Koyasan Weather in April

April in Koyasan averages 19°C (66°F) during the day and 8°C (46°F) at night. Quite a bit of rainfall is typical this month, with around 151 mm (5.9 in) on average. An umbrella is a good idea.

Rainfall in Koyasan in April

You can expect rain on around 16 days based on historical patterns, with 151 mm (5.9 in) average for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Koyasan in April

April in Koyasan sees highs of 19°C (66°F) and lows of 8°C (46°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Koyasan in April

The month experiences a moderate amount of sunlight, with 180 hours of sunshine. This provides a nice balance between sunshine and clouds.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May typically offers the best weather for Koyasan.

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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 Koyasan's climate page.

Koyasan Temperature in April

Min Temperature 8°C (46°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 55%  

Precipitation 151 mm (5.9 in)  

Rainy days 16 days  

Humidity 65% *  

Sunshine 180 hours *  

Percentage Sunshine *  

* Data from: Wakayama, Japan (37 KM, 23 Miles).

What to Wear in Koyasan in April

Comfortable temperatures call for an easy wardrobe in April. 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. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Koyasan in April

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

Swimming

6/10

Camping

3/10

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 Koyasan's climate page.

More climate data for Koyasan

Temperature Rainfall Sunshine Humidity

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