Nagasaki Weather in May

Thinking of visiting Nagasaki in May? Expect pleasant temperatures reaching 22°C (72°F) during the day, dropping to 17°C (63°F) at night. Heavy showers are common during the rainy season.

Rainfall in Nagasaki in May

As part of the rainy season, Nagasaki sees around 16 days of rain in May, with an average of 191 mm (7.5 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.

Temperature in Nagasaki in May

Daytime temperatures in Nagasaki reach 22°C (72°F) in May, dropping to 17°C (63°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 17°C (63°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Nagasaki in May

There are approximately 190 hours of sunshine this month, despite being the rainy season. Rain often arrives in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, it could still be a nice time to visit.

Wind Speed in Nagasaki in May

Wind speeds average 2 m/s (4 knots) during May. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.

Average water temperature in May

At 19°C (66°F), the water is getting there, comfortable enough for most swimmers, though those used to warmer seas may still find it a touch cool.

If your ideal day consists of dry skies and pleasant temperatures, October typically offers the best circumstances for Nagasaki.