Hakone weather by month
2006-2025, 20 years of records · Not a forecast
Hakone is a mountain hot-spring area where the weather changes quickly and rain is plentiful, especially in the rainy season and September. Winter air is clear and gives the sharpest views of Mt. Fuji, while humid summers hide it almost entirely. Fuji is best seen early in the morning. The Owakudani ropeway can stop depending on volcanic gas levels or weather, so check operating notices before you go. It works as a day trip from Tokyo, but a night in an onsen inn is what makes it Hakone.
Weighing daytime warmth against rain days, May and October came out as the easiest months. January was the quiet stretch with 5 rain days, against 12 in June, July and September.
Each month in a line
| January | chilly | 11° / 4° |
|---|---|---|
| February | crisp and chilly, occasional rain | 11° / 4° |
| March | chilly | 15° / 7° |
| April | cool and fresh, frequent rain | 19° / 11° |
| MayGood | warm, frequent rain | 23° / 16° |
| June | comfortably warm | 25° / 19° |
| July | hot | 29° / 23° |
| August | properly hot, occasional rain | 31° / 25° |
| September | hot, frequent rain | 27° / 21° |
| OctoberGood | warm | 22° / 17° |
| November | cool and fresh | 17° / 12° |
| December | chilly | 13° / 7° |
The 12 months in numbers
Seasons differ a lot. Highs climbed from 11°C in January to 31°C in August.
| Month | High | Low | Rain days | Rainfall | Humidity | Clear days |
|---|---|---|---|---|---|---|
| January | 11° | 4° | 5 days | 62mm | 66% | 14 days |
| February | 11° | 4° | 7 days | 89mm | 69% | 9 days |
| March | 15° | 7° | 11 days | 178mm | 71% | 7 days |
| April | 19° | 11° | 11 days | 183mm | 74% | 5 days |
| May | 23° | 16° | 10 days | 190mm | 76% | 3 days |
| June | 25° | 19° | 12 days | 260mm | 82% | 1 day |
| July | 29° | 23° | 12 days | 231mm | 83% | 2 days |
| August | 31° | 25° | 8 days | 199mm | 82% | 2 days |
| September | 27° | 21° | 12 days | 264mm | 82% | 2 days |
| October | 22° | 17° | 11 days | 224mm | 80% | 4 days |
| November | 17° | 12° | 8 days | 103mm | 77% | 8 days |
| December | 13° | 7° | 7 days | 81mm | 71% | 13 days |
Enter your dates to see how that stretch went in each of the past 20 years.
Common questions
When is the best time to visit Hakone?
Weighing daytime warmth against rain days, May and October came out as the easiest months. January was the quiet stretch with 5 rain days, against 12 in June, July and September.
Which month is driest in Hakone?
January. Over 2006-2025 it averaged 5 rain days and 62 mm of rain.
Which month is warmest in Hakone?
August, with highs averaging 31°C and lows 25°C. Seasons differ a lot. Highs climbed from 11°C in January to 31°C in August.