Jämsä Weather in April
With daytime temperatures of 8°C (46°F) and nighttime lows of -1°C (30°F), April in Jämsä brings low temperatures during the day. Some snow/rainfall is to be expected during the month.
Rainfall in Jämsä in April
Historically, April sees about 14 days of snow/rain, with a monthly average of 40 mm (1.6 in). Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Jämsä in April
Temperatures in Jämsä in April top out at 8°C (46°F) and drop to -1°C (30°F) overnight. It stays cool throughout the day, so warm layers are a good idea from morning to evening. With overnight lows of -1°C (30°F), temperatures fall below freezing at night. An extra thick blanket can make a real difference if your accommodation runs cold.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July and August typically offer the best weather for Jämsä.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Jämsä's climate page.
Jämsä Temperature in April
Min Temperature
-1°C (30°F)
Max Temperature
8°C (46°F)
Chance of Rain
46%
Precipitation
40 mm (1.6 in)
Rainy days
14 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Jämsä typically rise from around 4°C (39°F) at the start of April to approximately 10°C (50°F) by the end. Nights are very cold, with lows typically ranging from -4°C (25°F) to 1°C (34°F).
Average temperatures in April
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in April
Historical weather for Jämsä in April
Browse day-by-day weather records for Jämsä spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jämsä historical weather extremes in April
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Jämsä.
- On April 29, 1998, temperatures climbed to 23°C (73°F), marking the warmest April day on record.
- Jämsä experienced its chilliest April day on April 2, 1998, reaching only -4°C (25°F).
- The coldest night in April in Jämsä was on April 5, 1998, with a minimum of -17°C (1°F).
Best Places in Finland in April
Find out more about the weather in Finland and which places have the best travel conditions in this month. See all of Finland in April →
perfect weather
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tolerable
unpleasant
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What to Wear in Jämsä in April
Dress warmly and in layers for your trip to Jämsä in April. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Light rain is possible, so consider bringing a small umbrella or rain jacket.What To Do in Jämsä in April
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Jämsä's climate page.
See the full Jämsä climate overview or explore weather in Finland.
