Yokohama, Japan — Weather in May 2027

Climate Overview

Yokohama, Japan in May has warm conditions, with highs averaging 20.6°C (69°F). Rain falls on about 12 days this month. Winds are noticeable. Sea temperature stays cool at 18°C (64°F).

This month falls at the end of Spring.

Daily highs in May gradually rise from around 20°C (67°F) at the start to 22°C (71°F) by month's end.

May sees fairly even rainfall, totalling about 136 mm across the month.

Expect around 10.3h of sunshine at the start of May, decreasing to 8.3h by the end.

Wind speeds ease off through the month, from 30 km/h (19 mph) to 25 km/h (16 mph).

The warmest days tend to fall around the 27th, averaging 21.9°C (71°F).

Compared to April, this month is about 4°C warmer with 1 more rainy days. Temperatures will rise further into June.

Monthly May Averages

Temperature

21°C / 16°C

Feels Like

21°C / 14°C

Rain

12 days · 137 mm

Sunshine

8.7h / day

Humidity

79% — Humid

Wind

27 km/h

Wind Direction

S (171°)

Gusts

42 km/h

Daylight

14 h

Cloud Cover

69%

Clear Sky Days

2.7

UV Index

5.8 — High

Sea Temperature

18°C

Dew Point

14°C — Comfortable

Moon Phase

Waxing Gibbous · 66%

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 04:39

Daylight 14h

Sunset 18:39

What to Expect

Daytime temperatures around 21°C (69°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.

Recent yearly records for May have stayed close to the 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

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

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

Packing List

UmbrellaWaterproof jacketSunscreen (SPF 30+)SunglassesComfortable walking shoes

Frequently Asked Questions

Expand all

Is May a good time to visit Yokohama?

May is typically excellent for visiting Yokohama, with average highs of 21°C (69°F) and around 12 rainy days. Yokohama, Japan in May has warm conditions, with highs averaging 20.6°C (69°F). Rain falls on about 12 days this month.

Does it rain a lot in Yokohama in May?

Yokohama typically sees around 12 rainy days in May with 137 mm (5.4 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Yokohama in May?

Evenings in Yokohama during May are mild at 16°C (60°F). A light cardigan is usually enough.

What should I pack for Yokohama in May?

With highs of 21°C (69°F) and lows of 16°C (60°F) in May, we recommend: Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. Comfortable walking shoes are essential.

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

Yes, May offers some of the best weather conditions in Yokohama with comfortable temperatures and lower chances of rain.

What is the UV index in Yokohama in May?

The average UV index in Yokohama during May is 6 (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 May?

Yokohama gets approximately 14 hours of daylight per day in May, with around 9 hours of sunshine.

Does it snow in Yokohama in May?

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

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