Osaka · Month comparison
October vs May
October ranks #1 overall vs May at #8. Osaka's second-best month — excellent weather, Osaka Marathon, and the city quietly settling into its best season.
October
#1 of 12 months
Best match
Osaka's second-best month — excellent weather, Osaka Marathon, and the city quietly settling into its best season.
- ↑Near-ideal conditions: 22°C highs with low humidity and genuine sunshine — the most comfortable weather in Osaka's year outside of April, without April's cherry blossom crowds
- ↑Osaka Marathon (late October) brings a festive weekend to the city, with the race course passing Osaka Castle and Dotonbori; worth timing around even as a spectator
May
#8 of 12 months
Strong option
Golden Week brings Japan's biggest domestic travel surge — lively but crowded; book everything months ahead.
- ↑Golden Week (late April through early May) fills Dotonbori and Shinsaibashi with a festive energy unique to this period — Japan collectively at play, street stalls doing roaring trade, izakayas packed
- ↑Weather is warm and reliably pleasant: 25°C with moderate humidity is close to ideal for the full Osaka experience — castle grounds, Shinsekai, and long evening food crawls
| Factor | October | May |
|---|---|---|
| Weather score | 9 | 8 |
| Value score | 7 | 5 |
| Crowd score | 6 | 4 |
| Events score | 7 | 6 |
| Atmosphere | 8 | 7 |
| Avg high temp | 22°C | 25°C |
| Monthly rain | 112mm | 145mm |
| Daily sunshine | 6.3hrs | 6.8hrs |
October trade-offs
- ↓Autumn foliage is still arriving in October — the famous red maple season at nearby temples peaks in November; October visitors get good weather but not the full colour display
- ↓112mm of rainfall means occasional wet days; October weather in Osaka can still produce a rainy week, though typhoon risk drops significantly from September
- ↓International visitor numbers are climbing again after the summer lull; Dotonbori and Kuromon Market are busier than June-September
May trade-offs
- ↓Golden Week (May 3–5 peak) is Japan's busiest travel period: Osaka Castle, Dotonbori, and Universal Studios Japan operate at capacity; advance booking is non-negotiable
- ↓Hotel rates during Golden Week are at or near their annual peak — comparable to cherry blossom season; prices drop quickly after May 5
- ↓Rail travel during Golden Week is heavily booked; Shinkansen seats to/from Osaka require reservations made weeks in advance
Scores compare months within Osaka. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →