Siilinjärvi Weather in April
Average highs run from 3°C on April 1 to 10°C on April 30, and lows from -5°C to 0°C. Normal precipitation for the month is 51 mm over about 12 wet days.
April day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
April at a glance
- Average high
- 7°C
- Average low
- -2°C
- Precipitation
- 51 mm
- Record high
- 22°CApr 25, 2001
- Record low
- -21°CApr 3, 1965
- Daylight
- 13 h 28 min to 16 h 29 min
- Cloud cover
- 66%
- Humidity
- 90%
- Dew point
- 0°C
- Wind
- 11.9 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 |
|---|---|---|---|---|---|
| Apr 1 | 3°C | -5°C | 10°C 2025 | -20°C 1998 | 37% |
| Apr 2 | 3°C | -5°C | 11°C 2008 | -19°C 1998 | 38% |
| Apr 3 | 3°C | -4°C | 14°C 2025 | -21°C 1965 | 39% |
| Apr 4 | 4°C | -4°C | 12°C 2005 | -16°C 1960 | 38% |
| Apr 5 | 5°C | -3°C | 13°C 2005 | -15°C 1961 | 37% |
| Apr 6 | 5°C | -3°C | 12°C 2019 | -14°C 1998 | 37% |
| Apr 7 | 5°C | -3°C | 15°C 2020 | -17°C 1985 | 38% |
| Apr 8 | 5°C | -3°C | 12°C 1996 | -15°C 2012 | 38% |
| Apr 9 | 5°C | -4°C | 10°C 2023 | -19°C 1965 | 38% |
| Apr 10 | 5°C | -3°C | 11°C 2024 | -15°C 1977 | 39% |
| Apr 11 | 5°C | -3°C | 13°C 1991 | -20°C 1988 | 40% |
| Apr 12 | 6°C | -2°C | 14°C 1991 | -18°C 1988 | 40% |
| Apr 13 | 6°C | -2°C | 15°C 1991 | -15°C 1997 | 41% |
| Apr 14 | 6°C | -1°C | 17°C 2026 | -13°C 1974 | 41% |
| Apr 15 | 5°C | -2°C | 17°C 2007 | -14°C 1988 | 40% |
| Apr 16 | 7°C | -2°C | 20°C 2007 | -15°C 1966 | 41% |
| Apr 17 | 6°C | -1°C | 18°C 2025 | -12°C 1986 | 40% |
| Apr 18 | 6°C | -1°C | 16°C 1999 | -10°C 1975 | 40% |
| Apr 19 | 7°C | -1°C | 16°C 2004 | -11°C 1979 | 41% |
| Apr 20 | 7°C | -1°C | 19°C 1999 | -14°C 1966 | 42% |
| Apr 21 | 8°C | -1°C | 19°C 1999 | -11°C 1979 | 43% |
| Apr 22 | 9°C | 0°C | 16°C 1965 | -10°C 1966 | 42% |
| Apr 23 | 8°C | -1°C | 19°C 2019 | -11°C 1981 | 41% |
| Apr 24 | 9°C | 0°C | 18°C 2011 | -10°C 1985 | 42% |
| Apr 25 | 11°C | 0°C | 22°C 2001 | -13°C 1972 | 42% |
| Apr 26 | 11°C | 0°C | 22°C 2001 | -12°C 1971 | 41% |
| Apr 27 | 11°C | 1°C | 19°C 2002 | -12°C 1971 | 41% |
| Apr 28 | 10°C | 2°C | 20°C 2001 | -10°C 1971 | 40% |
| Apr 29 | 10°C | 1°C | 17°C 1959 | -8°C 1978 | 40% |
| Apr 30 | 10°C | 0°C | 19°C 1993 | -9°C 1981 | 40% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+3).
- April 1
- sunrise 6:30 AM, sunset 7:58 PM
- April 30
- sunrise 4:53 AM, sunset 9:22 PM
Other months
Sources
Records: NOAA GHCN-Daily, station FIE00144702, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.