Iwakuni climate

Iwakuni Weather in October

1991-2020 means of the daily record at Hiroshima (GHCN JA000047765), 30 km from Iwakuni

Average highs run from 27°C on October 1 to 20°C on October 31, and lows from to . Normal precipitation for the month is 105 mm over about 9 wet days.

October day by day

The normal high and low for each date, and the record, in °C.

Normal daily high and low temperature at Iwakuni, in °C, with the record for each date.010203040151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
24°C
Precipitation
105 mm
Record high
31°COct 1, 2019
Record low
3°COct 28, 1958
Daylight
11 h 51 min to 10 h 50 min
Cloud cover
68%
Humidity
78%
Dew point
14°C
Wind
12.6 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowRecord highRecord lowChance wet
Oct 127°C31°C 201912°C 197035%
Oct 227°C31°C 20168°C 195734%
Oct 327°C30°C 20199°C 195833%
Oct 426°C31°C 19619°C 195234%
Oct 525°C30°C 201610°C 195433%
Oct 625°C31°C 20189°C 197632%
Oct 725°C30°C 20259°C 196332%
Oct 825°C31°C 202510°C 196330%
Oct 925°C28°C 20259°C 198929%
Oct 1025°C15°C29°C 20008°C 196529%
Oct 1126°C31°C 20196°C 196930%
Oct 1225°C31°C 20258°C 195230%
Oct 1325°C30°C 20256°C 196929%
Oct 1424°C28°C 20256°C 195428%
Oct 1524°C28°C 20256°C 197328%
Oct 1624°C27°C 19614°C 196228%
Oct 1723°C28°C 20257°C 196228%
Oct 1824°C13°C29°C 20166°C 195728%
Oct 1923°C28°C 19616°C 195729%
Oct 2023°C28°C 20087°C 196529%
Oct 2123°C27°C 20157°C 199129%
Oct 2223°C28°C 19976°C 198428%
Oct 2322°C26°C 19977°C 198628%
Oct 2423°C26°C 19976°C 200329%
Oct 2523°C26°C 19706°C 198229%
Oct 2621°C25°C 19576°C 198229%
Oct 2721°C25°C 19896°C 195129%
Oct 2821°C11°C26°C 20123°C 195828%
Oct 2922°C25°C 19945°C 198028%
Oct 3021°C25°C 19774°C 197628%
Oct 3120°C26°C 19774°C 198627%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Iwakuni, in percent.0102030401102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+9).

October 1
sunrise 6:05 AM, sunset 5:56 PM
October 31
sunrise 6:29 AM, sunset 5:19 PM

Every day of October: sun and moon

Other months

Sources

Records: NOAA GHCN-Daily, station JA000047765, 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.