Kōyasan
October
Weather in Kōyasan for October 2025
Your guide to Kōyasan weather in October - trends and predictions
In general, the average temperature in Kōyasan at the beginning of October is 24.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 19.7 °C by the end of October.
Kōyasan in October brings notable rainfall, with an average of 19 rainy days and a total precipitation of 230.4 mm.
Is October a good time to visit Kōyasan? check out the best time to travel to Kōyasan page.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
12
Dry days
19
Rainy days
0
Snow days
23°/14°
Temperatures
10 km/h
Avg max wind
83 %
Avg humidity
Kōyasan Weather October
Move between months or click on a day
Temperatures trend during October in Kōyasan
See the weather trend as well as the moving average line
October weather in Kōyasan day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Oct. |  Sunny | 26° /17° | 0 mm | 7 | |
| 2 Oct. |  Overcast | 27° /17° | 0.4 mm | 6 | |
| 3 Oct. |  Moderate or heavy rain shower | 22° /18° | 24.5 mm | 5 | |
| 4 Oct. | Moderate or heavy rain shower | 21° /17° | 45.8 mm | 5 | |
| 5 Oct. |  Patchy rain possible | 24° /16° | 0.4 mm | 5 | |
| 6 Oct. | Patchy rain possible | 26° /17° | 0.5 mm | 6 | |
| 7 Oct. | Moderate or heavy rain shower | 27° /18° | 13.8 mm | 6 | |
| 8 Oct. | Moderate or heavy rain shower | 21° /15° | 16.8 mm | 5 | |
| 9 Oct. | Patchy rain possible | 22° /14° | 12.8 mm | 5 | |
| 10 Oct. | Overcast | 22° /13° | 0 mm | 5 | |
| 11 Oct. |  Partly cloudy | 21° /13° | 0 mm | 6 | |
| 12 Oct. | Sunny | 22° /12° | 0 mm | 6 | |
| 13 Oct. |  Cloudy | 23° /13° | 0 mm | 5 | |
| 14 Oct. | Cloudy | 25° /12° | 0 mm | 6 | |
| 15 Oct. | Patchy rain possible | 25° /15° | 0.3 mm | 6 | |
| 16 Oct. |  Heavy rain at times | 24° /17° | 2.4 mm | 5 | |
| 17 Oct. | Overcast | 25° /17° | 0 mm | 6 | |
| 18 Oct. | Moderate or heavy rain shower | 24° /18° | 10.6 mm | 5 | |
| 19 Oct. | Moderate or heavy rain shower | 25° /15° | 23.3 mm | 6 | |
| 20 Oct. | Overcast | 18° /12° | 0.1 mm | 4 | |
| 21 Oct. | Overcast | 22° /11° | 0 mm | 5 | |
| 22 Oct. | Patchy rain possible | 23° /12° | 0.1 mm | 5 | |
| 23 Oct. | Moderate or heavy rain shower | 26° /18° | 19.7 mm | 6 | |
| 24 Oct. | Patchy rain possible | 21° /14° | 2.2 mm | 5 | |
| 25 Oct. | Overcast | 21° /14° | 3.8 mm | 5 | |
| 26 Oct. | Patchy rain possible | 23° /15° | 0.5 mm | 5 | |
| 27 Oct. | Patchy rain possible | 23° /13° | 0.2 mm | 5 | |
| 28 Oct. | Moderate rain at times | 18° /14° | 26.6 mm | 4 | |
| 29 Oct. | Moderate or heavy rain shower | 16° /13° | 21.8 mm | 4 | |
| 30 Oct. | Patchy rain possible | 17° /9° | 3.9 mm | 4 | |
| 31 Oct. | Overcast | 20° /8° | 0 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Kōyasan in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Kōyasan forecast closer to your planned date for the most up-to-date weather information.
Change Month
Kōyasan in October - FAQ
What are the expected maximum and minimum temperatures in Kōyasan during October?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Kōyasan during October?
Significant rainfall exceeding 230.4 mm is expected in Kōyasan during October, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Kōyasan during October?
The average wind speed in Kōyasan during October is 10 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Kōyasan in October?
As you prepare for your trip to Kōyasan in October, 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 October, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
October rainfall patterns in Kōyasan
Explore the daily rainfall trends and prepare for Kōyasans October weather 💧
UV exposure in Kōyasan during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
Quick links
More Kōyasan weather pages
You are here
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.
Found a mistake?
We appreciate your attention to details. Tell us here.