When to go · Sai
Sai in April
Mixed month. Outside 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.
Key facts
- Verdict
- Mixed
- Temperature
- 14°C (57°F)57°F (14°C) / 5°C (41°F)41°F (5°C)
- average high / low
- Rain days
- 5
- Crowds
- High
- Japan overall
- Prices
- High
- Japan overall
Verdict
Outside 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.
Is another month better than April?
April is rated mixed. These months rate higher:
- JuneGreatInside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).
- JulyGreatInside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).
- AugustGreatInside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).
- SeptemberGreatInside Sai's best window: Jun–Sep (sea‑urchin roe festival, milder weather).
Weather in April
- SaiHighs around 14 °C (57 °F), lows around 5 °C (41 °F), rain on about 5 daysHighs around 57 °F (14 °C), lows around 41 °F (5 °C), rain on about 5 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Cherry blossom season big impact
Late Mar – mid Apr (moves north through May) · Japan
Kyoto and Tokyo hotels at peak prices; parks crowded from dawn; book months ahead.
Golden Week big impact
29 Apr – 5 May · Japan
The biggest domestic travel week: Shinkansen reserved cars and hotels sell out; prices up.
Crowds and prices
- Crowds · Japan overall
- High
- Prices · Japan overall
- High
Japan overall: Blossom peak early April and Golden Week at the end: the two most crowded windows of the year.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Sai, side by side.
Verdict
Apr: Mixed
Jun: Great (better)
Daytime high
Apr: 14 °C (57 °F)57 °F (14 °C)
Jun: 23 °C (73 °F)73 °F (23 °C)
Night low
Apr: 5 °C (41 °F)41 °F (5 °C)
Jun: 14 °C (57 °F)57 °F (14 °C)
Rain days
Apr: 5
Jun: 4 (better)
Crowds
Apr: High
Jun: Low
Prices
Apr: High
Jun: Medium
Festivals listed
Apr: 2
Jun: 0
April: Outside 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.
June: 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.
What to pack
- A warm coat, hat and gloves for mornings and evenings