Weather in Kōyasan for April 2027
In general, the average temperature in Kōyasan at the beginning of April is 15 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 18.7 °C by the end of April.
Kōyasan in April brings notable rainfall, with an average of 18 rainy days and a total precipitation of 149.7 mm.
Is April a good time to visit Kōyasan? check out the best time to travel to Kōyasan page.
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Kōyasan Weather April
Temperatures trend during April in Kōyasan
April weather in Kōyasan day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Apr. |  Overcast | 12° /5° | 2.6 mm | 2 | |
| 2 Apr. |  Moderate or heavy rain shower | 14° /4° | 5 mm | 4 | |
| 3 Apr. | Moderate rain at times | 15° /4° | 0.6 mm | 5 | |
| 4 Apr. |  Patchy rain possible | 14° /5° | 4.2 mm | 3 | |
| 5 Apr. | Overcast | 17° /5° | 0.3 mm | 5 | |
| 6 Apr. | Moderate or heavy rain shower | 19° /8° | 5.9 mm | 6 | |
| 7 Apr. |  Sunny | 14° /3° | 6.1 mm | 5 | |
| 8 Apr. | Patchy rain possible | 17° /2° | 0.1 mm | 6 | |
| 9 Apr. | Overcast | 17° /4° | 1.7 mm | 5 | |
| 10 Apr. | Patchy rain possible | 20° /9° | 25.4 mm | 4 | |
| 11 Apr. | Moderate or heavy rain shower | 18° /8° | 3.9 mm | 6 | |
| 12 Apr. |  Partly cloudy | 19° /6° | 0 mm | 6 | |
| 13 Apr. | Moderate or heavy rain shower | 19° /8° | 12.8 mm | 6 | |
| 14 Apr. | Moderate or heavy rain shower | 20° /6° | 2.5 mm | 6 | |
| 15 Apr. | Moderate or heavy rain shower | 15° /8° | 9.7 mm | 3 | |
| 16 Apr. | Sunny | 17° /4° | 0.2 mm | 7 | |
| 17 Apr. | Sunny | 21° /7° | 0 mm | 7 | |
| 18 Apr. |  Heavy rain at times | 22° /10° | 0.6 mm | 7 | |
| 19 Apr. | Overcast | 24° /10° | 0.2 mm | 7 | |
| 20 Apr. | Overcast | 22° /12° | 0.1 mm | 6 | |
| 21 Apr. | Sunny | 20° /8° | 2.9 mm | 7 | |
| 22 Apr. | Overcast | 22° /7° | 3.5 mm | 7 | |
| 23 Apr. | Moderate or heavy rain shower | 17° /12° | 28.9 mm | 3 | |
| 24 Apr. |  Cloudy | 19° /10° | 0.5 mm | 5 | |
| 25 Apr. | Cloudy | 17° /8° | 0.9 mm | 4 | |
| 26 Apr. | Sunny | 20° /6° | 6.2 mm | 7 | |
| 27 Apr. | Overcast | 20° /9° | 8.6 mm | 5 | |
| 28 Apr. | Moderate or heavy rain shower | 20° /9° | 6.8 mm | 7 | |
| 29 Apr. | Patchy rain possible | 17° /7° | 0.2 mm | 5 | |
| 30 Apr. | Sunny | 18° /6° | 9.4 mm | 4 | |
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Kōyasan weather in April vs March vs May
| March | April | May | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 13°/2° | 18°/7° | 21°/11° |
| Rainfall | 98 mm | 150 mm | 227 mm |
| Snowfall | 3 cm | 0 cm | 0 cm |
| Wind | 15.1 km/h | 13.6 km/h | 12.2 km/h |
| Humidity | 69% | 70% | 77% |
| Rainy days | 15 days | 18 days | 23 days |
| Snow days | 5 days | 0 days | 0 days |
| Dry days | 11 days | 12 days | 8 days |
Planning a trip to Kōyasan? Discover the best time to visit
Kōyasan in April - FAQ
What are the expected maximum and minimum temperatures in Kōyasan during April?
How much rainfall should be expected in Kōyasan during April?
What are the typical wind conditions in Kōyasan during April?
April rainfall patterns in Kōyasan
UV exposure in Kōyasan during April
What to pack to Kōyasan in April?
Cold & raw · highs around 18 °C, frequent showers
As you prepare for your trip to Kōyasan in April, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Kōyasan, during April, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
👟 Footwear
🎒 Accessories
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Where is Kōyasan?Get accurate weather forecasts for Kōyasan, located at latitude 34.217 and longitude 135.583. Stay updated with localized weather information tailored for Kōyasan.