🇯🇵 Weather in Nagasaki
Map Overlays:
Hourly Forecast for Nagasaki
19:00
22°
6%
20:00
21°
7%
21:00
20°
8%
22:00
20°
8%
23:00
20°
8%
00:00
20°
7%
01:00
19°
7%
02:00
19°
7%
03:00
19°
7%
04:00
19°
7%
05:00
19°
7%
06:00
19°
7%
07:00
20°
5%
08:00
22°
4%
09:00
23°
3%
10:00
23°
2%
11:00
23°
3%
12:00
24°
3%
13:00
24°
3%
14:00
24°
3%
15:00
23°
3%
16:00
23°
4%
17:00
23°
4%
18:00
22°
5%
14-Day Forecast for Nagasaki
2026-06-10
Sunny
25° /
18°
2026-06-11
Sunny
24° /
19°
2026-06-12
Sunny
24° /
18°
2026-06-13
Partly Cloudy
24° /
19°
2026-06-14
Patchy rain nearby
24° /
18°
2026-06-15
Partly Cloudy
24° /
19°
2026-06-16
Partly Cloudy
24° /
21°
Additional Forecasts for Nagasaki
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 157.0 μg/m³
O₃ (Ozone) 129.0 μg/m³
NO₂ (Nitrogen Dioxide) 3.1 μg/m³
SO₂ (Sulphur Dioxide) 3.5 μg/m³
PM2.5 (Fine particles) 14.9 μg/m³
PM10 (Coarse particles) 20.0 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Japan
Weather in Nagasaki — FAQ
Answers refreshed each request based on current conditions in Nagasaki.
What is the weather like right now in Nagasaki?
Right now in Nagasaki, Japan the temperature is 23.9°C (feels like 17.8°C), with sunny. Relative humidity is 66% and wind is 10.8 km/h.
What is today's high and low temperature in Nagasaki?
Today's forecast high in Nagasaki is 25.2°C and the overnight low is 18.1°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Nagasaki today?
The chance of precipitation in Nagasaki today is 6%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Nagasaki differ from nearby cities?
Even short distances can change temperatures noticeably. Nagasaki's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.