Helsinki Weather in April
Helsinki in April sees low daytime temperatures of 9°C (48°F) and nighttime lows of 0°C (32°F). Moderate rainfall is typical, with around 43 mm (1.7 in) for the month.
Rainfall in Helsinki in April
On average, there are about 13 days with rain during this month, averaging 43 mm (1.7 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Helsinki in April
April in Helsinki brings low temperatures, with highs of 9°C (48°F) and nights around 0°C (32°F). Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With overnight lows of 0°C (32°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Helsinki in April
The month enjoys around 195 hours of sunshine, creating mostly sunny days despite the cool temperatures.
Wind Speed in Helsinki in April
Wind speeds average 4 m/s (8 knots) during April. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.
Average water temperature in April
At 2°C (36°F), the water is too cold for most people to swim comfortably. A wetsuit is pretty much essential if you plan to go in.If you prefer dry days with pleasant temperatures, April may not be the ideal month to visit Helsinki. Our weather planner can help you explore destinations with more pleasant weather conditions.
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 Helsinki's climate page.
Helsinki Temperature in April
Min Temperature
0°C (32°F)
Max Temperature
9°C (48°F)
Water Temperature
2°C (36°F)
Chance of Rain
44%
Precipitation
43 mm (1.7 in)
Rainy days
13 days
Humidity
74%
Windspeed
4 m/s (8 knots)
Sunshine
195 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Helsinki typically rise from around 5°C (41°F) at the start of April to approximately 11°C (52°F) by the end. Nights are cold, with lows typically ranging from -2°C (28°F) to 2°C (36°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 Helsinki in April
Browse day-by-day weather records for Helsinki spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Helsinki historical weather extremes in April
Our historical data for Helsinki spans 1976 to 2026, revealing these weather extremes.
- Helsinki recorded its highest April temperature of 23°C (73°F) on April 28, 1998.
- On April 1, 2003, Helsinki saw its coldest April day with temperatures maxing out at -3°C (27°F).
- The coldest night in April in Helsinki was on April 3, 1998, with a minimum of -12°C (10°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 →
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What to Wear in Helsinki in April
Dress warmly and in layers for your trip to Helsinki 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. Wet weather is likely, so pack waterproof gear for multiple rainy days. With water temperatures around 2°C (36°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Helsinki 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 Helsinki's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Helsinki climate overview or explore weather in Finland.
