Nagoya, Japan — Weather in August 2026

Climate Overview

Nagoya, Japan in August has hot conditions, with highs reaching 31.5°C (89°F) and afternoons the warmest part of the day. Rain falls on about 14 days this month. Sea temperature reaches 30.4°C (87°F).

This month falls at the end of Summer. The combination of heat and frequent rain creates tropical monsoon conditions.

Temperatures remain fairly steady throughout August, with daily highs around 32°C (90°F).

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

Expect around 11.4h of sunshine at the start of August, decreasing to 9.5h by the end.

The warmest days tend to fall around the 1th, averaging 32.6°C (91°F).

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

Monthly August Averages

Temperature

32°C / 24°C

Feels Like

36°C / 29°C

Rain

14 days · 152 mm

Sunshine

9.9h / day

Humidity

80% — Very Muggy

Wind

14 km/h

Wind Direction

S (183°)

Gusts

32 km/h

Daylight

13.4 h

Cloud Cover

59%

Clear Sky Days

3.2

UV Index

7.1 — Very High

Sea Temperature

30°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 05:13

Daylight 13.5h

Sunset 18:44

What to Expect

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.

2 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 / 0°C	5°C / -4°C	5days (43 mm) Good	7.8h Good	71% Muggy	3.3 Moderate	Poor	View Details
February	10°C / 0°C	6°C / -3°C	6days (61 mm) Good	8.2h Good	69% Muggy	4.2 Moderate	Poor	View Details
March	14°C / 4°C	12°C / 1°C	10days (116 mm) Wet	8.3h Good	70% Muggy	4.8 Moderate	Fair	View Details
April	19°C / 9°C	18°C / 7°C	10days (141 mm) Wet	8.9h Good	72% Muggy	5.7 High	Good	View Details
May best	23°C / 14°C	24°C / 14°C	10days (166 mm) Wet	9h Good	75% Muggy	6 High	Excellent	View Details
June best	26°C / 19°C	29°C / 20°C	15days (198 mm) Wet	8.7h Good	79% Humid	6.4 High	Excellent	View Details
July	30°C / 23°C	35°C / 27°C	16days (216 mm) Wet	8.9h Good	83% Humid	7.5 Very High	Wet	View Details
August	32°C / 24°C	36°C / 29°C	14days (152 mm) Wet	9.9h Good	80% Humid	7.1 Very High	Poor	View Details
September	28°C / 21°C	31°C / 24°C	15days (170 mm) Wet	8.3h Good	82% Humid	6.3 High	Good	View Details
October best	22°C / 14°C	23°C / 14°C	11days (156 mm) Wet	7.4h Good	79% Humid	4.3 Moderate	Excellent	View Details
November best	17°C / 7°C	15°C / 5°C	7days (71 mm) Good	7.6h Good	76% Humid	3.6 Moderate	Good	View Details
December	11°C / 2°C	8°C / -1°C	5days (45 mm) Good	7.6h Good	74% Muggy	3 Moderate	Fair	View Details

What to Wear

Light, breathable fabrics like cotton and linen are essential. Opt for loose-fitting clothing in light colors to stay cool.

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

Packing List

UmbrellaWaterproof jacketWaterproof shoesBreathable clothingSunscreen (SPF 30+)Sun hatSunglasses

Frequently Asked Questions

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Is August a good time to visit Nagoya?

August is typically poor for visiting Nagoya, with average highs of 32°C (89°F) and around 14 rainy days. Nagoya, Japan in August has hot conditions, with highs reaching 31.5°C (89°F) and afternoons the warmest part of the day

Does it rain a lot in Nagoya in August?

Nagoya typically sees around 14 rainy days in August with 152 mm (6 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Nagoya in August?

Nights stay pleasantly warm in Nagoya during August, around 24°C (76°F). Light evening wear is sufficient.

What should I pack for Nagoya in August?

With highs of 32°C (89°F) and lows of 24°C (76°F) in August, we recommend: Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). Comfortable walking shoes are essential.

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

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

What is the UV index in Nagoya in August?

The average UV index in Nagoya 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 Nagoya in August?

Nagoya gets approximately 13 hours of daylight per day in August, with around 10 hours of sunshine.

Does it snow in Nagoya in August?

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

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