Yokohama Weather in September
Japan · September climate averages and travel tips
Yokohama in September sees daytime temperatures around 27°C (81°F), dropping to about 20°C (67°F) at night. September is autumn (fall) in Japan. The month is wet, with about 218 mm (8.6 in) of rain spread over 15 days, making it the wettest month of the year. Humidity averages 84%, so it feels sticky and hotter than the thermometer suggests. You get roughly 12.2 hours of daylight and frequently cloudy skies.
Is September a good time to visit Yokohama?
September is not the best time to visit Yokohama (4/10) mainly because of the rain. The weather is much better in November.
Visiting Yokohama in September
September weather
Yokohama is still warm in September, but it's less intense than August. Expect sticky air, cloudy skies and frequent rain. Showers can interrupt a day out, and typhoons may bring rough weather, so keep plans flexible.
You can still stroll around Yamashita Park or explore Minato Mirai between showers. But long outdoor days feel tiring in the humidity, and beaches are less appealing when rain or rough seas roll in. Save the open-air sights for clearer spells, and have an indoor stop in mind.
Events and local days
Yokohama Oktoberfest often begins at the Red Brick Warehouse in late September, with German food and beer. Dates vary, so check the event schedule before you go. The month can also include Silver Week, a cluster of Japanese public holidays when many locals travel.
Travelling with kids? The Cup Noodles Museum in Minato Mirai makes a useful rainy-day stop, though it can be busy on weekends and holidays.
Crowds and practical tips
September is usually quieter than August, when summer holidays bring more families to the waterfront. It can also feel less crowded than November, one of Yokohama's best-loved months. Hotels and flights may be less in demand than in peak autumn, but Silver Week and Oktoberfest weekends can bring a rush.
If rain catches you near the Red Brick Warehouse, follow the covered route towards the nearby Marine & Walk shops for a dry break. Yokohama's weather can change quickly, so check the forecast before setting out for the waterfront.
September weather at a glance
| Average high | 27°C (81°F) |
|---|---|
| Average low | 20°C (67°F) |
| Daily mean | 23°C (74°F) |
| Rainfall | 218 mm (8.6 in) |
| Rainy days (1 mm+) | 15 |
| Humidity | 84% |
| Cloud cover | 70% |
| Daylight | 12.2 hours |
| Est. sunshine | 4 hours/day |
| Wind | 8.6 km/h |
| vs August | 4°C cooler than August, with 55 mm more rain. |
What to pack for Yokohama in September
- light, breathable clothing
- sunscreen and a hat
- an umbrella or rain jacket
Yokohama weather in other months
← AugustBest time to visit YokohamaOctober →
Better weather in September nearby
- Istanbul26°C · 51 mm · Excellent
- Tianjin28°C · 59 mm · Excellent
- Shenyang25°C · 58 mm · Excellent
- Wuzhong26°C · 39 mm · Excellent
- Zibo28°C · 58 mm · Excellent
- UEruemqi25°C · 21 mm · Excellent
Nearby in September
- Kawasaki28°C · 217 mm
- Tokyo28°C · 217 mm
- Saitama28°C · 204 mm
- Nagoya28°C · 213 mm
- Sendai25°C · 153 mm
- Kyoto27°C · 187 mm
Where else is good in September? See where to go in September.