What is the weather like in Osaka in August?

Expect temperatures between 25°C and 32°C with 29% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Osaka in August?

Osaka in August scores 53/100 based on 30 years of climate data. Good option with minor considerations.

Who should visit Osaka in August?

August in Osaka is ideal for: Beach lovers, Business travelers.

Osaka Weather in August | 30-Year Forecast

Avg High

32°C

Hottest around day 3

Avg Low

25°C

Coolest around day 31

Rainy Days

24days

29% avg rain chance

Sunshine

8hrs/day

Summer season

Sea Temperature in August

Osaka Bay(大阪湾)

30.1°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

Osaka Bay

大阪湾

Osaka coastline

Essential Travel Info for Osaka

🗓️ 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 Osaka

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Moderate

58/ 100

Traffic Index

Balanced traffic

Peak Daily Arrivals

slots per day

Peak

Nov

Low

May

Monthly Traffic Distribution

242

Jan

253

Feb

258

Mar

238

Apr

238

May

270

Jun

273

Jul

275

Aug

263

Sep

263

Oct

280

Nov

254

Dec

Traffic Level

Low Season

Key Connections

Seoul Incheon (ICN)

Taipei Taiwan Taoyuan (TPE)

Shanghai Pudong (PVG)

Hong Kong Chek Lap Kok (HKG)

Naha (OKA)

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 Osaka?

👌Good option with minor considerations(53/100)

Short Answer

Tropical storm season is active in Osaka during August. Average conditions (32°C, 29% rain) can be interrupted by severe weather. Monitor forecasts closely.

Decision Factors

Typhoon season active

Western Pacific zone - expect potential typhoon activity

Very hot conditions

32.1°C average highs - limit midday exposure

Vaccinations required

Yellow Fever

Feels significantly hotter than 32.1°C

Heat index: 42°C due to 74% humidity

Warm tropical seas

30.1°C sea temperature - Hot Soup

Seismically active region

17 earthquakes recorded in this month (30-year data)

Good For

🏖️
Beach lovers
30.1°C warm seas and 29% rain probability
💼
Business travelers
Climate-controlled meetings unaffected by weather

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere
👨‍👩‍👧‍👦
Families with children
42°C heat index dangerous for children
👴
Elderly travelers
Heat index of 42°C poses health risks
🥾
Outdoor enthusiasts
Extreme conditions limit outdoor activity options

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Osaka in August averages 32°C with 29% precipitation probability."

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

Frequently Asked Questions: Osaka in August

What are the temperatures in Osaka in August?

Daytime highs average 32°C, nights drop to 25°C. Temperatures remain fairly consistent.

How many rainy days in Osaka in August?

Expect around 24 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Osaka in August?

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

Is August peak season in Osaka?

This is shoulder season—moderate prices and manageable crowds.

Osaka Weather in August