Porvoo Weather: September
 |
Average Day Temperature: | 59.2°F |
|
Average Night Temperature: | 54.6°F |
|
Sea Water Temperature: | 59.4°F |
|
Number of Sunny Days: | 9 days |
| Sunshine Hours: | 11.5 - 14.2 hours | |
|
Number of Rainy Days: | 4 days |
| Precipitation Totals: | 2.0 in | |
| detailed information | ||
14 day weather
forecast
forecast
| Porvoo |
Sea Water
Temperature
Temperature
| Porvoo |
Air Temperature in September, °F
The highest day temperature in September 2026 was 64°F. The lowest night temperature was 47°F. The average values for day and night temperatures during September were 58.8°F и 56.3°F respectivly.
Porvoo Water Sea Temperature in September, °F
The average sea surface temperature in September 2026 for Porvoo was 58.6°F. The maximum and minimum values were 56.0°F and 61.4°F respectively.
Sunny, Cloudy and Gloomy days
You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Porvoo is 2.0 in.
Wind Speed in September, mph
The average wind speed in September is 12.7 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 September is 6.7 hours.
Porvoo on the Weather Map
Finland Resorts:
NAME
F°
| Espoo |  |
+52 |
| Helsinki | |
+54 |
| Imatra | |
+48 |
| Juvaskyla |  |
+48 |
| Kemi |  |
+52 |
| Kotka |  |
+58 |
| Lahti | |
+48 |
| Lappeenranta | |
+50 |
| Oulu | |
+54 |
| Pori | |
+54 |
| Porvoo | |
+58 |
| Savolinna | |
+48 |
| Turku | |
+56 |
| Vaasa | |
+56 |
| Vantaa | |
+54 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Porvoo
Local time: 00:55
29 sep, tuesday
| 0300 |  |
56°F | NE 14 mph |
| 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 |