World Resorts Japan Hiroshima Weather

Hiroshima Sea Temperature in May

Average sea water temperature in May:
+63.3°F
Minimum sea water temperature in May: 69.6°F
Maximum sea water temperature in May: 57.7°F

Daily sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 64.6°F. The highest and lowest sea temperatures during the month were 69.1°F and 57.9°F.

Monthly sea water temperature in Hiroshima, °F

Which Japan resorts have warmest sea in May?

Place name May 2026 May 2025
Okinawa 75.4°F 76.2°F
Nagasaki 69.1°F 66.0°F
Tokyo 69.0°F 66.8°F
Fukuoka 68.7°F 64.7°F
Yokohama 68.5°F 66.1°F
Nagoya 68.0°F 65.9°F
Kyoto 67.7°F 64.8°F
Kamakura 67.7°F 65.7°F
Atami 67.1°F 65.3°F
Nara 67.0°F 64.9°F
Hakone 67.0°F 65.5°F
Osaka 66.5°F 65.1°F
Kobe 65.6°F 64.1°F
Hiroshima 64.6°F 62.9°F
Sapporo 52.1°F 52.4°F
Noboribetsu 47.9°F 48.5°F

Best time for vacation in Hiroshima

Sunniest months:
May 16 days
October 15 days
April 14 days
Warmest months:
August 88.3 °F
July 85.7 °F
September 81.7 °F
Warmest sea temp:
August 81.3 °F
September 78.4 °F
July 77.7 °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

Current weather
00:25
Hiroshima
+54°F
S 5 mph
Feels like: +52°F
Precip.: 10%
Places in Japan:
Name
°F
Atami
+64°F
Yokohama
+70°F
Kamakura
+70°F
Kyoto
+61°F
Kobe
+63°F
Nagasaki
+68°F
Nagoya
+68°F
Nara
+63°F
Okinawa
+77°F
Osaka
+66°F
Sapporo
+46°F
Tokyo
+70°F
Fukuoka
+59°F
Hakone
+70°F
Hiroshima
+54°F
all places
24 Hours Forecast
Hiroshima
Local time: 00:25
October 09, friday
0300
52°F
S
5 mph
0600
52°F
S
5 mph
0900
70°F
SW
3 mph
1200
79°F
N
2 mph
1500
77°F
N
4 mph
1800
63°F
N
1 mph
2100
59°F
S
2 mph
October 10, saturday
0000
59°F
S
2 mph
Units of measurement: °C / °F