Japan is a long, narrow country.
Before anything else, one thing is essential to understand: Japan stretches from subarctic Hokkaido in the north to subtropical Okinawa in the south. The climate varies dramatically by region. What is comfortable in Kyoto in August can be unbearable; what feels cold in Tokyo in January is mild compared to Hokkaido's deep snow.
The table below summarises typical temperatures, weather conditions, and humidity across Japan's main regions by season — to help you plan more precisely.
| Region | 🌸 Spring (Mar–May) | ☀️ Summer (Jun–Aug) | 🍂 Autumn (Sep–Nov) | ❄️ Winter (Dec–Feb) |
|---|---|---|---|---|
| Hokkaido | 8–15°C Cool, clear Low humidity |
17–25°C Mild & sunny Low humidity ✦ |
5–15°C Crisp, colourful Low humidity |
−10–0°C Heavy snow Dry |
| Tohoku | 8–18°C Mild, some rain Medium humidity |
22–30°C Warm, festivals Medium humidity |
10–20°C Clear, foliage Low humidity ✦ |
−5–5°C Heavy snow Dry |
| Tokyo | 12–20°C Mild, blossoms Medium humidity ✦ |
28–35°C Hot, humid Very high humidity ✗ |
15–25°C Clear, pleasant Low humidity ✦ |
2–10°C Dry, clear Low humidity |
| Hokuriku (Kanazawa) | 10–18°C Mild, some rain Medium humidity |
25–32°C Warm, humid High humidity |
12–22°C Clear, beautiful Low humidity |
1–8°C Heavy snow & rain High humidity |
| Kyoto / Osaka | 12–22°C Mild, blossoms Medium humidity ✦ |
30–38°C Very hot, humid Very high humidity ✗ |
15–25°C Clear, foliage Low humidity ✦ |
3–10°C Cool, occasional snow Low humidity |
| Kyushu (Fukuoka) | 13–22°C Mild, early blossoms Medium humidity ✦ |
28–35°C Hot, rainy season Very high humidity ✗ |
15–24°C Pleasant, clear Low humidity |
5–12°C Mild, some rain Medium humidity |
| Okinawa | 20–26°C Warm, some rain Medium humidity |
29–33°C Hot, typhoon risk High humidity |
23–29°C Warm, clearer Medium humidity ✦ |
15–20°C Mild, dry Low humidity ✦ |
✦ = Recommended season for that region · ✗ = Generally uncomfortable due to heat/humidity
Local tip: Kyoto and Osaka in July and August are genuinely uncomfortable — temperatures regularly exceed 35°C with very high humidity. If you're visiting the Kansai region, spring or autumn are far more enjoyable. Many Japanese people avoid travelling to Kyoto in August for this reason.
Crowds — Japan's national holidays to know.
Climate is only one factor. Crowds matter just as much — especially in Japan, where national holidays create periods of intense domestic travel. During these times, popular tourist spots, transport, and accommodation can become extremely busy and expensive.
Here are Japan's main national holidays and holiday periods that affect travel significantly.
| Period | Dates | What it is | Impact on travel |
|---|---|---|---|
| New Year (Oshogatsu) | Dec 28 – Jan 4 | Japan's most important holiday. Families gather, shrines are packed for hatsumode (first shrine visit). | Very high domestic travel. Trains and flights fully booked. Many restaurants and shops closed Jan 1–3. |
| Coming of Age Day | 2nd Mon of January | National holiday for those turning 20. Ceremonies held nationwide. | Minor impact on travel. |
| Spring Equinox | Around Mar 20–21 | National holiday. Often coincides with cherry blossom season. | Moderate increase in day-trippers to parks and gardens. |
| Golden Week | Apr 29 – May 5 | Japan's busiest holiday period. Multiple national holidays in a row: Showa Day, Constitution Day, Greenery Day, Children's Day. | Extremely busy nationwide. Highest prices of the year. Avoid popular tourist spots unless you plan far ahead. |
| Marine Day | 3rd Mon of July | National holiday celebrating the ocean. | Beaches get crowded, especially in Shonan (near Tokyo) and Okinawa. |
| Mountain Day | August 11 | National holiday appreciating mountains. | Popular hiking spots like Mt Fuji and the Japan Alps get busier. |
| Obon | Around Aug 13–16 | Buddhist holiday when families return to hometowns to honour ancestors. Not an official public holiday but treated as one by most companies. | Very high travel. Trains, highways, and flights extremely busy. Rural areas and hometowns crowded; some tourist areas emptier than usual. |
| Respect for the Aged Day | 3rd Mon of September | National holiday honouring elderly citizens. | Minor impact on travel. |
| Autumn Equinox | Around Sep 22–23 | National holiday. Often a long weekend. | Moderate increase in domestic travel, especially to scenic spots. |
| Silver Week | Mid-September (some years) | When Respect for the Aged Day and Autumn Equinox fall in the same week, a five-day holiday can form. Does not happen every year. | When it occurs: similar impact to Golden Week. Worth checking in advance. |
| Sports Day | 2nd Mon of October | National holiday promoting sport and healthy living. | Minor impact. Outdoor spots slightly busier. |
| Culture Day | November 3 | National holiday celebrating Japanese culture and arts. Museum entry is often free. | Good day to visit museums. Kyoto and Nara in early November are beautiful — but already busy for autumn foliage. |
| Labour Thanksgiving Day | November 23 | National holiday. Equivalent to Labour Day. | Minor impact. Sometimes creates a long weekend in late November. |
| Year-End (Nenmatsu) | Dec 25 – Jan 3 | Not an official holiday period, but most Japanese companies close between Dec 28 and Jan 4. The country essentially shuts down. | High domestic travel Dec 28–30 and Jan 2–4. Many local restaurants and shops closed. Major temples and shrines extremely crowded on Jan 1. |
Local tip: The two periods to most avoid if you dislike crowds are Golden Week (late April to early May) and Obon (mid-August). Transport prices spike and popular spots become genuinely overwhelming. If your dates overlap with these periods, focus on rural areas and lesser-known destinations instead — they're often quieter during domestic holiday seasons.
My honest conclusion.
Of course, the best time to visit Japan ultimately depends on your purpose — what you want to see, where you want to go, and what kind of experience you're looking for. The information above is here to help you make a more informed decision and have a more comfortable trip.
I'll continue sharing honest, first-hand insights like this. If there's a topic you'd like me to cover, send me an email — I'd love to hear from you.
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