Measurements:
°C
°F
Porvoo
56°F
NE 14 mph
Feels like: 52°F
Precip: 26%
World Resorts Finland Porvoo Weather August Weather in Porvoo

Porvoo Weather: August

Average Day Temperature: 67.4°F
Average Night Temperature: 61.3°F
Sea Water Temperature: 65.0°F
Number of Sunny Days: 12 days
Sunshine Hours: 14.3 - 16.9 hours
Number of Rainy Days: 4 days
Precipitation Totals: 2.2 in

Air Temperature in August, °F

Select Year: 2026 2025 2024

The highest day temperature in August 2026 was 69°F. The lowest night temperature was 25°F. The average values for day and night temperatures during August were 65.0°F и 59.6°F respectivly.

Porvoo Water Sea Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Porvoo was 62.3°F. The maximum and minimum values were 57.0°F and 68.2°F respectively.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during August. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in August, in

Precipitation total in August for Porvoo is 2.2 in. It makes august one of the most rainy months of the year.

Wind Speed in August, mph

The average wind speed in August is 11.6 mph.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Porvoo in August is 9.3 hours.

Best Time to Visit Porvoo
The most sunny months:
June 15 days
July 14 days
May 13 days
The most warm months:
July 67.9 °F
August 67.4 °F
June 60.9 °F
Warmest sea temperature:
August 65.0 °F
July 64.5 °F
September 59.4 °F
The most cold months:
February 24.8 °F
January 25.0 °F
March 31.4 °F
The most rainy months:
August 4 days
October 4 days
September 4 days
The most windy months:
December 14 mph
October 14 mph
November 14 mph

Porvoo on the Weather Map

Finland Resorts:
NAME
F°
Espoo +52
Helsinki +54
Imatra +48
Juvaskyla +48
Kemi +52
Kotka +56
Lahti +50
Lappeenranta +50
Oulu +52
Pori +56
Porvoo +56
Savolinna +48
Turku +58
Vaasa +56
Vantaa +54
24 Hours Weather Forecast
Porvoo
Local time: 03:23
29 sep, tuesday
0600 56°F
N
16 mph
0900 56°F
N
15 mph
1200 56°F
NE
14 mph
1500 58°F
NE
13 mph
1800 58°F
NE
13 mph
2100 58°F
NE
10 mph
30 sep, wednesday
0000 58°F
SE
4 mph
0300 58°F
S
7 mph