Iwamizawa Weather in April
Average highs run from 8°C on April 1 to 16°C on April 30, and lows from 0°C to .
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
- 12°C
- Record high
- 28°CApr 21, 1998
- Record low
- -8°CApr 3, 1960
- Daylight
- 12 h 43 min to 14 h 04 min
- Cloud cover
- 70%
- Humidity
- 82%
- Dew point
- 1°C
- Wind
- 16.9 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 | 8°C | 0°C | 16°C 1990 | -6°C 1953 | 38% |
| Apr 2 | 8°C | 16°C 1959 | -6°C 1978 | 38% | |
| Apr 3 | 9°C | 0°C | 17°C 1992 | -8°C 1960 | 38% |
| Apr 4 | 10°C | 18°C 1992 | -5°C 1952 | 38% | |
| Apr 5 | 10°C | 16°C 1952 | -7°C 1955 | 39% | |
| Apr 6 | 10°C | 21°C 1954 | -6°C 1969 | 40% | |
| Apr 7 | 9°C | 21°C 1998 | -5°C 1956 | 39% | |
| Apr 8 | 9°C | 18°C 1952 | -6°C 1964 | 38% | |
| Apr 9 | 11°C | 20°C 1959 | -4°C 1976 | 37% | |
| Apr 10 | 11°C | 19°C 2001 | -4°C 1958 | 36% | |
| Apr 11 | 11°C | 22°C 1990 | -4°C 1970 | 36% | |
| Apr 12 | 10°C | 21°C 1990 | -5°C 1967 | 37% | |
| Apr 13 | 11°C | 21°C 2009 | -4°C 1965 | 38% | |
| Apr 14 | 12°C | 22°C 1964 | -4°C 1958 | 39% | |
| Apr 15 | 12°C | 20°C 2002 | -3°C 1965 | 38% | |
| Apr 16 | 12°C | 20°C 1994 | -4°C 1967 | 39% | |
| Apr 17 | 13°C | 22°C 2019 | -2°C 1967 | 39% | |
| Apr 18 | 13°C | 25°C 2001 | -1°C 1969 | 39% | |
| Apr 19 | 12°C | 21°C 2001 | -2°C 1960 | 39% | |
| Apr 20 | 13°C | 25°C 1998 | -2°C 1955 | 38% | |
| Apr 21 | 14°C | 28°C 1998 | 0°C 1979 | 37% | |
| Apr 22 | 14°C | 24°C 1998 | -2°C 1956 | 37% | |
| Apr 23 | 14°C | 25°C 1998 | -1°C 1955 | 38% | |
| Apr 24 | 15°C | 23°C 2019 | -2°C 1952 | 37% | |
| Apr 25 | 15°C | 24°C 1999 | -2°C 1977 | 37% | |
| Apr 26 | 15°C | 24°C 1999 | -1°C 1952 | 38% | |
| Apr 27 | 14°C | 25°C 2015 | 0°C 1987 | 38% | |
| Apr 28 | 15°C | 23°C 1997 | -2°C 1954 | 38% | |
| Apr 29 | 16°C | 28°C 1961 | -1°C 1954 | 38% | |
| Apr 30 | 16°C | 26°C 2015 | -1°C 1965 | 39% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+9).
- April 1
- sunrise 5:16 AM, sunset 5:59 PM
- April 30
- sunrise 4:29 AM, sunset 6:33 PM
Other months
Sources
Records: NOAA GHCN-Daily, station JA000047412, 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.