Jan · Feb
Mild coastal winter, but indoor spaces can feel chilly
Avg low 2°C / high 9-10°C · Rainy days: 4-6 per month / rainfall around 40-70 mm
- • Compared to Seoul, true sub-zero days are rare and overall it feels milder.
- • Older buildings and some accommodations have weaker heating, so indoors can feel colder than you expect.
- • Wind makes it feel colder, so a scarf and gloves improve comfort a lot.
Suggested outfits
- · Thick coat or padded jacket
- · Heat-tech or warm knit layers
- · Scarf, beanie, gloves
A note for travelers
Many visitors assume Osaka will be warm and under-pack, then end up feeling cold indoors—plan at least one full winter outfit.
Mar · Apr
Full spring and cherry blossom season — peak travel time
Avg low 5-10°C / high 14-20°C · Rainy days: 8-10 per month / rainfall around 100-130 mm
- • From mid-March daytime temperatures rise quickly, and by April it fully feels like spring.
- • Blue skies and cherry blossoms make it a great time for photos and walks, and midday can feel warm with light clothing.
- • Mornings and evenings are still cool, so a light outer layer helps with temperature changes.
Suggested outfits
- · Light coat or trench coat
- · Knit or sweatshirt with a thin inner layer
- · Comfortable sneakers for blossom viewing
A note for travelers
During cherry blossom season (late March to early April), flights and hotels get expensive—book early if possible.
May · Jun
Early summer with the rainy season starting
Avg low 15-20°C / high 25-28°C · Rainy days: 8-11 per month / rainfall around 120-190 mm
- • The rainy season starts between late May and June, bringing many “warm but sticky” days.
- • Even if temperatures are not very high, humidity can make it feel stuffy.
- • You’ll see everything from brief showers to long, drizzly days.
Suggested outfits
- · Breathable T-shirts or shirts
- · Light cardigan or windbreaker
- · Shoes or sandals that can get wet
A note for travelers
Keep a compact umbrella or light raincoat in your bag so you can react flexibly to sudden showers.
Jul · Aug
Peak summer — hot, humid, and very sunny
Avg low 24-25°C / high 32-33°C · Rainy days: 7-9 per month / rainfall around 100-160 mm
- • Many days have a “feels like” temperature above 35°C with high humidity.
- • Rain from the rainy season and typhoons can bring short but intense downpours.
- • Indoor spaces often have strong air-conditioning, so it’s common to feel hot outside and cold inside.
Suggested outfits
- · Very light short sleeves or tank tops
- · Breathable linen/cotton shorts
- · Thin cardigan or shirt for indoors
A note for travelers
Hat, sunglasses, and sunscreen are essential; plan long outdoor activities for mornings or evenings to protect your energy.
Sep · Oct
Comfortable, breezy autumn — another great time to visit
Avg low 15-21°C / high 23-29°C · Rainy days: 8-10 per month / rainfall around 140-155 mm
- • September still feels like late summer, but days gradually become cooler and nicer for walking.
- • By October, temperature swings shrink and a single T-shirt can be enough during the day.
- • There is still a fair amount of rain in early to mid-October, so an umbrella is a good idea.
Suggested outfits
- · T-shirt with a light outer layer
- · Light shirts or sweatshirts
- · Comfortable walking shoes
A note for travelers
If you want to avoid peak summer crowds and heat, September-October is one of the most comfortable times to enjoy Osaka.
Nov · Dec
Late autumn foliage into early winter — cool and fairly dry
Avg low 4-9°C / high 12-18°C · Rainy days: 5-6 per month / rainfall around 55-80 mm
- • Mornings and evenings feel quite chilly, but midday sunshine can still feel pleasantly warm.
- • Winters are milder than in Seoul and significant snowfall is rare in the city.
- • Cafés and restaurants may not be strongly heated, so sitting still can feel a bit cool.
Suggested outfits
- · Coat or thick jacket
- · Sweaters or sweatshirts
- · Scarf or muffler for extra warmth
A note for travelers
During the autumn foliage season (around mid-November), popular spots can be very crowded—early visits help avoid the worst crowds.
