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Climate · Onomichi

Onomichi in May

Warm and damp, as the days lengthen.

Typical weather, averaged over 30 years

May in Onomichi is warm: highs near 73°F, lows near 59°F. Rain falls on about two days a week, and the days lengthen by 40 minutes from the first week to the last.May in Onomichi is warm: highs near 23°C, lows near 15°C. Rain falls on about two days a week, and the days lengthen by 40 minutes from the first week to the last.

High
73°F23°Caverage
Low
59°F15°Caverage
Wet days
2a week · 33% of days
Daylight
13h 56mon average

Is May a good time to visit Onomichi?

Yes. May is one of Onomichi's best months (May to June, or October).

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 May sits in the year

week by week

Temperature

Highs near 73°F in May, against 51°F to 89°F through the year.Highs near 23°C in May, against 11°C to 32°C through the year.

Chance of a wet day

33% of days in May, against 29% to 46% through the year.

Cloud cover

56% cover in May, against 38% to 68% through the year.

Daylight

13h 56m in May, against 9h 54m to 14h 24m through the year.

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

Either side

  1. April66°19°low 50°low 10°3 wet days a weekRain on about three days a week.
  2. May73°23°low 59°low 15°2 wet days a weekRain on about two days a week.
  3. June79°26°low 67°low 19°3 wet days a weekRain on about three days a week.

Where Onomichi sits, in May

Asia/Tokyo
this place
typical high in May 40°F4°C95°F35°C
Sunrise, mid-May
5:06 AMsets 7:01 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 May, 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 May

high · low · wet days
See May on the planning mapThe whole year in Onomichi

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.