Tokyo in September
In September, Tokyo averages 27°C (81°F) during the day and 20°C (68°F) at night, with around 12 days of rain (210 mm total).
ShoulderConditions are warm and beach-friendly. Plan for unsettled weather and bring rain gear.
It's peak typhoon season in Tokyo during September. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
How September compares to the rest of the year in Tokyo
September is one of the warmest months in Tokyo (3rd of 12) and one of the wettest months (2nd of 12). Daytime temperature runs 7°C above the annual average (20°C). September runs 4°C cooler than August (31°C) and cools 5°C in October (22°C).
September sunrise & sunset in Tokyo
Times shown for Tokyo local time (Asia/Tokyo), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Tokyo — September
Golden-hour and blue-hour windows for the 15th of September, in Tokyo's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Tokyo in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Shoulder) and Tokyo's popularity.
Crowds & pricing — September in Tokyo
Tokyo is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: comfortable tourism weather peak hazard season (1 active)
Sun & mosquito risk — September in Tokyo
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Tokyo in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 10°C / 50°F | 1°C / 34°F | 52 mm | 5 | 1 |
| February | 10°C / 50°F | 2°C / 36°F | 56 mm | 6 | 1 |
| March | 14°C / 57°F | 5°C / 41°F | 118 mm | 10 | 0 |
| April | 19°C / 66°F | 10°C / 50°F | 125 mm | 10 | 0 |
| May | 23°C / 73°F | 15°C / 59°F | 138 mm | 10 | 0 |
| June | 26°C / 79°F | 18°C / 64°F | 168 mm | 12 | 0 |
| July | 30°C / 86°F | 22°C / 72°F | 154 mm | 11 | 0 |
| August | 31°C / 88°F | 24°C / 75°F | 168 mm | 9 | 0 |
| September | 27°C / 81°F | 20°C / 68°F | 210 mm | 12 | 0 |
| October | 22°C / 72°F | 14°C / 57°F | 198 mm | 11 | 0 |
| November | 17°C / 63°F | 8°C / 46°F | 93 mm | 7 | 0 |
| December | 12°C / 54°F | 3°C / 37°F | 51 mm | 5 | 0 |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Tokyo in September →
Frequently asked questions
How hot is Tokyo in September?
In September, Tokyo averages a high of 27°C (81°F) and a low of 20°C (68°F) — generally warm.
Does it rain a lot in Tokyo in September?
September can be fairly wet in Tokyo, with about 12 rainy days on average.
Is September a good time to visit Tokyo?
September is warm. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Tokyo in September?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full September packing list for Tokyo for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.