Kumamoto weather in March
Japan

March in Kumamoto: cool, rainy, with muggy air — a great time to visit.
#5 of 12 months in Kumamoto · #829 of 1383 destinations to visit in March · comfort 72/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Kumamoto in March
No notes yet. Open Kumamoto on the map to add the first one.
Kumamoto climate normals — March
| Daytime high | 16°C / 60°F | 🙂 cool |
|---|---|---|
| Nighttime low | 8°C / 47°F | |
| Sea temperature | 13°C / 55°F | 🥶 cold sea |
| Rainfall | 142 mm / 5.6 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 7°C / 45°F | |
| Sunshine | 7.7 h/day | |
| Daylight | 12 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 58 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Kumamoto in March
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsCastle cherry blossom, Spring break (haruyasumi) in Japan(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Kumamoto's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherKumamoto's best weather comes in April, October and November — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Kumamoto in March
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Mount Aso crater alerts
1 Jan – 31 DecVolcanic activityClosuresNakadake is the day trip everyone books and the one that gets cancelled: the crater rim closes without notice on gas readings or a raised alert, and has been shut for long stretches. Check before you drive out. Source ↗
- Nature
Castle cherry blossom
25 Mar – 10 Apr · usuallyCrowdedThe castle grounds are the city's hanami spot and the reconstruction scaffolding does not put anyone off. Kyushu goes early, so this is usually done before the Tokyo reports start. Source ↗
Nearby, and something's on
Within 300 km of Kumamoto — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Kumamoto?
Kumamoto in March — FAQ
- Is March a good time to visit Kumamoto?
- March in Kumamoto: cool, rainy, with muggy air — a great time to visit. It ranks #5 of 12 months for Kumamoto on SeasonMap's comfort score (72/100).
- What is the weather like in Kumamoto in March?
- In March, Kumamoto averages a daily high of 15.8°C and a low of 8.1°C, with about 142.4 mm of rain over roughly 13.2 rainy days.
- What is the air quality in Kumamoto in March?
- Kumamoto has a mean US Air Quality Index of about 58 in March.
Other months in Kumamoto
Compare Kumamoto in March
Warmer or cooler than Kumamoto in March
Similar destinations in East Asia — March
Within 300 km: Fukuoka's Cherry blossom around 18 Mar – 5 Apr, and Kagoshima's Cherry blossom around 20 Mar – 5 Apr.