Nagasaki weather in March
Temperature, sea and sunshine in March: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in March
Fair
Best time to visit: April – May, September – November
What is the weather like in Nagasaki in March?
In March, Nagasaki is cool: daytime highs average 14 °C, and nights cool down to about 9 °C. The sea averages 16.0 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 145 mm in total. All in all, March is a so-so month for a holiday in Nagasaki.
March compared
How the weather changes from February to April. Tap a month to open it.
| FebruaryFeb | MarchMar | AprilApr | |
|---|---|---|---|
| Score | 35 | 50 | 71 |
| Day | 11° | 14° | 18° |
| Night | 7° | 9° | 13° |
| Sea | 16° | 16° | 17° |
| Sun | 4 h | 5 h | 6 h |
| Rain days | 11 | 12 | 11 |
More details for March
- Daylight
- 11 h 55 min06:32 – 18:28
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 24 km/haverage daily peakAll months
- Cloud cover
- 62 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+9Asia/Tokyo
How the score comes together
- Temperatureweight 50 %58 %
- Sunshineweight 20 %35 %
- Few rainy daysweight 30 %46 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in March
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Nagasaki in March: quick answers
Is Nagasaki hot in March?
No. In March, Nagasaki is cool: daytime highs average 14 °C and nights drop to about 9 °C.
Can you swim in Nagasaki in March?
Only if you don't mind cold water: in March the sea averages just 16.0 °C. Comfortable swimming is possible from June to November.
Does it rain much in Nagasaki in March?
Rain is frequent, with about 12 rainy days and 145 mm in total.
Nagasaki month by month
The whole year in NagasakiAll destinations: JapanWhere to go in MarchSea temperature in March
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences