Isahaya Weather in April

With daytime temperatures of 19°C (66°F) and nighttime lows of 13°C (55°F), April in Isahaya brings pleasant temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 170 mm (6.7 in) falls on average.

Rainfall in Isahaya in April

Analyzing past climate data, one can expect approximately 16 days of rain, averaging 170 mm (6.7 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Isahaya in April

Daytime temperatures in Isahaya reach 19°C (66°F) in April, dropping to 13°C (55°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 13°C (55°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Isahaya in April

The month brings about 180 hours of sunlight, offering a comfortable mix of sun and overcast.

Wind Speed in Isahaya in April

Average wind conditions reach 2 m/s (4 knots) in April. 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 April

With water at 17°C (63°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

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

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• January
• February
• March
• April

• May
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• September
• October
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• December

For a detailed overview over the year and the best time to visit Japan, check out our Isahaya's climate page.

Isahaya Temperature in April

Min Temperature 13°C (55°F)  

Max Temperature 19°C (66°F)  

Water Temperature 17°C (63°F) *  

Chance of Rain 55%  

Precipitation 170 mm (6.7 in)  

Rainy days 16 days  

Humidity 67% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 180 hours *  

Percentage Sunshine 42% *  

* Data from: Nagasaki, Japan (23 KM, 14 Miles).

What to Wear in Isahaya in April

For Isahaya in April, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. Expect water temperatures of around 17°C (63°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Isahaya in April

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Camping

6/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Japan, check out our Isahaya's climate page.

More climate data for Isahaya

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Isahaya climate overview or explore weather in Japan.