Things to Do in Yokohama in September

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Stay in Yokohama in September

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September in Yokohama is typhoon season, and that shapes every plan you make this month. The Kanto region's storm peak tends to run from late August into early October, and one direct hit can shut Osanbashi Pier and halt JR and Keikyu trains for most of a day. Daytime highs still average 28.3°C (83°F), with nights around 22.0°C (72°F), so the first two weeks feel like a gentler August. The air off Tokyo Bay stays heavy and salty, and your shirt will probably stick to you by 10am.

The second half of the month turns. By the equinox, the cicadas in the Yamate hills have mostly gone quiet, evenings along the Yamashita Park promenade finally carry a cool breeze, and bakeries on Chukagai Odori in Chinatown fill their windows with mooncakes ahead of the harvest moon.

In 2026, the calendar matters as much as the weather. Respect for the Aged Day (September 21) and Autumnal Equinox Day (September 23) sandwich an extra national holiday, which creates a five-day Silver Week from September 19 to 23. Domestic travelers fill Minato Mirai hotels for it. Outside that window, Yokohama is noticeably quieter than in October or November, and weekday rooms in Kannai are still easy to find.

Why visit in September

Crowds in Minato Mirai and Chinatown thin out on weekdays outside Silver Week, well below October and November levels.
Mooncakes and lantern displays in Yokohama Chinatown appear in the weeks before the Mid-Autumn Festival.
Late-September evenings on the waterfront drop toward 22°C, so harbor walks after dark become comfortable again.
The Yokohama DeNA BayStars play their final regular-season home games, and pennant-race nights can get loud and dramatic.

Worth knowing

A single typhoon can wipe out one or two days, closing waterfront parks and suspending the Minatomirai Line and JR services.
September ranks as the second-wettest month of Yokohama's year, and akisame autumn rain fronts can stall over Kanagawa for several days.
The early September heat and humidity still make midday walks up the Yamate slopes draining.
Silver Week raises hotel rates and fills day-trip trains to Kamakura and Hakone.

Best for

Think twice if

Weather measured 28° / 22°C 196mm rain · 13 rainy days · 79% humidity rains perceptibly ~2.2h/day · 81% of mornings dry

Crowds medium

Pack Quick-dry short-sleeve shirts and light trousers or skirts, a sturdy folding umbrella that can take gusts, water-resistant walking shoes, and one thin long-sleeve layer for late-month evenings and heavily air-conditioned trains.

Rain totals reach 196mm (7.7 in) across roughly 13 rainy days, making September the second-wettest month after May. Humidity averages 79%, and in the first half of the month the air sits thick and warm, like a damp towel. Typhoons and akisame rain fronts tend to deliver rain in heavy bursts rather than steady drizzle, so a clear morning can turn to sideways rain by 3pm. The days after a storm often bring the clearest, crispest skies of the month over Tokyo Bay, and late September nights feel noticeably cooler against bare arms than August's.

Seasonal caution

Typhoon season peaks this month: the Japan Meteorological Agency issues storm warnings 2 to 3 days ahead, and JR East and Keikyu often announce planned suspensions (keikaku unkyu) the evening before landfall.
Localized downpours can top 50mm (2 in) in an hour, flooding underpasses and the low-lying streets around Yokohama Station's west exit.
Heat stroke alerts run through early September in Kanagawa, where highs still sit near 30°C (86°F).

Year-round climate

Averages from the last 5 years.

Monthly climate averages for Yokohama
Month	Avg high (°C)	Avg low (°C)	Rainfall (mm)
Jan	10	1	38
Feb	11	2	63
Mar	15	6	155
Apr	19	11	172
May	22	15	205
Jun	26	19	185
Jul	31	24	159
Aug	32	25	143
Sep	28	22	196
Oct	22	15	147
Nov	17	10	81
Dec	12	4	54

Holidays and festivals in September

Public holidays

Respect for the Aged Day(敬老の日)20 September 2027
Autumnal Equinox Day(秋分の日)23 September 2027

Best things to do in September

Mooncake tasting along Chukagai Odori

food

Walk Yokohama Chinatown's main street and its side lanes, compare the mooncakes at several bakeries, then stop at Kanteibyo, the temple to Guan Yu, for its lanterns after dark.

Mooncakes are a pre-Mid-Autumn product, and the full seasonal range with gift boxes is on sale mostly from late August through September.

Booking tipGo before 11am on weekdays, since the popular bakeries tend to sell out of single mooncakes by mid-afternoon on the weekend before the festival.

BayStars home game at Yokohama Stadium

sports

Watch the Yokohama DeNA BayStars at their 1977 ballpark beside Kannai Station, with trumpet chants from the right-field stands and draft beer from the stadium's own brewery-branded stalls.

The Central League regular season ends in late September, so the last home stand often carries playoff stakes, and the evening air is finally cooler.

Booking tipTickets for weekend and final-week games go on sale weeks ahead through NPB ticketing channels, and infield seats sell out first.

Post-typhoon view from Yokohama Marine Tower

sightseeing

Ride up the 1961 tower beside Yamashita Park for a 360-degree view across Tokyo Bay, the Bay Bridge and, on a good day, Mount Fuji to the west.

The day after a typhoon passes, the air over Kanto is often scrubbed of haze, and you can sometimes see Fuji's silhouette clearly at sunset, which is rare during August's hazy weeks.

Booking tipCheck the forecast the night a storm clears and aim for the hour before sunset, around 5:30pm in late September.

Harvest-moon evening at Sankei-en

culture

Stroll the 1906 garden in Honmoku during its evening moon-viewing openings, when the relocated farmhouses and three-story pagoda are reflected in the main pond.

Sankei-en has held moon-viewing evenings around the Mid-Autumn full moon in recent years, making it one of the few times the garden stays open after dark.

Booking tipConfirm the dates on the garden's official calendar in early September, since the schedule shifts with the lunar date and weather.

Rainy-day history at the Yokohama Archives of History

museum

The archive opened in 1981 on the site of the former British Consulate in Kannai, tracing the 1859 opening of the port through photographs, maps and treaty-era documents.

A solid typhoon-day fallback: it sits within a 5-minute walk of Nihon-odori Station, so you can stay dry and still spend the day in the old port district.

Night walk from Osanbashi to Akarenga

outdoors

Walk the wooden deck of Osanbashi Pier at dusk, then follow the waterfront to the Red Brick Warehouse and the lit-up Cosmo Clock 21 wheel in Minato Mirai.

By the last 10 days of September, evening temperatures on the pier feel pleasant for a 2km (1.2 mi) walk, which is rarely true in July or August.

What to eat in September

In season: fruit

Hama-nashi pears
Yokohama's own nashi (Asian pear), grown on farms in the city's northern wards, reaches peak ripeness from late August into mid-September. Farm stands sell them crisp and dripping with juice, and supplies are limited.

On menus now

Sanma shioyaki
Pacific saury grilled with salt and served with grated daikon hits izakaya menus in Noge from early September. The skin crackles, the smoke smells faintly sweet, and the fish is fattiest this month.

In markets

Kuri (chestnut) sweets
The new-season chestnut harvest starts in September, and cafes in Motomachi switch to Mont Blanc and kuri kinton by the last week of the month.

Festival food

Geppei (mooncakes)
Chinatown bakeries sell lotus-seed, red-bean and salted-egg-yolk mooncakes in the weeks before the Mid-Autumn Festival, and most shops stop stocking the full range by early October.
Tsukimi dango
Around the harvest moon, plain white rice dumplings stacked in a pyramid for moon viewing appear at Japanese confectioners across Kanagawa.

Regular events in September

Tsurugaoka Hachimangu Reitaisai and yabusameFree

Kamakura's main shrine holds its annual grand festival, and on the final day, mounted archers in Kamakura-era hunting dress shoot at targets from galloping horses. Kamakura is about 25 minutes from Yokohama Station on the JR Yokosuka Line.

September 14-16, with yabusame on September 16

Yokohama Chinatown Mid-Autumn Festival (Chushu-setsu)Free

Red lanterns, lion dances and lantern displays fill Chinatown around the harvest moon, with ceremonies at Kanteibyo and Masobyo temples.

Around the Mid-Autumn full moon, which falls on September 25 in 2026

Yokohama Oktoberfest

A German beer festival in the plaza of the Red Brick Warehouse, with long communal tables, imported lagers, sausages and live brass bands.

Usually opens in the last days of September and runs into mid-October

BayStars final regular-season home stand

The last home games of the Central League season at the Kannai ballpark often turn into farewell ceremonies for retiring players.

Mid to late September

Best places this September

Yamashita Park
park
A seawall park built on rubble from the 1923 Great Kanto Earthquake. The retired ocean liner Hikawa Maru is moored at its eastern end, and late-September evenings here are the first breezy ones of the year.
Yamashita-cho
Minato-no-Mieru-Oka Park (Harbor View Park)
park
This hilltop park overlooks the Bay Bridge, and its rose garden often has a second, smaller autumn bloom starting in late September.
Yamate
Sacred Heart Cathedral
landmark
A 1933 Catholic cathedral on the Yamate bluff, its cool, quiet interior a welcome break on a humid afternoon walk through the old foreigners' quarter.
Yamate
Noge izakaya district
food district
Around 600 small bars and eateries are packed into the lanes south of Sakuragicho Station. Seasonal sanma and cold draft beer are the September order.
Noge
Nogeyama Zoo
zoo
This small hillside zoo opened in 1951 and charges no admission. Animals tend to be more active in the cooler late-September mornings.
Nogeyama
Motomachi Shopping Street
shopping street
A long, walkable street of boutiques and bakeries at the foot of the Yamate hill, where the covered storefront canopies give you some shelter when a shower catches you off guard.
Motomachi

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Wind-resistant folding umbrellaGusts along the Minato Mirai waterfront can flip a cheap convenience-store umbrella inside out within seconds when typhoon outer bands move through. Shop
Quick-dry shirts (2 or 3)At humidity near 80%, cotton stays damp all day, while synthetic or merino tops dry overnight in a hotel room. Shop
Water-resistant walking shoesThe stone steps up to Yamate turn slick after rain, and sneakers need a full day to dry in this humidity. Shop
Thin cardigan or long-sleeve layerTrains and department stores run the air-conditioning hard until October, and once the equinox passes, nights drop close to 20°C (68°F). Shop
Cooling towel or handheld fanEarly-September afternoons in the Kannai grid can still reach 30°C (86°F), with little breeze to take the edge off. Shop
Portable battery packDuring a typhoon, you'll be leaning on your phone for JR East and JMA updates, and hotel power outlets fill up fast if trains stop. Shop
Insect repellentMosquitoes stay active around the ponds and wooded paths of Yokohama's gardens until October. Shop
Zip-lock bagsPack a few to protect your passport and IC card when a downpour catches you between stations. Shop

Insider tips

Install the Japan Tourism Agency's Safety Tips app before you land: it pushes typhoon and heavy-rain alerts in English, often hours before hotel staff mention them.
If a typhoon is forecast, locals shop the day before, and convenience stores near Yokohama Station can run out of bread and onigiri by that evening.
For sanma and beer, head to the standing bars in Noge rather than the chain restaurants in Minato Mirai's malls: prices run noticeably lower, and the fish is grilled over charcoal.
The best clear-sky photo window of the month usually comes the morning after a typhoon passes, so keep one flexible slot in your itinerary for it.
Yamate's Western-style residences, such as Berrick Hall and Ehrismann House, are free to enter and air-conditioned, making them good hilltop stops on hot early-September days.

Avoid these mistakes

Booking a Mount Fuji or Hakone day trip for a fixed date in September. Pick the date 2 or 3 days out, after checking the JMA typhoon track.
Arriving for Silver Week without a hotel booking and assuming Yokohama has spare rooms, since domestic holidaymakers fill the city along with Tokyo.
Expecting autumn color in late September: ginkgo and maple leaves in Yokohama usually turn from late November into early December.
Wearing heavy cotton jeans for full sightseeing days in the first half of the month, when the humidity makes them clammy by noon.

Practical tips for September

Book any stay overlapping Silver Week at least 6 to 8 weeks ahead, and choose a rate with free cancellation in case a typhoon reroutes your plans. When JR East, Keikyu, or the Minatomirai Line announce a planned suspension, services usually halt before the storm peaks and restart gradually the next morning, so avoid scheduling a Narita or Haneda departure for that morning after landfall. Outdoor gardens, observation decks, and harbor cruises tend to close during storm warnings, so check each venue's website that morning. Tipping is not practiced in Japan. Coin lockers at Yokohama Station fill up quickly on rainy weekends, so drop your bags early. A Suica or PASMO card works on every train, bus, and convenience store in the city.

FAQ

Is September a good time to visit Yokohama?

It is a fair month rather than a great one. The typhoon risk and heavy rain put it among the riskier months, ranking around 8th of 12, and late September is noticeably better than early. Weekday visits outside Silver Week reward travelers who keep their plans flexible.

What is the weather like in Yokohama in September?

Expect warm, sticky days in the first half of the month, with cooler and breezier evenings after the equinox. Rain comes in heavy bursts tied to typhoons and autumn fronts rather than all-day drizzle, and a sunny morning can still turn stormy by mid-afternoon.

How do typhoons affect a trip to Yokohama in September?

Most years one or two typhoons pass close enough to disrupt the Kanto region for 12 to 24 hours, with trains stopping on a planned schedule and waterfront attractions closing. The storms rarely last more than a day, and the skies afterward are often the clearest of the month.

Is Yokohama crowded in September?

On weekdays the city moves at a moderate pace, with crowds in Minato Mirai and Chinatown well below the October and November peak. The Silver Week holiday run and the Mid-Autumn weekend in Chinatown are the exceptions, when streets and trains fill with domestic visitors.