Climate Overview
Osaka has a humid-subtropical climate with hot, humid Jul–Aug around 32–34°C and cool 10°C winters. The Jun tsuyu plum rains peak at 217mm; Sep typhoon rains add another 169mm. Late Mar–Apr (cherry blossoms) and Oct–Nov deliver the driest, most walkable weather for Dotonbori and castle grounds.
Monthly Climate
Temperature range, rainfall, and humidity by month
Monthly Data
| Month | High | Low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 10° | 2.4° | 25mm | 68% |
| Feb | 8.7° | 1° | 26mm | 67% |
| Mar | 15° | 6.4° | 77mm | 71% |
| Apr | 19.6° | 10.1° | 84mm | 68% |
| May | 23.3° | 15.1° | 234mm | 72% |
| Jun | 28° | 20.9° | 262mm | 76% |
| Jul | 33.4° | 25.7° | 114mm | 68% |
| Aug | 33.7° | 26.2° | 164mm | 68% |
| Sep | 30.8° | 23.8° | 212mm | 74% |
| Oct | 24.1° | 17.3° | 249mm | 77% |
| Nov | 17.4° | 9.2° | 31mm | 77% |
| Dec | 13° | 4.7° | 55mm | 76% |
When to Visit
Experiences to seek out and peak periods to plan around
Experiences & Highlights
Nishinomaru Garden's 300 sakura peak around 31 Mar – 5 Apr as highs climb from 15°C to 20°C; evening illuminations run late and the Okawa river cruise threads through a blossom tunnel.
Japan's top-three festival on 24–25 Jul ends with 5,000 fireworks and 100 boats on the Okawa; expect 32°C heat and 79% humidity — bring a uchiwa fan and hydrate.
November is the driest month (62mm avg) with comfortable 18°C highs — ideal for Kuromon Market grazing and fall-foliage strolls at Minoo Park's waterfall trail.
9–11 Jan at Imamiya Ebisu Shrine, where a million worshippers buy lucky bamboo for business fortune; bundle up — January averages 10°C highs and 3°C lows.
Peak Periods & Travel Advisories
June and July average 217mm and 203mm rainfall with humidity climbing to 79%; indoor picks like the Umeda Sky Building and Kaiyukan Aquarium cope well with the downpours.
Domestic travel surges push shinkansen seats and central hotels to double rates; book reserved seats 4+ weeks out or day-trip from Kyoto.
Hotel prices jump 50–80% around hanami; Osaka Castle Park and the Japan Mint's cherry passage hit capacity by mid-morning — go at dawn or after 5pm.
Japan Destination Comparison
Compare climate across destinations in Japan
| City | Avg High | Avg Low | Annual Rain | Season Overview |
|---|---|---|---|---|
🇯🇵 Osaka | 21° | 14° | 1533 mm | |
🇯🇵 Kyoto | 21° | 13° | 1426 mm | |
🇯🇵 Okinawa | 26° | 21° | 1756 mm | |
🇯🇵 Tokyo | 21° | 14° | 1117 mm |
Official Resources
Government portals and tourism boards for Osaka, Japan