World Resorts Japan Osaka Weather

Osaka weather in May

Weather in Osaka: May

Average day temperature: 74.1°F
Average night temperature: 60.4°F
Sea water temperature: 64.4°F
Number of sunny days: 16 days
Day length: 13.6 - 14.3 hours
Number of rainy days: 5 days
Precipitation totals: 3.3 in.

Air temperature in May, °F

Show year:
2025
2024
2023

The highest day temperature during May of 2025 was 79°F. At the same time the lowest night temperature was 51°F. Daily and nightly averages during May were 71.5°F and 61.8°F.

Sea water temperature in Osaka in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 65.1°F. The highest and lowest sea temperatures during the month were 68.4°F and 59.7°F.

Sunny, partly cloudy and cloudy days

Mostly all days in May are sunny but cloudy days are also possible.

Precipitation total in May, in.

Precipitation total value in Osaka in May is 3.4 in. Other months of the year show relatively similar values.

Wind speed in May, mph

The average wind speed value in May is 6.3 mph It makes May 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 May is: 7.7.

Best time for vacation in Osaka

Sunniest months:
May 16 days
August 16 days
October 15 days
Warmest months:
August 91.8 °F
July 88.5 °F
September 84.6 °F
Warmest sea temp:
August 82.6 °F
September 79.5 °F
July 79.3 °F
Coldest months:
January 46.7 °F
February 48.5 °F
December 50.8 °F
Rainiest months:
June 7 days
July 7 days
September 5 days
Windiest months:
December 7.4 mph
February 7.4 mph
January 7.3 mph

Osaka on a weather map

Osaka
+45°F
SW 1 mph
Feels like: +45°F
Precip.: 0%
Places in Japan:
Name
°F
+43°F
+48°F
+50°F
+37°F
+43°F
+43°F
+41°F
+39°F
+63°F
+45°F
+30°F
+46°F
+41°F
+43°F
+36°F
24 Hours Forecast
Osaka
Local time: 23:48
December 06, saturday
0000
45°F
SW
1 mph
0300
43°F
NW
2 mph
0600
41°F
W
3 mph
0900
45°F
W
3 mph
1200
50°F
NE
4 mph
1500
52°F
NE
7 mph
1800
52°F
NE
5 mph
2100
48°F
NW
2 mph
Units of measurement: °C / °F