Destination packing checklists

Yokohama weather in September

Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average

Yokohama September weather at a glance

C Fair 😐

In September, Yokohama averages 26.2°C, with typical highs of 29.7°C and lows of 23.2°C. The historical average is 12 wet days and 77% humidity.

Compared with Seoul in September, it is 3.3°C warmer than Seoul, with a similar number of wet days.

Yokohama September temperature & humidity

Average26.2°CHigh 29.7° / low 23.2°
Humidity77%
Wet days12 days38% of days
Day–night range6.5°

Yokohama September rain & wet days

Wet days12 daysHistorical monthly average
Share of wet days38%Not a forecast probability

Pack a compact umbrella. Keep an indoor stop available between outdoor activities.

What to wear in Yokohama in September

Choose breathable summer clothes and pack sun protection. Showers are possible, so a compact umbrella is useful.

  • DaytimeBreathable short sleeves, hat and sunscreen · average high 29.7°C
  • Morning & eveningLight layer for air-conditioned rooms · average low 23.2°C
  • FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Useful extras
Breathable T-shirtsHat and sunglassesCompact umbrella
Use the Tokyo checklist as a starting point →

Yokohama September sunrise & sunset times

2026 September · Local time (Asia/Tokyo)

Sunrise on the 15th05:24
Sunset on the 15th17:49
Daylight duration12h 25m
Start, middle and end of the month
DateSunriseSunsetDaylight
2026-09-0105:1318:0912h 56m
2026-09-1505:2417:4912h 25m
2026-09-3005:3517:2711h 52m

For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.

Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup

Yokohama travel updates

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Check the camera timestamp at the source.

Yokohama travel essentials

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Best months to visit Yokohama

Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.

ColdHot

September weather by year

September 202426.1°9 wet days, 79% humidity
September 202526.2°14 wet days, 74% humidity

Daily weather in 2025

Daily high and low temperatures; blue labels show precipitation

134°27°
235°27°
335°28°
431°26°6.3mm
526°23°106mm
630°24°
730°25°
832°24°
932°26°
1033°26°
1133°23°23mm
1228°23°12mm
1328°23°8.6mm
1433°27°
1530°25°
1631°24°13mm
1733°25°
1835°24°32mm
1924°21°10mm
2027°21°2mm
2129°21°11mm
2225°20°1.6mm
2324°18°
2426°18°
2528°19°
2630°22°
2727°22°2.3mm
2829°22°
2932°24°2.4mm
3027°21°3.6mm

Frequently asked questions

What is Yokohama weather like in September?

In September, Yokohama averages 26.2°C, with typical highs of 29.7°C and lows of 23.2°C. The historical average is 12 wet days and 77% humidity. Our weather-comfort rating for this month is fair.

Does it rain a lot in Yokohama in September?

There are about 12 wet days in September. A compact umbrella is still useful.

What should I wear in Yokohama in September?

Choose breathable summer clothes and pack sun protection. Showers are possible, so a compact umbrella is useful.

What are the best months to visit Yokohama?

Recent weather data rates November, December among the more comfortable months.

Where can I check Yokohama weather in September in real time?

Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.

What time are sunrise and sunset in Yokohama in September?

On 2026-09-15, calculated sunrise is 05:24 and sunset is 17:49 in local time (Asia/Tokyo). Times vary by date and terrain.

Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations