Nagasaki weather in August

Considering a trip to Nagasaki this August and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What is the weather like in Nagasaki in August?

Nagasaki is a region in Japan. August in Nagasaki generally has temperatures that range from warm to very warm, with heavy precipitation. The month of August is in the summer season.

The average maximum daytime temperatures vary from warm in Nagasaki at 30°C to very warm in Unzen at 32°C. Nighttime temperatures generally drop to 25°C in Unzen and 26°C in Nagasaki. In Nagasaki, August typically stands out as the hottest month of the year. If you're planning a visit during this time, it would be wise to come prepared. Packing light and breathable summer cloths will ensure you stay comfortable throughout your stay.

In August, precipitation varies across different areas. From heavy rainfall in Hirado with an average of 175 mm to heavy rainfall in Isahaya with 190 mm. Meanwhile, Nagasaki enjoys close to 209 hours of sunlight. This means it's a great month if you prefer bright and sunny days.

To learn more about the conditions in specific areas of Nagasaki in August, check out the map below. For more details on the yearly weather, visit our Nagasaki climate page.

Where to go in Nagasaki in August

Find the average weather conditions in August for the most popular destinations in Nagasaki on the map below. Click on a destination dot for more detailed information.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Nagasaki

What is the weather like in August for the 5 most popular destinations in Nagasaki?

Average weather in Nagasaki

In August Nagasaki generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 26°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Nagasaki
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   July July
<<  
28°C 
25°C 
177 hours 
330 mm 
19 days 
poor 
30°C 
26°C 
209 hours 
188 mm 
17 days 
28°C 
23°C 
173 hours 
214 mm 
17 days 
Climate in Nagasaki

Average weather in Unzen

In August Unzen generally has very high temperatures with maximum daytime temperatures around 32°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Unzen
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   July July
<<  
30°C 
24°C 
177 hours 
350 mm 
20 days 
poor 
32°C 
25°C 
209 hours 
190 mm 
17 days 
29°C 
22°C 
173 hours 
215 mm 
17 days 
Climate in Unzen

Average weather in Sasebo

In August Sasebo generally has very high temperatures with maximum daytime temperatures around 31°C, minimum nighttime temperatures around 26°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Sasebo
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   July July
<<  
30°C 
25°C 
177 hours 
296 mm 
19 days 
poor 
31°C 
26°C 
209 hours 
187 mm 
16 days 
29°C 
22°C 
173 hours 
201 mm 
16 days 
Climate in Sasebo

Average weather in Hirado

In August Hirado generally has very high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 26°C and heavy monthly rainfall. So on average the conditions are tolerable that month.

Hirado
Max temperature Max temp
Min temperature Min temp
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   July July
<<  
29°C 
25°C 
269 mm 
18 days 
poor 
30°C 
26°C 
175 mm 
15 days 
28°C 
23°C 
196 mm 
16 days 
Climate in Hirado

Average weather in Isahaya

In August Isahaya generally has very high temperatures with maximum daytime temperatures around 31°C, minimum nighttime temperatures around 26°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Isahaya
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   July July
<<  
29°C 
25°C 
177 hours 
337 mm 
20 days 
poor 
31°C 
26°C 
209 hours 
190 mm 
17 days 
28°C 
23°C 
173 hours 
211 mm 
17 days 
Climate in Isahaya

Is your destination not in the list? Have a look at other destinations in Nagasaki, in Japan.

Is August the best time to visit Nagasaki?

In our view, August might not be the best time to travel to Nagasaki with often unpleasant weather in Nagasaki.

Generally speaking, the best visiting conditions can be found in October offering mostly pleasant weather in Nagasaki. The weather in February, June and July, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Nagasaki. Interested in the weather conditions in a specific month? Select the month below.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      
  • Weather and climate has detailed information for every country in the world. Are you going to Japan? Get detailed historical weather averages for many cities in Japan.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.