What is the weather like in Nagasaki in August?

Expect temperatures between 26°C and 30°C with 37% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Nagasaki in August?

Nagasaki in August scores 51/100 based on 30 years of climate data. Decent conditions for most activities.

Who should visit Nagasaki in August?

August in Nagasaki is ideal for: Business travelers.

Nagasaki Weather in August | 30-Year Forecast

Avg High

30°C

Hottest around day 6

Avg Low

26°C

Coolest around day 31

Rainy Days

26days

37% avg rain chance

Sunshine

8hrs/day

Summer season

Sea Temperature in August

Coastal Waters(Ocean)

29.7°C

Monthly Average

Water Feel

🌴Tropical

Perfect for swimming and water sports

Swim Rating

✅Excellent for swimming

Based on average sea surface temperature

Body of Water

Coastal Waters

Ocean

Nagasaki coastline

Nagasaki August Weather Calendar

Click any day to see detailed weather information

Day 1

Cloudy

31°C21%

Day 2

Cloudy

31°C21%

Day 3

Cloudy

31°C22%

Day 4

Cloudy

31°C21%

Day 5

Cloudy

31°C24%

Day 6

Cloudy

31°C29%

Day 7

Cloudy

31°C35%

Day 8

Cloudy

31°C38%

Day 9

Cloudy

31°C40%

Day 10

Rainy

30°C41%

Day 11

Cloudy

30°C40%

Day 12

Cloudy

30°C37%

Day 13

Cloudy

30°C37%

Day 14

Cloudy

30°C38%

Day 15

Rainy

30°C41%

Day 16

Rainy

30°C44%

Day 17

Rainy

30°C43%

Day 18

Rainy

30°C45%

Day 19

Rainy

30°C48%

Day 20

Rainy

30°C43%

Day 21

Rainy

30°C43%

Day 22

Rainy

30°C48%

Day 23

Rainy

30°C46%

Day 24

Rainy

30°C44%

Day 25

Rainy

30°C42%

Day 26

Cloudy

30°C38%

Day 27

Cloudy

30°C34%

Day 28

Cloudy

29°C35%

Day 29

Cloudy

29°C37%

Day 30

Rainy

29°C42%

Day 31

Rainy

29°C43%

Essential Travel Info for Nagasaki

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

JPY

¥ Japanese yen

Language

Japanese

Driving

Left side

Safety

Very High Safety

GPI: 1.336

Travel Intelligence

Exclusive flight analytics & health data for Nagasaki

Smart Flight Estimator

Airport-to-Airport Logistics

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Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Remote

19/ 100

Traffic Index

Off the beaten path

Peak Daily Arrivals

slots per day

Peak

Feb

Low

Jul

Monthly Traffic Distribution

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Traffic Level

Low Season

Key Connections

Tokyo (HND)

Osaka (ITM)

Kobe (UKB)

Tsushima (TSJ)

Goto Fukue (FUJ)

Health & Safety Advisory

CDC travel health recommendations

8 Recommendations

COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Hepatitis A

Consider hepatitis A vaccination for most travelers. It is recommended for travelers who will be doing higher risk activities, such as visiting smaller cities, villages, or rural areas where a traveler might get infected through food or water. It is recommended for travelers who plan on eating street food.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to Japan. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Japan.

Japanese Encephalitis

Recommended for travelers whoAre moving to an area with Japanese encephalitis to liveSpend long periods of time, such as a month or more, in areas with Japanese encephalitisFrequently travel to areas with Japanese encephalitisConsider vaccination for travelersSpending less than a month in areas with Japanese encephalitis but will be doing activities that increase risk of infection, such as visiting rural areas, hiking or camping, or staying in places without air conditioning, screens, or bed netsGoing to areas with Japanese encephalitis who are uncertain of their activities or how long they will be thereNot recommended for travelers planning short-term travel to urban areas or travel to areas with no clear Japanese encephalitis season.

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

Rabies

Dogs infected with rabies are not commonly found in Japan.If rabies exposures occur while in Japan, rabies vaccines are typically available throughout most of the country.Rabies pre-exposure vaccination considerations include whether travelers 1) will be performing occupational or recreational activities that increase risk for exposure to potentially rabid animals and 2) might have difficulty getting prompt access to safe post-exposure prophylaxis.Please consult with a healthcare provider to determine whether you should receive pre-exposure vaccination before travel.For more information, seecountry rabies status assessments.

+2 more

Source: CDC Travelers' Health

View Complete Health Guide

Is August a Good Time to Visit Nagasaki?

👌Decent conditions for most activities(51/100)

Short Answer

⚠️ August falls in Nagasaki's typhoon season. While daily weather averages 30°C with 37% rain, tropical storms can disrupt travel. Flexible bookings recommended.

Decision Factors

Typhoon season active

Western Pacific zone - expect potential typhoon activity

Oppressive heat and humidity

30°C with 83% humidity - challenging conditions

Vaccinations required

Yellow Fever

Feels significantly hotter than 30°C

Heat index: 39°C due to 83% humidity

Warm tropical seas

29.7°C sea temperature - Hot Soup

Health precautions needed

Be aware of: Leptospirosis, Hantavirus, Tuberculosis (TB)

Good For

💼
Business travelers
Climate-controlled meetings unaffected by weather

Who Should Avoid

👨‍👩‍👧‍👦
Families with children
39°C heat index dangerous for children
👴
Elderly travelers
Heat index of 39°C poses health risks
💼
Business travelers
Storm season may cause flight disruptions
🌡️
Heat-sensitive visitors
39°C feels-like temperature creates discomfort

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Nagasaki in August averages 30°C with 37% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Nagasaki in August

What are the temperatures in Nagasaki in August?

Daytime highs average 30°C, nights drop to 26°C. Temperatures remain fairly consistent.

How many rainy days in Nagasaki in August?

Expect around 26 days with measurable rainfall. An umbrella is advisable.

What to wear in Nagasaki in August?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is August peak season in Nagasaki?

This is shoulder season—moderate prices and manageable crowds.

Nagasaki Weather in August

Sea Temperature in August

Nagasaki August Weather Calendar

Essential Travel Info for Nagasaki

Travel Intelligence

Smart Flight Estimator

Flight Connectivity Analysis

Monthly Traffic Distribution

Key Connections

Health & Safety Advisory

COVID-19

Hepatitis A

Hepatitis B

Japanese Encephalitis

Measles

Rabies

Decision Factors

Good For

Who Should Avoid

Related Guides

Frequently Asked Questions: Nagasaki in August

What are the temperatures in Nagasaki in August?

How many rainy days in Nagasaki in August?

What to wear in Nagasaki in August?

Is August peak season in Nagasaki?