World Resorts Japan Hiroshima Weather

Hiroshima weather in June

Weather in Hiroshima: June

Average day temperature: 77.8°F
Average night temperature: 64.1°F
Sea water temperature: 69.7°F
Number of sunny days: 10 days
Day length: 14.3 - 14.5 hours
Number of rainy days: 9 days
Precipitation totals: 7.1 in.

Air temperature in June, °F

Show year:
2026
2025
2024

The highest day temperature during June of 2026 was 77°F. At the same time the lowest night temperature was 57°F. Daily and nightly averages during June were 72.7°F and 63.8°F.

Sea water temperature in Hiroshima in June, °F

Show year:
2026
2025
2024

The average sea water temperature in June of 2026 was 70.0°F. The highest and lowest sea temperatures during the month were 72.1°F and 68.0°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in June is almost equal.

Precipitation total in June, in.

Precipitation total value in Hiroshima in June is 6.5 in. Other months of the year show relatively similar values.

Wind speed in June, mph

The average wind speed value in June is 4.1 mph It makes June one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in June is: 6.9.

Best time for vacation in Hiroshima

Sunniest months:
May 16 days
October 15 days
April 14 days
Warmest months:
August 88.4 °F
July 85.8 °F
September 82.1 °F
Warmest sea temp:
August 81.2 °F
September 78.3 °F
July 77.6 °F
Coldest months:
January 46.3 °F
February 47.8 °F
December 49.7 °F
Rainiest months:
July 9 days
June 9 days
August 8 days
Windiest months:
December 5.9 mph
January 5.9 mph
February 5.6 mph

Hiroshima on a weather map

Hiroshima
+68°F
SW 2 mph
Feels like: +68°F
Precip.: 47%
Places in Japan:
Name
°F
+72°F
+72°F
+73°F
+68°F
+70°F
+68°F
+70°F
+68°F
+77°F
+70°F
+61°F
+72°F
+68°F
+72°F
+68°F
24 Hours Forecast
Hiroshima
Local time: 04:49
June 28, sunday
0600
68°F
SW
2 mph
0900
70°F
W
2 mph
1200
72°F
W
2 mph
1500
75°F
NW
4 mph
1800
72°F
N
4 mph
2100
66°F
SW
1 mph
June 29, monday
0000
64°F
SW
1 mph
0300
64°F
E
0 mph
Units of measurement: °C / °F