When to go · Unzen
Unzen, month by month
The best months for Unzen: Mar, Apr, May, Oct, Nov. Months to avoid: Jan, Feb, Jul, Aug.
Month by month
- JanuaryAvoidListed as a month to avoid: Jul–Aug (hot and humid), Jan–Feb (cold, some trails closed).10 °C (50 °F) / 2 °C (36 °F), 8 rain days50 °F (10 °C) / 36 °F (2 °C), 8 rain daysCrowds: Low · 1 festival or holiday
- FebruaryAvoidListed as a month to avoid: Jul–Aug (hot and humid), Jan–Feb (cold, some trails closed).11 °C (52 °F) / 3 °C (37 °F), 9 rain days52 °F (11 °C) / 37 °F (3 °C), 9 rain daysCrowds: Low
- MarchGreatInside Unzen's best window: Mar–May, Oct–Nov.14 °C (57 °F) / 5 °C (41 °F), 11 rain days57 °F (14 °C) / 41 °F (5 °C), 11 rain daysCrowds: High · 1 festival or holiday
- AprilGreatInside Unzen's best window: Mar–May, Oct–Nov.19 °C (66 °F) / 10 °C (50 °F), 10 rain days66 °F (19 °C) / 50 °F (10 °C), 10 rain daysCrowds: High · 2 festivals or holidays
- MayGreatInside Unzen's best window: Mar–May, Oct–Nov.23 °C (73 °F) / 14 °C (57 °F), 11 rain days73 °F (23 °C) / 57 °F (14 °C), 11 rain daysCrowds: Medium · 1 festival or holiday
- JuneMixedOutside the best window (Mar–May, Oct–Nov). Across Japan: Rainy season in Honshū: grey, humid, fewer tourists; Hokkaidō is at its best.26 °C (79 °F) / 18 °C (64 °F), 14 rain days79 °F (26 °C) / 64 °F (18 °C), 14 rain daysCrowds: Low
- JulyAvoidListed as a month to avoid: Jul–Aug (hot and humid), Jan–Feb (cold, some trails closed).30 °C (86 °F) / 22 °C (72 °F), 12 rain days86 °F (30 °C) / 72 °F (22 °C), 12 rain daysCrowds: Medium
- AugustAvoidListed as a month to avoid: Jul–Aug (hot and humid), Jan–Feb (cold, some trails closed).31 °C (88 °F) / 23 °C (73 °F), 11 rain days88 °F (31 °C) / 73 °F (23 °C), 11 rain daysCrowds: High · 1 festival or holiday
- SeptemberMixedOutside the best window (Mar–May, Oct–Nov). Across Japan: Still hot; typhoon peak can cancel flights and ferries for a day or two.28 °C (82 °F) / 20 °C (68 °F), 12 rain days82 °F (28 °C) / 68 °F (20 °C), 12 rain daysCrowds: Medium
- OctoberGreatInside Unzen's best window: Mar–May, Oct–Nov.23 °C (73 °F) / 14 °C (57 °F), 9 rain days73 °F (23 °C) / 57 °F (14 °C), 9 rain daysCrowds: Medium
- NovemberGreatInside Unzen's best window: Mar–May, Oct–Nov.18 °C (64 °F) / 9 °C (48 °F), 8 rain days64 °F (18 °C) / 48 °F (9 °C), 8 rain daysCrowds: High
- DecemberGoodOutside the best window (Mar–May, Oct–Nov). Across Japan: Cold and clear until the New Year shutdown from 29 Dec.13 °C (55 °F) / 4 °C (39 °F), 7 rain days55 °F (13 °C) / 39 °F (4 °C), 7 rain daysCrowds: Medium · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Unzen, side by side.
Verdict
Mar: Great
Apr: Great
Daytime high
Mar: 14 °C (57 °F)57 °F (14 °C)
Apr: 19 °C (66 °F)66 °F (19 °C)
Night low
Mar: 5 °C (41 °F)41 °F (5 °C)
Apr: 10 °C (50 °F)50 °F (10 °C)
Rain days
Mar: 11
Apr: 10 (better)
Crowds
Mar: High
Apr: High
Prices
Mar: High
Apr: High
Festivals listed
Mar: 1
Apr: 2
March: Inside Unzen's best window: Mar–May, Oct–Nov.
April: Inside Unzen's best window: Mar–May, Oct–Nov.
Unzen: figures are long-term averages from this guide, not a forecast.