Vantaa climate
Vantaa (Finland) has a warm-summer humid continental climate (Köppen Dfb). The average temperature over the year is 5 °C42 °F, and about 733 mm29 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Vantaa climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | −326 | −817 | −622 | 562.2 | 29 |
| Feb | −326 | −916 | −621 | 461.8 | 27 |
| Mar | 133 | −622 | −228 | 431.7 | 29 |
| Apr | 847 | 032 | 439 | 441.7 | 17 |
| May | 1559 | 542 | 1050 | 532.1 | 3 |
| Jun | 1966 | 1050 | 1558 | 753.0 | 0 |
| Jul | 2272 | 1457 | 1864 | 712.8 | 0 |
| Aug | 2169 | 1355 | 1762 | 702.8 | 0 |
| Sep | 1560 | 847 | 1253 | 622.4 | 0 |
| Oct | 846 | 337 | 542 | 773.0 | 9 |
| Nov | 337 | −131 | 134 | 702.7 | 16 |
| Dec | −130 | −523 | −327 | 672.6 | 24 |
| Year | 2272 | −916 | 542 | 73329 | 154 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 98% | 82% | 0.3 | 6:35 |
| Feb | 98% | 79% | 0.8 | 8:00 |
| Mar | 94% | 69% | 2.2 | 11:34 |
| Apr | 82% | 67% | 3.8 | 14:29 |
| May | 77% | 62% | 5.2 | 17:11 |
| Jun | 78% | 66% | 5.4 | 18:55 |
| Jul | 79% | 64% | 5.2 | 18:10 |
| Aug | 81% | 63% | 4.0 | 15:39 |
| Sep | 87% | 67% | 2.4 | 12:45 |
| Oct | 92% | 78% | 1.1 | 9:56 |
| Nov | 96% | 85% | 0.3 | 7:18 |
| Dec | 97% | 84% | 0.1 | 5:49 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Vantaa is like
The warmest month is July, with an average high of 22 °C72 °F and a low of 14 °C57 °F. The coldest is February, when highs average −3 °C26 °F and lows −9 °C16 °F. Seasons are strongly marked: the warmest month is on average 23.9 °C43.1 °F warmer than the coldest.
Annual precipitation is moderate at about 733 mm29 in. Rain is spread fairly evenly through the year. The wettest month is October (77 mm3.0 in), the driest is March (43 mm1.7 in).
Relative humidity ranges from 77% in May to 98% in February. The clearest skies (lowest average cloud amount, 62%) are typical of May. Average wind speed near the ground ranges from 2 km/h (1 mph) in June to 3 km/h (2 mph) in January. Daylight lasts from about 5.8 hours in December to 18.9 hours in June.
A lasting snow cover is typical in November–March, when the average snow depth in the reanalysis exceeds 10 cm (deepest in February, about 22 cm).
Best time to visit Vantaa
Based on these averages, the most comfortable months for sightseeing and outdoor activities are July and August: average highs of 21 °C69 °F to 22 °C72 °F with 70 mm2.8 in to 71 mm2.8 in of precipitation per month.
The most challenging month is February, which is cold, with average highs of −3 °C26 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Vantaa
- Winter (December–February) — highs −326 to −1 °C30 °F, lows −916 to −5 °C23 °F, about 56 mm2.2 in of precipitation a month. Pack a winter coat, hat, gloves and warm, non-slip boots and shoes with good grip, as frost is common.
- Spring (March–May) — highs 133 to 15 °C59 °F, lows −622 to 5 °C42 °F, about 47 mm1.8 in of precipitation a month. Pack a warm coat, layers and closed shoes and shoes with good grip, as frost is common.
- Summer (June–August) — highs 1966 to 22 °C72 °F, lows 1050 to 14 °C57 °F, about 72 mm2.8 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
- Autumn (September–November) — highs 337 to 15 °C60 °F, lows −131 to 8 °C47 °F, about 69 mm2.7 in of precipitation a month. Pack a warm coat, layers and closed shoes.
How Vantaa compares
Compared with Helsinki, about 15 km to the southwest, Vantaa is on average 0.8 °C1.5 °F cooler and receives a similar amount of precipitation. The difference is largest in January (2.7 °C4.8 °F cooler).
Of the 9 places in Finland covered by World Climates, Vantaa is the 4th warmest by annual mean temperature and the 5th wettest by annual precipitation. See all of them on the Finland climate page.
Places in other countries with the most similar temperature and rainfall pattern: Tallinn (Estonia, Dfb), Riga (Latvia, Dfb) and Uppsala (Sweden, Dfb).
Nearby places
- Helsinki 15 km · 6 °C43 °F · 712 mm28 in
- Espoo 24 km · 6 °C43 °F · 727 mm29 in
- Lahti 84 km · 4 °C40 °F · 746 mm29 in
- Tallinn 97 km · 6 °C43 °F · 685 mm27 in
- Tampere 150 km · 4 °C40 °F · 776 mm31 in
- Turku 153 km · 6 °C42 °F · 723 mm28 in
- Jyväskylä 220 km · 4 °C39 °F · 807 mm32 in
- Mariehamn 283 km · 7 °C45 °F · 649 mm26 in
Frequently asked questions
What is the warmest month in Vantaa?
July is the warmest month in Vantaa, with an average high of 22 °C (72 °F) and an average low of 14 °C (57 °F).
What is the coldest month in Vantaa?
February is the coldest month, with an average high of -3 °C (26 °F) and an average low of -9 °C (16 °F).
When does it rain the most in Vantaa?
October is the wettest month with about 77 mm (3.0 in) of precipitation; March is the driest with about 43 mm (1.7 in).
What is the best time to visit Vantaa?
Judging by long-term averages, the most comfortable months are July and August.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.