When to go · Sai
Sai, month by month
The best months for Sai: Jun, Jul, Aug, Sep. Months to avoid: Jan, Feb, Nov, Dec.
Month by month
- JanuaryAvoidListed as a month to avoid: Nov–Feb (cold, limited ferry service).2 °C (36 °F) / -5 °C (23 °F), 5 rain days36 °F (2 °C) / 23 °F (-5 °C), 5 rain daysCrowds: Low · 1 festival or holiday
- FebruaryAvoidListed as a month to avoid: Nov–Feb (cold, limited ferry service).3 °C (37 °F) / -4 °C (25 °F), 5 rain days37 °F (3 °C) / 25 °F (-4 °C), 5 rain daysCrowds: Low
- MarchGoodOutside the best window (Jun–Sep (sea‑urchin roe festival, milder weather)). Across Japan: Blossom arrives late in the month: prices jump, book early.8 °C (46 °F) / 0 °C (32 °F), 6 rain days46 °F (8 °C) / 32 °F (0 °C), 6 rain daysCrowds: High · 1 festival or holiday
- AprilMixedOutside the best window (Jun–Sep (sea‑urchin roe festival, milder weather)). Across Japan: Blossom peak early April and Golden Week at the end: the two most crowded windows of the year.14 °C (57 °F) / 5 °C (41 °F), 5 rain days57 °F (14 °C) / 41 °F (5 °C), 5 rain daysCrowds: High · 2 festivals or holidays
- MayGoodOutside the best window (Jun–Sep (sea‑urchin roe festival, milder weather)). Across Japan: After Golden Week, one of the best months: warm, green, calmer.19 °C (66 °F) / 10 °C (50 °F), 5 rain days66 °F (19 °C) / 50 °F (10 °C), 5 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).23 °C (73 °F) / 14 °C (57 °F), 4 rain days73 °F (23 °C) / 57 °F (14 °C), 4 rain daysCrowds: Low
- JulyGreatInside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).26 °C (79 °F) / 17 °C (63 °F), 4 rain days79 °F (26 °C) / 63 °F (17 °C), 4 rain daysCrowds: Medium
- AugustGreatInside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).26 °C (79 °F) / 17 °C (63 °F), 5 rain days79 °F (26 °C) / 63 °F (17 °C), 5 rain daysCrowds: High · 1 festival or holiday
- SeptemberGreatInside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).22 °C (72 °F) / 13 °C (55 °F), 5 rain days72 °F (22 °C) / 55 °F (13 °C), 5 rain daysCrowds: Medium
- OctoberGoodOutside the best window (Jun–Sep (sea‑urchin roe festival, milder weather)). Across Japan: Clear, mild and dry: the best all-round month.16 °C (61 °F) / 8 °C (46 °F), 6 rain days61 °F (16 °C) / 46 °F (8 °C), 6 rain daysCrowds: Medium
- NovemberAvoidListed as a month to avoid: Nov–Feb (cold, limited ferry service).10 °C (50 °F) / 2 °C (36 °F), 7 rain days50 °F (10 °C) / 36 °F (2 °C), 7 rain daysCrowds: High
- DecemberAvoidListed as a month to avoid: Nov–Feb (cold, limited ferry service).4 °C (39 °F) / -2 °C (28 °F), 6 rain days39 °F (4 °C) / 28 °F (-2 °C), 6 rain daysCrowds: Medium · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Sai, side by side.
Verdict
Jun: Great
Jul: Great
Daytime high
Jun: 23 °C (73 °F)73 °F (23 °C)
Jul: 26 °C (79 °F)79 °F (26 °C)
Night low
Jun: 14 °C (57 °F)57 °F (14 °C)
Jul: 17 °C (63 °F)63 °F (17 °C)
Rain days
Jun: 4
Jul: 4
Crowds
Jun: Low
Jul: Medium
Prices
Jun: Medium
Jul: Medium
Festivals listed
Jun: 0
Jul: 0
June: Inside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).
July: Inside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).
Sai: figures are long-term averages from this guide, not a forecast.