Weather in Osaka in May
As an Amazon Associate we earn from qualifying purchases. We also earn commission from other retail partners. Links below are affiliate links.
Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for May in Osaka.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youOsaka in May is pleasantly mild — daytime temperatures average 22.8°C, dropping to 14.4°C at night. The month is very wet, with around 13 rainy days, with roughly 9.0 hours of sunshine a day. It is one of the best months of the year to visit. For the complete picture, see the best time to visit Osaka — every month compared. Once you know when to go, find your Osaka packing list at 247PackingList.
Get ready for Osaka in May
Search flights to Osaka
Compare 100+ airlines for May — one search, best price.
Search Flights →Thermal travel layers
Pack proper layers — winters are genuinely cold and evenings drop fast year-round.
Check Price →What to pack for Osaka in May
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Compare all months in Osaka
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 9.3°C | 55.7mm | 10/10 |
| February | 10.2°C | 56.9mm | 10/10 |
| March | 15.0°C | 118.6mm | 9/10 |
| April | 18.4°C | 164.6mm | 9/10 |
| May | 22.8°C | 203.8mm | 8/10 |
| June | 26.7°C | 216.3mm | 8/10 |
| July | 30.4°C | 281.2mm | 8/10 |
| August | 32.5°C | 187.8mm | 9/10 |
| September | 29.6°C | 215.1mm | 8/10 |
| October | 22.6°C | 157.9mm | 9/10 |
| November | 17.7°C | 90.7mm | 10/10 |
| December | 11.6°C | 47.3mm | 10/10 |
Full month-by-month guide: best time to visit Osaka →
For facts about Japan — currency, language and dialling code — see our Japan country guide at 247CountryInfo. Travellers also find it useful to keep a Osaka travel guide to hand. Check clothing sizes in Japan before you shop.
Frequently Asked Questions
Is May a good time to visit Osaka?
May rates 8/10 for visiting Osaka — good time to visit. Expect average highs of 22.8°C, 203.8mm of rain across the month and about 9.0 hours of daily sunshine.
What is the temperature in Osaka in May?
In May, Osaka has average highs of 22.8°C (73.0°F) and average lows of 14.4°C (57.9°F).
Does it rain in Osaka in May?
Yes — May is one of the wetter months in Osaka, averaging 203.8mm of rain over roughly 13 rainy days. Pack for heavy showers.
What should I wear in Osaka in May?
For Osaka in May (22.8°C highs / 14.4°C lows), pack light layers plus sunscreen, t-shirts and light trousers or shorts, compact travel umbrella.
More essentials for Osaka in May
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
Check Price →Last updated:
Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.