Climate Insights for Lapua

Seinäjoki, South Ostrobothnia, Finland

Hottest
July
22°C peak
Coldest
January
-9°C low
Wettest
August
102mm rain
Best to Visit
June, July
Mild temps & low rain

Climate Overview

The climate in Lapua is cool. The average annual temperature is 5°C and approximately 686mm of precipitation falls per year. Lapua receives a notable amount of rainfall throughout the year, including during its driest month. Lapua is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, February, March, when temperatures can drop to -9°C. Snowfall occurs from January to December, with around 166cm accumulating over the season.

Temperature

-10° 0° 10° 20° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: -3° Average: -6° Min: -9° Feb Max: -2° Average: -5° Min: -8° Mar Max: 2° Average: -2° Min: -6° Apr Max: 8° Average: 3° Min: -2° May Max: 15° Average: 10° Min: 3° Jun Max: 20° Average: 15° Min: 9° Jul Max: 22° Average: 17° Min: 11° Aug Max: 20° Average: 15° Min: 10° Sep Max: 15° Average: 11° Min: 6° Oct Max: 7° Average: 5° Min: 2° Nov Max: 2° Average: 0° Min: -2° Dec Max: -1° Average: -3° Min: -5°
Max
Average
Min

Temperatures in Lapua vary considerably across the year, with a 31°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 22°C with a mean of 17°C. The coldest month is January, when overnight lows fall to -9°C and the daily average is -6°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between April and May, with a 7°C shift in average temperatures.

Precipitation

0mm 25mm 50mm 75mm 100mm 125mm 150mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 41mm Snow: 33mm Feb Precipitation: 38mm Snow: 30mm Mar Precipitation: 35mm Snow: 23mm Apr Precipitation: 46mm Snow: 17mm May Precipitation: 51mm Snow: 1mm Jun Precipitation: 65mm Snow: 0mm Jul Precipitation: 81mm Snow: 0mm Aug Precipitation: 102mm Snow: 0mm Sep Precipitation: 62mm Snow: 0mm Oct Precipitation: 66mm Snow: 5mm Nov Precipitation: 55mm Snow: 25mm Dec Precipitation: 45mm Snow: 32mm
Precipitation
Snow

Lapua is a relatively dry area, receiving approximately 686mm of precipitation annually, which averages out to around 57mm per month. The wettest month is August, averaging 102mm of rainfall. July and October also tend to see above-average precipitation. The driest month is March, with just 35mm. That's 67mm less than August, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 166cm accumulating over the season. January typically sees the most snow at around 33cm.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 13km/h Feb Wind Speed: 12km/h Mar Wind Speed: 12km/h Apr Wind Speed: 11km/h May Wind Speed: 11km/h Jun Wind Speed: 11km/h Jul Wind Speed: 10km/h Aug Wind Speed: 11km/h Sep Wind Speed: 11km/h Oct Wind Speed: 12km/h Nov Wind Speed: 12km/h Dec Wind Speed: 12km/h
Wind Speed

Lapua is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 12km/h in winter, 11km/h in spring, 10km/h in summer, 12km/h in autumn.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

87 days until Winter

It is currently autumn in Lapua, which began on September 23, 2026. Lapua is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 22°C, while the coldest stretch bottoms out in January near -9°C. Winter is next, beginning on December 21, 2026 (87 days from now).

Spring

Temperatures range from -6 to 15°C. Rainfall is relatively light, with around 131mm over the season and a monthly average of 44mm. Winds are generally light, averaging 11km/h. Light layers work well as temperatures warm through the season. It is a great time to be outdoors.

Summer

Temperatures range from 9 to 22°C. Precipitation is moderate at around 248mm for the season, averaging 83mm per month. Winds are generally light, averaging 10km/h. Comfortable clothing with a light layer for cooler evenings is all you need.

Autumn

Temperatures range from -2 to 15°C. Precipitation is moderate at around 183mm for the season, averaging 61mm per month. Expect around 30cm of snow accumulation during this period. Winds are generally light, averaging 12km/h. Layered clothing works best as temperatures gradually cool. Enjoy the crisp air and changing scenery.

Winter

Temperatures range from -9 to -1°C. Rainfall is relatively light, with around 124mm over the season and a monthly average of 41mm. Expect around 94cm of snow accumulation during this period. Winds are generally light, averaging 12km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.

Best Time to Visit

Jan -6°
Feb -5°
Mar -2°
Apr 3°
May 10°
Jun 15°
Jul 17°
Aug 15°
Sep 11°
Oct 5°
Nov 0°
Dec -3°

The best time to visit Lapua is during June and July, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 73mm per month. By contrast, January can be quite cold with temperatures dropping to -9°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Lapua based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-9 °C
-3 °C
13 km/h
41 mm
33 cm
Feb
-8 °C
-2 °C
12 km/h
38 mm
30 cm
Mar
-6 °C
2 °C
12 km/h
35 mm
23 cm
Apr
-2 °C
8 °C
11 km/h
46 mm
17 cm
May
3 °C
15 °C
11 km/h
51 mm
1 cm
Jun
9 °C
20 °C
11 km/h
65 mm
0 cm
Jul
11 °C
22 °C
10 km/h
81 mm
0 cm
Aug
10 °C
20 °C
11 km/h
102 mm
0 cm
Sep Current
6 °C
15 °C
11 km/h
62 mm
0 cm
Oct
2 °C
7 °C
12 km/h
66 mm
5 cm
Nov
-2 °C
2 °C
12 km/h
55 mm
25 cm
Dec
-5 °C
-1 °C
12 km/h
45 mm
32 cm
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Metric (°C, km/h)