Kawasaki, Japan — Weather in September 2026

Climate Overview

Kawasaki, Japan in September has warm conditions, with highs averaging 26.9°C (80°F). Rain falls on about 14 days this month.

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 28°C (83°F) at the start to 25°C (77°F) by month's end.

Rainfall is heaviest during the first third of the month, while the last third tends to be drier.

Expect around 8.0h of sunshine at the start of September, decreasing to 7.5h by the end.

The warmest days tend to fall around the 1th, averaging 28.5°C (83°F).

Compared to August, this month is about 3°C cooler with 2 more rainy days. Temperatures begin dropping heading into October.

Monthly September Averages

Temperature

27°C / 22°C

Feels Like

30°C / 24°C

Rain

14 days · 169 mm

Sunshine

7.7h / day

Humidity

82% — Very Humid

Wind

24 km/h

Wind Direction

ENE (66°)

Gusts

38 km/h

Daylight

12.4 h

Cloud Cover

67%

Clear Sky Days

1.6

UV Index

5.2 — High

Dew Point

21°C — Muggy

Moon Phase

Waxing Crescent · 11%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 05:25

Daylight 12.4h

Sunset 17:51

What to Expect

Daytime temperatures around 27°C (80°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Rain usually comes in shorter passing showers rather than all-day rain.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	9°C / 2°C	5°C / -3°C	5days (55 mm) Good	7.6h Good	69% Muggy	3.9 Moderate	Poor	View Details
February	10°C / 3°C	6°C / -2°C	8days (58 mm) Wet	8.1h Good	68% Muggy	4.9 Moderate	Poor	View Details
March	14°C / 7°C	11°C / 3°C	12days (130 mm) Wet	7.9h Good	73% Muggy	5.7 High	Fair	View Details
April	18°C / 11°C	16°C / 9°C	11days (123 mm) Wet	8.6h Good	76% Humid	6.9 High	Good	View Details
May best	22°C / 16°C	22°C / 15°C	12days (137 mm) Wet	8.7h Good	79% Humid	7.3 Very High	Excellent	View Details
June best	25°C / 20°C	27°C / 21°C	13days (189 mm) Wet	8.3h Good	82% Humid	7 High	Excellent	View Details
July	29°C / 24°C	33°C / 27°C	12days (152 mm) Wet	8.9h Good	84% Humid	7.2 Very High	Fair	View Details
August	30°C / 25°C	35°C / 29°C	12days (117 mm) Wet	10h Excellent	82% Humid	7.2 Very High	Poor	View Details
September	27°C / 22°C	30°C / 24°C	14days (169 mm) Wet	7.7h Good	82% Humid	5.2 High	Good	View Details
October best	21°C / 16°C	21°C / 14°C	14days (188 mm) Wet	6.5h Fair	79% Humid	4 Moderate	Wet	View Details
November	16°C / 10°C	15°C / 7°C	10days (94 mm) Wet	7h Good	76% Humid	3.6 Moderate	Good	View Details
December	12°C / 5°C	8°C / 0°C	6days (54 mm) Good	7.3h Good	72% Muggy	3.4 Moderate	Fair	View Details

What to Wear

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketWaterproof shoesBreathable clothingSunscreen (SPF 30+)Sun hatSunglasses

Frequently Asked Questions

Expand all

Is September a good time to visit Kawasaki?

September is typically good for visiting Kawasaki, with average highs of 27°C (80°F) and around 14 rainy days. Kawasaki, Japan in September has warm conditions, with highs averaging 26.9°C (80°F). Rain falls on about 14 days this m

Does it rain a lot in Kawasaki in September?

Kawasaki typically sees around 14 rainy days in September with 169 mm (6.7 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Kawasaki in September?

Nights stay pleasantly warm in Kawasaki during September, around 22°C (72°F). Light evening wear is sufficient.

What should I pack for Kawasaki in September?

With highs of 27°C (80°F) and lows of 22°C (72°F) in September, we recommend: Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). Comfortable walking shoes are essential.

Is September among the best months weather-wise in Kawasaki?

September is not the most favourable month weather-wise in Kawasaki. Consider visiting during months with milder temperatures or less rainfall for a better experience.

What is the UV index in Kawasaki in September?

The average UV index in Kawasaki during September is 5 (moderate). Sunscreen and sunglasses are recommended during midday hours.

How many hours of daylight are there in Kawasaki in September?

Kawasaki gets approximately 12 hours of daylight per day in September, with around 8 hours of sunshine.

Does it snow in Kawasaki in September?

Snow is uncommon in Kawasaki during September based on 10-year climate averages.

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