In general the best time to visit Osaka is probably August, when the weather is usually great. The hottest months are July, August, September, while the coldest months are January, February, December.
Depending on the activities you want to experience, you may choose different months to visit:
The best time for a sun tanning holiday is July, August, September. Average maximum temperatures are up to +86°F in August and it has 3 sunny days on average.
In general, it’s pleasant to walk and do outdoor activities during May - October.
If you want to avoid wet weather, then your choice is July, August, September with the lowest chance of rain.
Average weather in Osaka in different months
This is the average weather in Osaka for each month based on historic data:
April, October usually has good weather. Average maximum temperature reaches +68°F during October.
In January, February, March, May, June, July, August, September, November, December the weather is average. Expect around 155 rainy days, and the precipitation amounts to approximately 222 mm in July.
Climate in Osaka
Here is the detailed breakdown of the climate in Osaka for each month:
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Maximum Temperature
+59°F
+68°F
+75°F
+81°F
+88°F
+91°F
+97°F
+99°F
+93°F
+86°F
+77°F
+68°F
Average Maximum Temperature
+43°F
+45°F
+52°F
+63°F
+72°F
+77°F
+84°F
+86°F
+79°F
+68°F
+59°F
+48°F
Minimum Temperature
+12°F
+10°F
+18°F
+27°F
+34°F
+43°F
+57°F
+59°F
+46°F
+32°F
+25°F
+18°F
Avg. water temperature
-
-
-
-
-
-
-
-
-
-
-
-
Humidity, %
72
70
69
68
71
76
80
77
77
74
74
73
Rain, mm
45
57
109
128
153
202
222
147
197
140
78
49
Snow, mm
8
12
4
0
0
0
0
0
0
0
0
2
Average wind speed, m/s
2
2
2
2
2
1
1
1
2
2
2
2
Sunny Days
2
1
3
4
3
1
1
3
3
6
6
4
Cloud Days
15
12
11
11
12
10
6
7
9
12
13
15
Rainy Days
10
10
16
15
15
19
24
22
18
13
11
10
Snowy Days
4
4
1
0
0
0
0
0
0
0
0
1
Average Temperature
Here are the average maximum and minimum temperatures in Osaka during the whole year:
The hottest month in Osaka is August with average maximum temperature going up to +86°F. The coldest month is January with the lowest temperatures of +30°F.
Humidity
The temperature feels different depending on humidity. Here is how humidity in Osaka looks throughout the year, in %:
The most humid month in Osaka is July with average humidity going up to 80%. The least humid month is April with an average humidity of 68%.
Rain
Amount of rainfall in mm. in Osaka during the whole year based on historical data:
The sunniest and driest month is October with approximately 6 sunny days and a total precipitation of around 140 mm. The rainiest and wettest month is July with approximately 24 rainy days and 222 mm of total precipitation.
Snow
Amount of snow in mm. in Osaka during the whole year based on historical data:
The snowiest month is February with approximately 4 snowy days.
FAQ
Frequently asked questions about the weather in Osaka:
What is the hottest month in Osaka?
The hottest month in Osaka is August with average maximum temperature of +86°F.
What is the coldest month in Osaka?
The coldest month in Osaka is January with minimum temperatures of +30°F.
Is Osaka worth visiting in winter?
Winter in Osaka could be a good time to visit, as the weather is generally ok.
When does it rain the least in Osaka?
if you're looking to visit Osaka when it rains the least, you should plan your trip for July, June, September. During this time, rainfall is rare with the driest month being January with only 45 mm of rain.
For this page, we’ve looked at the typical weather in Osaka, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.