Finland
Helsinki in March: weather, sea & travel advice
This month's data profile
Clear transition month
Helsinki in March is climatically mixed. The average daily high is around 0 °C, and the sea is about 1 °C. With about 10 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
27/100 · #7
Warmth
#10
Dryness
#4
Sun
#7
Sea warmth
#12
Published best categories: none
Helsinki · MarchPhoto: Matti Mattila · CC BY 2.0Climate facts
- Average high
- 0 °C
- Average low
- -3 °C
- Sea
- 1 °C
- Rainy days (est.)
- 10 rainy days (est.)
- Sun (est.)
- 3 h/day
- Humidity
- 90 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| February | -2 | -6 | 11 | 46 | 1.0 | 94 | 3.9 | 1 | 23 |
| March (selected) | 0 | -3 | 10 | 45 | 2.7 | 90 | 3.5 | 1 | 27 |
| April | 5 | 1 | 9 | 46 | 4.7 | 85 | 2.9 | 2 | 33 |
How do the previous and next months compare?
Baseline: March (27/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| February | -4 | -2.8 °C | -2.5 °C | +0.7 | +0.4 mm | -1.7 h | +3.4 % | +0.4 m/s | ±0 °C |
| April | +6 | +4.7 °C | +4 °C | -1.1 | +0.4 mm | +2 h | -5.1 % | -0.6 m/s | +1.5 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Helsinki in March?
The average daily high is around 0 °C, with an average daily low of about -3 °C.
Can you swim in Helsinki in March?
The sea is about 1 °C (cold).
Does it rain a lot in Helsinki in March?
The curated estimate is about 10 rainy days per month, not a directly measured long-term average. Total precipitation averages around 45 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Helsinki?
By the climate score, July are the strongest months for Helsinki. March is not among them.