Iwanuma Weather in October
Average highs run from 24°C on October 1 to 17°C on October 31, and lows from to . Normal precipitation for the month is 146 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
- 20°C
- Precipitation
- 146 mm
- Record high
- 30°COct 2, 1998
- Record low
- 1°COct 27, 1952
- Daylight
- 11 h 48 min to 10 h 38 min
- Cloud cover
- 66%
- Humidity
- 78%
- Dew point
- 13°C
- Wind
- 18.7 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 | 24°C | 29°C 2018 | 10°C 1965 | 46% | |
| Oct 2 | 23°C | 30°C 1998 | 9°C 1965 | 44% | |
| Oct 3 | 23°C | 27°C 1984 | 9°C 1967 | 44% | |
| Oct 4 | 22°C | 27°C 2002 | 6°C 1957 | 43% | |
| Oct 5 | 21°C | 27°C 1990 | 6°C 1954 | 43% | |
| Oct 6 | 21°C | 26°C 1968 | 7°C 1966 | 43% | |
| Oct 7 | 21°C | 25°C 2002 | 6°C 1969 | 44% | |
| Oct 8 | 21°C | 14°C | 27°C 1980 | 6°C 1978 | 43% |
| Oct 9 | 21°C | 27°C 1952 | 5°C 1954 | 42% | |
| Oct 10 | 21°C | 13°C | 27°C 1951 | 6°C 1954 | 42% |
| Oct 11 | 20°C | 27°C 2010 | 7°C 1968 | 42% | |
| Oct 12 | 21°C | 30°C 1999 | 5°C 1969 | 40% | |
| Oct 13 | 21°C | 27°C 1994 | 5°C 1969 | 40% | |
| Oct 14 | 20°C | 25°C 1994 | 4°C 1978 | 38% | |
| Oct 15 | 20°C | 27°C 1998 | 5°C 1954 | 38% | |
| Oct 16 | 20°C | 26°C 2011 | 5°C 1953 | 36% | |
| Oct 17 | 20°C | 26°C 1961 | 5°C 1974 | 37% | |
| Oct 18 | 20°C | 27°C 1998 | 3°C 1962 | 38% | |
| Oct 19 | 19°C | 10°C | 26°C 1979 | 3°C 1957 | 39% |
| Oct 20 | 20°C | 26°C 1997 | 3°C 1970 | 38% | |
| Oct 21 | 19°C | 28°C 1997 | 3°C 1970 | 38% | |
| Oct 22 | 19°C | 23°C 1973 | 3°C 1962 | 39% | |
| Oct 23 | 18°C | 27°C 2011 | 3°C 1951 | 38% | |
| Oct 24 | 18°C | 10°C | 25°C 1959 | 3°C 1958 | 38% |
| Oct 25 | 18°C | 25°C 1970 | 3°C 1961 | 38% | |
| Oct 26 | 18°C | 26°C 2016 | 2°C 1964 | 39% | |
| Oct 27 | 17°C | 23°C 1972 | 1°C 1952 | 41% | |
| Oct 28 | 18°C | 9°C | 23°C 1987 | 3°C 2004 | 39% |
| Oct 29 | 18°C | 25°C 1965 | 2°C 1960 | 38% | |
| Oct 30 | 18°C | 24°C 1996 | 3°C 1964 | 38% | |
| Oct 31 | 17°C | 27°C 1977 | 2°C 1964 | 37% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+9).
- October 1
- sunrise 5:32 AM, sunset 5:20 PM
- October 31
- sunrise 6:01 AM, sunset 4:39 PM
Other months
Sources
Records: NOAA GHCN-Daily, station JA000047590, 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.