The direct answer: late March–April and late October–November have the best weather and scenery (cherry blossoms and autumn leaves), but also the highest prices and the biggest crowds — book 4–6 months ahead. If you'd rather save money and skip the crowds, February and June are the two most underrated months to go.
Month by Month
Weather, events, and crowd levels for every month of the year.
Month
Weather
Key Events
Crowds
Note
January
Cold, dry, clear skies
New Year (Jan 1–3 — many shops close)
Low
Great value after Jan 4. Hokkaido snow festivals begin.
February
Coldest month, occasional snow in Tokyo
Sapporo Snow Festival
Low
Cheapest month for flights and hotels overall.
March
Warming up, still cool
Cherry blossoms begin in the south (mid-late March)
Rising fast
Book hotels 4+ months ahead if chasing sakura.
April
Mild, occasional rain
Peak cherry blossoms (early April, Tokyo/Kyoto)
Very high
The single most popular — and expensive — month to visit.
May
Warm, pleasant
Golden Week (Apr 29–May 5 — domestic travel surge)
High during Golden Week, moderate after
Avoid Golden Week dates specifically; the rest of May is excellent.
June
Rainy season (tsuyu)
Hydrangeas bloom
Low
Underrated for budget travel if you don't mind an umbrella.
July
Hot, humid, rain clears mid-month
Gion Matsuri (Kyoto), fireworks festivals
Moderate
Late July rewards you with festivals once the rain stops.
August
Hottest month, 30°C+
Obon holiday (mid-Aug — domestic travel peak)
Very high mid-month
Hot and crowded — avoid Aug 13–16 if possible.
September
Still hot, typhoon risk
Typhoon season (peak risk)
Low
Cheap, but check storm forecasts before booking non-refundable trains.
October
Cooling down, comfortable
Autumn foliage starts in Hokkaido/Tohoku
Moderate
One of the best all-around months — good weather, fewer crowds than November.
November
Cool, dry, clear
Peak autumn leaves (Kyoto, mid-late Nov)
Very high
Rivals April for beauty and for how far ahead you need to book.
December
Cold, dry
Winter illuminations, New Year prep
Low (except Dec 28–31)
Christmas illuminations without the crowds of spring or autumn.
Pick a Month by What You Actually Want
Cherry blossoms
Late March – early April
Autumn leaves
Mid-to-late November
The cheapest trip
February or June
Fewest crowds
January or June
Festivals and fireworks
Late July – August
Snow and skiing (Hokkaido)
January – February
Found your month?
Lock in an eSIM, book experiences, and find a place to stay before prices move.