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Seinäjoki weather & best time to visit

City break

Seinäjoki at a glance

Best time
May – Aug
Warmest month
Jul · 22°
Sunshine a year
1,720 h
Rain a year
613 mm
Climate
Continental
Time zone
UTC+2 / UTC+3
Elevation
50 m

Climate in Seinäjoki

Seinäjoki has mild to warm summers and cold winters with occasional snow. July is the warmest month with average highs of 22 °C, while February is the coolest at −3 °C. With around 1,720 hours of sunshine a year, Seinäjoki is moderately sunny; June is the sunniest month with 9.2 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Seinäjoki

The best time to visit Seinäjoki is from May to August. For sightseeing, day trips and hiking, conditions are most comfortable from May to June and in September. The wettest month is July with 87 mm of precipitation.

Seinäjoki through the seasons

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

Seinäjoki in spring

Mar – May

43

Fair

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

Seinäjoki in summer

Jun – Aug

78

Good

  • 20–22 °C by day
  • 8.2 h of sun a day
  • 39 rainy days in all

Seinäjoki in autumn

Sep – Nov

30

Poor

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

Seinäjoki in winter

Dec – Feb

18

Poor

  • −3–−1 °C by day
  • 1.3 h of sun a day
  • 28 rainy days in all

Which month for what?

Beach & swimming

No sea nearby

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

May – Jun, Sep

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 Seinäjoki for you.

Sunshine
Little rain

Your best months: June – 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

16

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°

08:1218:17

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 07:43–09:17 · evening 17:11–18:45
Blue hour
Morning 07:26–07:43 · evening 18:45–19:03

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 Seinäjoki 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 5° at the end. The days get 3.0 h shorter.

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

What is the weather like in Seinäjoki in October?

In October, Seinäjoki is cold: daytime highs average 7 °C, and nights cool down to about 1 °C. The sun is scarce, with only about 2.6 hours a day. Rain is frequent, with about 10 rainy days and 54 mm in total. Snow falls on about 2 days. All in all, October is not an ideal month for a holiday in Seinäjoki.

More details for October

Daylight
10 h 5 min08:12 – 18:17
UV index
1 · lowclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
16 km/haverage daily peakAll months
Cloud cover
77 %on averageAll months
Hot days
0 days30 °C or more
Snow days
2 days1 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 %54 %

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 Seinäjoki

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 Seinäjoki: score 83 against 16. In June, days are 13 °C warmer than in October. June has 2 more rainy days. The sun shines 7 hours longer a day in June.

October vs June, Seinäjoki
MonthOctoberJune
Holiday weather score1683better
Daytime high7°20°
Night-time low1°8°
Sunshine2.6 h9.2 hbetter
Rainy days10better12
Rainfall54 mmbetter69 mm

Based on the climate averages 1996–2025.

Seinäjoki month by month

The typical weather for every month at a glance.

17January−3° · 1.0 h

In January, Seinäjoki is bitterly cold: daytime highs average −3 °C, and nights often drop below freezing (−9 °C). The sun is scarce, with only about 1.0 hours a day. Precipitation falls on about 10 days, totalling 35 mm; on about 7 of them it snows. All in all, January is not an ideal month for a holiday in Seinäjoki.

Seinäjoki in January
23February−3° · 2.5 h

In February, Seinäjoki is bitterly cold: daytime highs average −3 °C, and nights often drop below freezing (−10 °C). The sun is scarce, with only about 2.5 hours a day. Precipitation falls on about 7 days, totalling 28 mm; on about 6 of them it snows. All in all, February is not an ideal month for a holiday in Seinäjoki.

Seinäjoki in February
29March2° · 4.7 h

In March, Seinäjoki is bitterly cold: daytime highs average 2 °C, and nights often drop below freezing (−7 °C). Expect around 4.7 hours of sunshine a day. Precipitation falls on about 7 days, totalling 28 mm; on about 5 of them it snows. All in all, March is not an ideal month for a holiday in Seinäjoki.

Seinäjoki in March
31April8° · 6.3 h

In April, Seinäjoki is cold: daytime highs average 8 °C, and nights often drop below freezing (−1 °C). Expect around 6.3 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 36 mm in total. Snow falls on about 3 days. All in all, April is not an ideal month for a holiday in Seinäjoki.

Seinäjoki in April
70May15° · 8.6 h

In May, Seinäjoki is cool: daytime highs average 15 °C, and nights cool down to about 3 °C. The sun shines for around 8.6 hours a day. Rain is frequent, with about 11 rainy days and 52 mm in total. All in all, May is a good month for a holiday in Seinäjoki.

Seinäjoki in May
83June20° · 9.2 h

In June, Seinäjoki is mild: daytime highs average 20 °C, and nights cool down to about 8 °C. With around 9.2 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 12 rainy days and 69 mm in total. All in all, June is an excellent month for a holiday in Seinäjoki.

Seinäjoki in June
78July22° · 8.6 h

In July, Seinäjoki is warm: daytime highs average 22 °C, and nights cool down to about 11 °C. The sun shines for around 8.6 hours a day. Rain is frequent, with about 14 rainy days and 87 mm in total. All in all, July is a good month for a holiday in Seinäjoki.

Seinäjoki in July
72August21° · 6.7 h

In August, Seinäjoki is mild: daytime highs average 21 °C, and nights cool down to about 10 °C. The sun shines for around 6.7 hours a day. Rain is frequent, with about 13 rainy days and 79 mm in total. All in all, August is a good month for a holiday in Seinäjoki.

Seinäjoki in August
58September15° · 4.7 h

In September, Seinäjoki is cool: daytime highs average 15 °C, and nights cool down to about 6 °C. Expect around 4.7 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 54 mm in total. All in all, September is a so-so month for a holiday in Seinäjoki.

Seinäjoki in September
16October7° · 2.6 h

In October, Seinäjoki is cold: daytime highs average 7 °C, and nights cool down to about 1 °C. The sun is scarce, with only about 2.6 hours a day. Rain is frequent, with about 10 rainy days and 54 mm in total. Snow falls on about 2 days. All in all, October is not an ideal month for a holiday in Seinäjoki.

Seinäjoki in October
16November2° · 1.0 h

In November, Seinäjoki is bitterly cold: daytime highs average 2 °C, and nights often drop below freezing (−3 °C). The sun is scarce, with only about 1.0 hours a day. Precipitation falls on about 11 days, totalling 49 mm; on about 4 of them it snows. All in all, November is not an ideal month for a holiday in Seinäjoki.

Seinäjoki in November
15December−1° · 0.5 h

In December, Seinäjoki is bitterly cold: daytime highs average −1 °C, and nights often drop below freezing (−6 °C). The sun is scarce, with only about 0.5 hours a day. Precipitation falls on about 11 days, totalling 42 mm; on about 6 of them it snows. All in all, December is not an ideal month for a holiday in Seinäjoki.

Seinäjoki 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 Seinäjoki

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 (−10°), the warmest in July (11°). 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
JanuaryJan17−3°−9°1.0 h1035
FebruaryFeb23−3°−10°2.5 h728
MarchMar292°−7°4.7 h728
AprilApr318°−1°6.3 h936
MayMay7015°3°8.6 h1152
JuneJun8320°8°9.2 h1269
JulyJul7822°11°8.6 h1487
AugustAug7221°10°6.7 h1379
SeptemberSep5815°6°4.7 h1054
OctoberOct167°1°2.6 h1054
NovemberNov162°−3°1.0 h1149
DecemberDec15−1°−6°0.5 h1142

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

62.79° N, 22.83° E · 50 m · Europe/Helsinki

Sunshine

Sunshine hours in Seinäjoki

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

Per year
1,720 hours
Sunniest month
Jun · 9.2 h a day
Least sunshine
Dec · 0.5 h a day
OctoberSunshine 2.6 hDaylight 10.1 hShare of daylight 26 %
SunshineDaylight

In October, the sun shines for about 2.6 of 10.1 hours of daylight in Seinäjoki, 26 % of the daylight hours.

Sunshine hours: measured at the weather station 24 km away, averages 1991–2020 (WMO climate normals). Daylight is the time from sunrise to sunset on the 15th of the month.

Rain

Rain in Seinäjoki: 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
613 mm on 126 days
Wettest month
Jul · 87 mm
Driest month
Mar · 28 mm
OctoberRainy days 10Rainfall 54 mm

In October, Seinäjoki has about 10 rainy days with 54 mm of rain in total.

Sun protection

UV index in Seinäjoki

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 Seinäjoki

How breezy and how cloudy Seinäjoki 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
Jan · 17 km/h
Calmest month
Jul · 14 km/h
OctoberWind 16 km/hBeaufort 3

In October, the wind in Seinäjoki typically peaks at 16 km/h during the day: Beaufort 3, gentle breeze.

Clouds

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

Year average
71 % · mostly cloudy
Clearest month
May · 59 %
Cloudiest month
Nov · 84 %
OctoberCloud cover 77 %Sunshine 2.6 h

In October, cloud covers on average 77 % of the sky over Seinäjoki: mostly cloudy, with about 2.6 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 Seinäjoki

When Seinäjoki 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
33 days
Fresh snow a year
105 cm
Snowy months
Dec – Apr

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 2Fresh snow 5 cmChance of snow 19 / 100

In October, Seinäjoki has about 2 days with at least 1 cm of fresh snow, 5 cm in total. The chance of seeing snow during a week's stay is 19 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 Seinäjoki

Weather for your travel dates

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

Seinäjoki 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.

Seinäjoki has its best school-holiday weather during the summer holidays (score 74) and its weakest during October half-term (score 16).

  • Easter holidays

    Mar – Apr

    30

    Poor

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

    Keep in mind: Snow

  • May half-term

    May – Jun

    73

    Good

    • 16 °C by day
    • 8.7 h of sun a day
    • 11 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    74

    GoodBest holidays

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

    Oct

    16

    Poor

    • 7 °C by day
    • 2.6 h of sun a day
    • 10 rainy days a month
  • Christmas holidays

    Dec – Jan

    16

    Poor

    • −2 °C by day
    • 0.8 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 45 min
Distance
1,870 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

Seinäjoki compared

Put Seinäjoki side by side with another destination.

Nearby:
Compare with home:

Seinäjoki vs Vaasa

In October the holiday weather in Seinäjoki and Vaasa is about equally good (score 16 vs 15). During the day Vaasa is 1 °C warmer than Seinäjoki.

Seinäjoki vs Vaasa, in October
in OctoberSeinäjokiVaasa
Holiday weather score1615
Daytime high7°8°
Seano sea nearby9°
Sunshine3 h3 h
Rainy days1011
Best timeMay – AugJul

Through the year

OctoberSeinäjoki 7°Vaasa 8°
SeinäjokiVaasa
Go to Vaasa
Ranking

Finland in October: the best places

In October, Seinäjoki ranks 5 among the 31 nearest destinations in this country.

  1. Turku9°11°21
  2. 2Espoo9°11°21
  3. 3Helsinki9°11°20
  4. 4Vantaa9°19
  5. 5SeinäjokiThis page7°16
  6. 6Kokkola7°9°16
  7. 7Rovaniemi4°16
  8. 8Jakobstad7°9°15
All destinations: Finland

Near Seinäjoki

Other destinations close by.

Places with a climate like Seinäjoki

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

  1. 89 % similar15LappeenrantaFinland7°Best time: May – Aug
  2. 89 % similar14LahtiFinland8°Best time: May – Aug
  3. 88 % similar15KouvolaFinland8°Best time: May – Aug
  4. 88 % similar15HämeenlinnaFinland8°Best time: May – Aug

Frequently asked questions about Seinäjoki

When is the best time to visit Seinäjoki?

The best time to visit Seinäjoki 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 Seinäjoki?

July is the warmest month, with average highs of 22 °C and nights around 11 °C. February is the coolest month at −3 °C.

When does it rain most in Seinäjoki?

The wettest month is July with 87 mm of precipitation. The driest month is March with 28 mm.

How many hours of sunshine does Seinäjoki get?

Seinäjoki gets around 1,720 hours of sunshine a year. The sunniest month is June with 9.2 hours a day; in December there are 0.5 hours a day.

What time zone is Seinäjoki in?

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

How long is the flight from London to Seinäjoki?

A nonstop flight from London to Seinäjoki takes about 2 h 45 min, for a straight-line distance of about 1,870 km.

Which school holidays are best for Seinäjoki?

Seinäjoki has its best school-holiday weather during the summer holidays (score 74) and its weakest during October half-term (score 16). Holiday ratings (0–100): Easter holidays 30, May half-term 73, summer holidays 74, October half-term 16, Christmas holidays 16.