Isumi Weather in October
Average highs run from 24°C on October 1 to 21°C on October 31, and lows from 23°C to 19°C. Normal precipitation for the month is 233 mm over about 16 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
- 23°C
- Average low
- 21°C
- Precipitation
- 233 mm
- Record high
- 27°COct 9, 1952
- Record low
- 6°COct 19, 1957
- Daylight
- 11 h 50 min to 10 h 47 min
- Cloud cover
- 72%
- Humidity
- 76%
- Dew point
- 18°C
- Wind
- 26.3 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 | 23°C | 26°C 1955 | 15°C 1952 | 54% |
| Oct 2 | 24°C | 23°C | 26°C 1958 | 11°C 1952 | 54% |
| Oct 3 | 24°C | 23°C | 25°C 1956 | 11°C 1957 | 54% |
| Oct 4 | 24°C | 22°C | 26°C 1955 | 9°C 1957 | 53% |
| Oct 5 | 24°C | 22°C | 26°C 1955 | 10°C 1954 | 52% |
| Oct 6 | 24°C | 22°C | 23°C 1953 | 10°C 1954 | 53% |
| Oct 7 | 24°C | 22°C | 24°C 1957 | 11°C 1953 | 54% |
| Oct 8 | 24°C | 22°C | 23°C 1957 | 11°C 1958 | 55% |
| Oct 9 | 24°C | 22°C | 27°C 1952 | 9°C 1958 | 54% |
| Oct 10 | 24°C | 22°C | 25°C 1956 | 13°C 1958 | 53% |
| Oct 11 | 23°C | 22°C | 26°C 1956 | 13°C 1954 | 53% |
| Oct 12 | 23°C | 22°C | 24°C 1956 | 10°C 1954 | 54% |
| Oct 13 | 23°C | 21°C | 24°C 1958 | 8°C 1954 | 53% |
| Oct 14 | 23°C | 21°C | 25°C 1958 | 8°C 1954 | 53% |
| Oct 15 | 23°C | 21°C | 26°C 1958 | 8°C 1954 | 52% |
| Oct 16 | 23°C | 21°C | 25°C 1957 | 11°C 1953 | 51% |
| Oct 17 | 23°C | 21°C | 23°C 1955 | 11°C 1958 | 49% |
| Oct 18 | 23°C | 21°C | 22°C 1955 | 7°C 1957 | 49% |
| Oct 19 | 23°C | 21°C | 24°C 1958 | 6°C 1957 | 48% |
| Oct 20 | 22°C | 20°C | 24°C 1955 | 9°C 1957 | 48% |
| Oct 21 | 22°C | 20°C | 22°C 1954 | 8°C 1956 | 48% |
| Oct 22 | 22°C | 20°C | 23°C 1952 | 9°C 1957 | 48% |
| Oct 23 | 22°C | 20°C | 22°C 1953 | 7°C 1957 | 46% |
| Oct 24 | 22°C | 20°C | 19°C 1956 | 10°C 1952 | 44% |
| Oct 25 | 22°C | 20°C | 22°C 1953 | 12°C 1958 | 44% |
| Oct 26 | 22°C | 20°C | 19°C 1953 | 8°C 1956 | 44% |
| Oct 27 | 22°C | 20°C | 22°C 1955 | 6°C 1956 | 42% |
| Oct 28 | 22°C | 19°C | 24°C 1957 | 6°C 1958 | 41% |
| Oct 29 | 22°C | 19°C | 24°C 1955 | 9°C 1958 | 40% |
| Oct 30 | 22°C | 19°C | 22°C 1953 | 11°C 1958 | 40% |
| Oct 31 | 21°C | 19°C | 24°C 1956 | 8°C 1954 | 41% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+9).
- October 1
- sunrise 5:33 AM, sunset 5:23 PM
- October 31
- sunrise 5:58 AM, sunset 4:45 PM
Other months
Sources
Records: NOAA GHCN-Daily, station JAW00043321, 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.