Yokohama, Japan — Weather in August 2026

Climate Overview

Yokohama, Japan in August has hot conditions, with highs reaching 28.8°C (84°F) and afternoons the warmest part of the day. Rain falls on about 12 days this month. Sea temperature reaches 28°C (82°F).

This month falls at the end of Summer.

Temperatures remain fairly steady throughout August, with daily highs around 29°C (84°F).

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

Expect around 11.1h of sunshine at the start of August, decreasing to 9.4h by the end.

Wind speeds pick up through the month, from 21 km/h (13 mph) to 25 km/h (16 mph).

The warmest days tend to fall around the 8th, averaging 29.3°C (85°F).

Compared to July, this month is about 2°C warmer with 0 fewer rainy days. Temperatures begin dropping heading into September.

Monthly August Averages

Temperature

29°C / 25°C

Feels Like

33°C / 28°C

Rain

12 days · 117 mm

Sunshine

10h / day

Humidity

85% — Very Muggy

Wind

25 km/h

Wind Direction

S (169°)

Gusts

38 km/h

Daylight

13.5 h

Cloud Cover

60%

Clear Sky Days

4.1

UV Index

7.4 — Very High

Sea Temperature

28°C

Dew Point

24°C — Oppressive

Moon Phase

Waxing Crescent · 3%

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 05:02

Daylight 13.5h

Sunset 18:33

What to Expect

Daytime temperatures around 29°C (84°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Rain most often builds later in the day, so mornings are typically the driest window and afternoon showers are more likely.

1 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	9°C / 3°C	5°C / -2°C	5days (55 mm) Good	7.6h Good	64% Muggy	3.3 Moderate	Poor	View Details
February	10°C / 3°C	6°C / -1°C	8days (58 mm) Wet	8.1h Good	64% Muggy	4 Moderate	Poor	View Details
March	13°C / 7°C	10°C / 3°C	12days (130 mm) Wet	7.9h Good	71% Muggy	4.7 Moderate	Fair	View Details
April	17°C / 11°C	15°C / 8°C	11days (123 mm) Wet	8.6h Good	75% Muggy	5.5 High	Good	View Details
May best	21°C / 16°C	21°C / 14°C	12days (137 mm) Wet	8.7h Good	79% Humid	5.8 High	Excellent	View Details
June best	24°C / 19°C	26°C / 20°C	13days (189 mm) Wet	8.3h Good	84% Humid	6.6 High	Excellent	View Details
July	27°C / 23°C	32°C / 26°C	12days (152 mm) Wet	8.9h Good	87% Very Muggy	7.6 Very High	Good	View Details
August	29°C / 25°C	33°C / 28°C	12days (117 mm) Wet	10h Excellent	85% Humid	7.4 Very High	Fair	View Details
September best	26°C / 22°C	29°C / 23°C	14days (169 mm) Wet	7.7h Good	83% Humid	5.8 High	Excellent	View Details
October best	21°C / 16°C	20°C / 14°C	14days (188 mm) Wet	6.5h Fair	77% Humid	4 Moderate	Wet	View Details
November	16°C / 11°C	14°C / 8°C	10days (94 mm) Wet	7h Good	73% Muggy	3.3 Moderate	Good	View Details
December	11°C / 5°C	8°C / 1°C	6days (54 mm) Good	7.3h Good	67% Muggy	3 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 jacketBreathable clothingSunscreen (SPF 30+)Sun hatSunglassesComfortable walking shoes

Frequently Asked Questions

Expand all

Is August a good time to visit Yokohama?

August is typically fair for visiting Yokohama, with average highs of 29°C (84°F) and around 12 rainy days. Yokohama, Japan in August has hot conditions, with highs reaching 28.8°C (84°F) and afternoons the warmest part of the d

Does it rain a lot in Yokohama in August?

Yokohama typically sees around 12 rainy days in August with 117 mm (4.6 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Yokohama in August?

Nights stay pleasantly warm in Yokohama during August, around 25°C (76°F). Light evening wear is sufficient.

What should I pack for Yokohama in August?

With highs of 29°C (84°F) and lows of 25°C (76°F) in August, we recommend: Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. Comfortable walking shoes are essential.

Is August among the best months weather-wise in Yokohama?

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

What is the UV index in Yokohama in August?

The average UV index in Yokohama during August is 7 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.

How many hours of daylight are there in Yokohama in August?

Yokohama gets approximately 14 hours of daylight per day in August, with around 10 hours of sunshine.

Does it snow in Yokohama in August?

Snow is uncommon in Yokohama during August based on 10-year climate averages.

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