Climate · Onomichi

Onomichi in August

Hot and damp, as the days shorten.

Typical weather, averaged over 30 years

August in Onomichi is hot: highs near 89°F, lows near 77°F. Rain falls on about two days a week, more often as the month goes on, and the days shorten by 54 minutes from the first week to the last.August in Onomichi is hot: highs near 32°C, lows near 25°C. Rain falls on about two days a week, more often as the month goes on, and the days shorten by 54 minutes from the first week to the last.

High
89°F32°Caverage
Low
77°F25°Caverage
Wet days
2a week · 35% of days
Daylight
13h 23mon average

Is August a good time to visit Onomichi?


August sits outside Onomichi's best months, which run in two parts: May to June, or October. Expect hot days and rain on about two days a week.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How August sits in the year

week by week

Temperature

Highs near 89°F in August, against 51°F to 89°F through the year.Highs near 32°C in August, against 11°C to 32°C through the year.

Chance of a wet day

35% of days in August, against 29% to 46% through the year.

Cloud cover

57% cover in August, against 38% to 68% through the year.

Daylight

13h 23m in August, against 9h 54m to 14h 24m through the year.

Week by week, lightly smoothed, with August shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side


  1. July85°29°low 74°low 23°3 wet days a weekRain on about three days a week.
  2. August89°32°low 77°low 25°2 wet days a weekRain on about two days a week.
  3. September84°29°low 71°low 22°3 wet days a weekRain on about three days a week.

Where Onomichi sits, in August

Asia/Tokyo

this place
typical high in August 40°F4°C95°F35°C
Sunrise, mid-August
5:28 AMsets 6:57 PM
Above the sea
0 mlow-lying
Latitude
34.3°Nnorthern hemisphere
Nearest of ours
Naoshima85 km east

The land around Onomichi, shaded by its typical high in August, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Japan in August

high · low · wet days

Typical weather, averaged over 30 years (1995–2024), read 8 km west of Onomichi. Its own grid square is mostly sea and holds only a daily average, so the page reads the nearest square with a true high and low near the town's height. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.