Average weather, temperature, rainfall, sunshine hours
Climate chart - Vaasa
The climate of Vaasa is
cold continental, with freezing winters and mild summers.
The city is located in central Finland, on the coast of the Gulf of Bothnia.
The
white nights, when it doesn't get completely dark even at midnight, occur from 2 May to 12 August.
In winter, there can be cold spells of arctic origin, while in summer, there can be short hot periods. The temperature dropped to -39 °C (-38 °F) in January 1999, while it reached 32 °C (89.5 °F) in July 2018.
The
average temperature of the coldest month (February) is of -7.4 °C (19 °F), that of the warmest month (July) is of 16.3 °C (61 °F). Here are the average temperatures.
Vaasa - Average temperatures| Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
|---|
| January | -10 | -3 | -6.3 | 14 | 27 | 20.6 |
|---|
| February | -11 | -3 | -7.4 | 11 | 26 | 18.6 |
|---|
| March | -8 | 1 | -3.3 | 18 | 34 | 26.1 |
|---|
| April | -1 | 8 | 3 | 29 | 46 | 37.4 |
|---|
| May | 3 | 14 | 8.9 | 38 | 58 | 48 |
|---|
| June | 8 | 18 | 12.9 | 46 | 65 | 55.2 |
|---|
| July | 11 | 22 | 16.3 | 52 | 71 | 61.4 |
|---|
| August | 10 | 20 | 14.8 | 49 | 68 | 58.7 |
|---|
| September | 6 | 15 | 10.3 | 43 | 58 | 50.6 |
|---|
| October | 2 | 8 | 4.8 | 35 | 46 | 40.6 |
|---|
| November | -2 | 3 | 0.6 | 29 | 38 | 33.2 |
|---|
| December | -6 | 0 | -3 | 22 | 32 | 26.7 |
|---|
| Year | 0.2 | 8.6 | 4.35 | 32.3 | 47.5 | 40 |
|---|
amounts to 500 millimeters (19.7 inches) per year: it is therefore quite scarce. It ranges from 20 mm (0.8 in) in the driest month (February) to 70 mm (2.8 in) in the wettest (August). Here is the average precipitation.
Vaasa - Average precipitation| Month | Millimeters | Inches | Days |
|---|
| January | 30 | 1.2 | 8 |
|---|
| February | 20 | 0.8 | 6 |
|---|
| March | 25 | 1 | 7 |
|---|
| April | 25 | 1 | 6 |
|---|
| May | 35 | 1.4 | 7 |
|---|
| June | 40 | 1.6 | 6 |
|---|
| July | 60 | 2.4 | 9 |
|---|
| August | 70 | 2.8 | 10 |
|---|
| September | 60 | 2.4 | 11 |
|---|
| October | 50 | 2 | 10 |
|---|
| November | 50 | 2 | 11 |
|---|
| December | 40 | 1.6 | 9 |
|---|
| Year | 500 | 19.7 | 100 |
|---|
On average, there are around 1,780
sunshine hours per year. In summer, also due to the length of the days, the sunshine amount is quite good, and definitely better than in Norway. Here are the average sunshine hours per day.
Vaasa - Sunshine hours| Month | Average | Total |
|---|
January | 1 | 30 | February | 2.5 | 75 | March | 4 | 130 | April | 6.5 | 190 | May | 9 | 280 | June | 10 | 305 | July | 9 | 285 | August | 7 | 220 | September | 4.5 | 130 | October | 2.5 | 85 | November | 1.5 | 40 | December | 0.5 | 20 | Year | 4.9 | 1785 |
The
sea temperature ranges between 0 °C (32 °F) and 15 °C (59 °F). So, it is cold all year round. It is useful to recall that sea water freezes at about -2 °C (28.5 °F). Here are the average sea temperatures.
Vaasa - Sea temperature| Month | Celsius (°C) | Fahrenheit (°F) |
|---|
January | 1.5 | 35 | February | 0.5 | 33 | March | 0 | 32 | April | 1 | 34 | May | 3 | 38 | June | 8 | 46 | July | 13.5 | 56 | August | 15 | 59 | September | 12.5 | 54 | October | 8.5 | 47 | November | 5 | 41 | December | 3 | 37 | Year | 6 | 42.8 |
![]()
Best Time
The
best time to visit Vaasa is the
summer, from June to August, since it is the mildest season. However, you must take into account some rainy days and a bit of cold at night.