Japan · Asia
What to Wear in Osaka
Month-by-month temperatures, rainfall, and clothing recommendations for Osaka, Japan. Find out what to pack for every season.
Warmest month
August
33°C / 91°F
Coolest month
January
9°C / 48°F
Wettest month
June
201 mm
Best months
April, May, June
Monthly climate & clothing guide
| Month | High | Low | Rain | Humidity | Climate |
|---|---|---|---|---|---|
| January | 9°C / 48°F | 2°C / 36°F | 45 mm | moderate | Cold |
| February | 10°C / 50°F | 2°C / 36°F | 61 mm | moderate | Cold |
| March | 14°C / 57°F | 5°C / 41°F | 104 mm | moderate | Cool |
| April | 20°C / 68°F | 10°C / 50°F | 104 mm | moderate | Mild |
| May | 25°C / 77°F | 15°C / 59°F | 146 mm | moderate | Warm |
| June | 28°C / 82°F | 20°C / 68°F | 201 mm | high | Warm |
| July | 32°C / 90°F | 24°C / 75°F | 157 mm | high | Hot & Humid |
| August | 33°C / 91°F | 24°C / 75°F | 92 mm | high | Hot & Humid |
| September | 29°C / 84°F | 21°C / 70°F | 161 mm | high | Warm |
| October | 23°C / 73°F | 14°C / 57°F | 112 mm | moderate | Mild |
| November | 17°C / 63°F | 9°C / 48°F | 69 mm | moderate | Cool |
| December | 12°C / 54°F | 4°C / 39°F | 43 mm | moderate | Cool |
Seasonal clothing guide for Osaka
Winter (Dec-Feb)
ColdAverage highs 10°C (50°F), lows 3°C (37°F). Total seasonal rainfall: 149 mm.
Full winter layering required. Multiple insulating layers, a weatherproof outer shell, and warm accessories are essential for comfort.
Spring (Mar-May)
MildAverage highs 20°C (68°F), lows 10°C (50°F). Total seasonal rainfall: 354 mm.
Spring and fall conditions — comfortable but changeable. A light layering system handles temperature swings between morning, midday, and evening.
Summer (Jun-Aug)
Hot & HumidAverage highs 31°C (88°F), lows 23°C (73°F). Total seasonal rainfall: 450 mm.
Lightweight, breathable fabrics that wick moisture and dry fast. Minimize layers — one top and one bottom is all you need most days.
Fall (Sep-Nov)
MildAverage highs 23°C (73°F), lows 15°C (59°F). Total seasonal rainfall: 342 mm.
Spring and fall conditions — comfortable but changeable. A light layering system handles temperature swings between morning, midday, and evening.
Related packing guide
What to Pack for Japan
Our detailed packing guide covers clothing, gear, and cultural considerations for this destination.
Read the full packing guideFAQ
What should I wear when visiting Osaka?
What to wear in Osaka depends on the month. The warmest month is August (avg high 33°C / 91°F) and the coldest is January (avg high 9°C / 48°F). Check the month-by-month table above for specific clothing recommendations.
What is the best time to visit Osaka?
For comfortable weather and easy packing, the best months to visit Osaka are April, May, June, September, October. These months have mild to warm temperatures with manageable rainfall.
Does it rain a lot in Osaka?
The wettest month in Osaka is June with an average of 201 mm of rainfall. A packable rain jacket is essential during the wet season.
Do I need warm clothes for Osaka?
Yes. Osaka's coldest month is January with average highs of 9°C (48°F). You will need a proper layering system with insulation if visiting during the cooler months.
Ready to pack for Osaka?
Use our interactive tool to compare climates and get layering advice.
Open Climate Calendar