Porvoo Weather in October
Average highs run from 12°C on October 1 to 5°C on October 31, and lows from 6°C to 1°C. Normal precipitation for the month is 78 mm over about 12 wet days.
October day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
October at a glance
- Average high
- 8°C
- Average low
- 3°C
- Precipitation
- 78 mm
- Record high
- 20°COct 15, 2001
- Record low
- -15°COct 22, 2002
- Daylight
- 11 h 27 min to 8 h 45 min
- Cloud cover
- 75%
- Humidity
- 91%
- Dew point
- 4°C
- Wind
- 9.7 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Oct 1 | 12°C | 6°C | 17°C 1975 | -4°C 1978 | 41% |
| Oct 2 | 12°C | 6°C | 19°C 1985 | -4°C 1976 | 42% |
| Oct 3 | 11°C | 6°C | 18°C 1984 | -6°C 1976 | 44% |
| Oct 4 | 11°C | 5°C | 17°C 1973 | -6°C 2002 | 45% |
| Oct 5 | 11°C | 5°C | 18°C 2005 | -3°C 2018 | 45% |
| Oct 6 | 11°C | 5°C | 17°C 1959 | -9°C 1979 | 45% |
| Oct 7 | 10°C | 5°C | 16°C 1972 | -4°C 1968 | 45% |
| Oct 8 | 10°C | 4°C | 15°C 1964 | -5°C 2018 | 44% |
| Oct 9 | 10°C | 4°C | 15°C 2001 | -8°C 1959 | 44% |
| Oct 10 | 10°C | 4°C | 17°C 2018 | -5°C 1986 | 44% |
| Oct 11 | 9°C | 4°C | 16°C 2024 | -7°C 1968 | 44% |
| Oct 12 | 9°C | 4°C | 15°C 1961 | -7°C 1973 | 43% |
| Oct 13 | 9°C | 3°C | 17°C 1978 | -5°C 1959 | 42% |
| Oct 14 | 8°C | 3°C | 16°C 2018 | -5°C 1973 | 41% |
| Oct 15 | 8°C | 3°C | 20°C 2001 | -7°C 1971 | 42% |
| Oct 16 | 8°C | 2°C | 15°C 1959 | -6°C 1971 | 40% |
| Oct 17 | 7°C | 2°C | 15°C 1969 | -5°C 1973 | 40% |
| Oct 18 | 7°C | 2°C | 14°C 2018 | -6°C 1973 | 40% |
| Oct 19 | 7°C | 2°C | 13°C 1980 | -10°C 2002 | 40% |
| Oct 20 | 7°C | 2°C | 12°C 2005 | -14°C 2002 | 41% |
| Oct 21 | 6°C | 1°C | 13°C 2024 | -13°C 2002 | 43% |
| Oct 22 | 6°C | 1°C | 13°C 2024 | -15°C 2002 | 43% |
| Oct 23 | 6°C | 1°C | 13°C 1989 | -13°C 2002 | 43% |
| Oct 24 | 6°C | 1°C | 12°C 2019 | -11°C 2003 | 43% |
| Oct 25 | 6°C | 1°C | 14°C 1961 | -9°C 1968 | 43% |
| Oct 26 | 5°C | 1°C | 13°C 1961 | -7°C 1968 | 43% |
| Oct 27 | 5°C | 1°C | 12°C 2020 | -14°C 2003 | 43% |
| Oct 28 | 5°C | 1°C | 14°C 1961 | -10°C 1968 | 43% |
| Oct 29 | 5°C | 1°C | 13°C 2022 | -9°C 1966 | 44% |
| Oct 30 | 5°C | 1°C | 12°C 1985 | -11°C 1966 | 45% |
| Oct 31 | 5°C | 1°C | 11°C 1964 | -15°C 1992 | 46% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+3).
- October 1
- sunrise 7:23 AM, sunset 6:50 PM
- October 31
- sunrise 7:38 AM, sunset 4:23 PM
Other months
Sources
Records: NOAA GHCN-Daily, station FIE00142241, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.