Isahaya Weather in May
During May, Isahaya experiences high daytime temperatures of 23°C (73°F) and cooler nights around 17°C (63°F). May sits within the rainy season, so expect regular and often heavy rainfall.
Rainfall in Isahaya in May
As part of the rainy season, Isahaya sees around 16 days of rain in May, with an average of 186 mm (7.3 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.
Temperature in Isahaya in May
In May, Isahaya sees high temperatures, with highs of 23°C (73°F). Nights drop to around 17°C (63°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 17°C (63°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Isahaya in May
Expect a lot of sunshine this month, with about 190 hours of sun. Showers typically arrive in the late afternoon or evening, keeping mornings and early afternoons sunny. Even during the wet season, there's plenty of sunshine for sightseeing.
Wind Speed in Isahaya in May
Average wind conditions reach 2 m/s (4 knots) in May. This creates comfortable weather with light winds that gently move vegetation. Keep in mind this is an average. Daily conditions range from near-calm to more noticeable wind.
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.Should you favor a climate that's both dry and comfortably warm, October typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Isahaya's climate page.
Isahaya Temperature in May
Min Temperature
17°C (63°F)
Max Temperature
23°C (73°F)
Water Temperature
19°C (66°F) *
Chance of Rain
53%
Precipitation
186 mm (7.3 in)
Rainy days
16 days
Humidity
72% *
Windspeed
2 m/s (4 knots) *
Sunshine
190 hours *
Percentage Sunshine
43% *
Best Places in Japan in May
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in May →
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unpleasant
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What to Wear in Isahaya in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. It's going to pour! Pack a good poncho and prepare for very wet conditions. Expect water temperatures of around 19°C (66°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Isahaya in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Isahaya's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Isahaya climate overview or explore weather in Japan.
