Live Weather & Forecast
Weather in Sasebo
Nagasaki, Japan · Real-time conditions & 3-day outlook
18°C
Feels like 18°C
65°F / Feels 65°F
Partly cloudy
Sasebo, Nagasaki
🌞 Daytime
Updated: 2026-04-15 17:15
Humidity
83%
Wind
16.9 km/h NNE
Wind Gust
19.8 km/h
Pressure
1008 mb
Visibility
10 km
UV Index
0.7
(Low)
Precipitation
0.01 mm
Cloud Cover
75%
Dew Point
13.8°C
Wind Degree
12°
Air Quality Index
US EPA: Moderate
UK DEFRA: Low (2)
CO
327.9 μg/m³
NO₂
13.8 μg/m³
O₃
82 μg/m³
SO₂
3.8 μg/m³
PM 2.5
16.1 μg/m³
PM 10
19.1 μg/m³
Today's Hourly Forecast
24-hour breakdown for Sasebo, Nagasaki
12 AM
16°
Light rain shower
1 AM
17°
Light rain shower
2 AM
17°
Light rain shower
3 AM
17°
Light rain shower
4 AM
17°
Light rain
5 AM
17°
Light rain shower
6 AM
16°
Light rain shower
7 AM
16°
Patchy rain nearby
8 AM
16°
Patchy rain nearby
9 AM
15°
Patchy rain nearby
10 AM
15°
Patchy rain nearby
11 AM
15°
Patchy rain nearby
12 PM
16°
Patchy rain nearby
1 PM
16°
Patchy rain nearby
2 PM
16°
Patchy rain nearby
3 PM
16°
Patchy rain nearby
4 PM
16°
Patchy rain nearby
5 PM
18°
Partly cloudy
6 PM
15°
Partly Cloudy
7 PM
14°
Clear
8 PM
13°
Partly Cloudy
9 PM
13°
Partly Cloudy
10 PM
13°
Partly Cloudy
11 PM
13°
Clear
3-Day Forecast
Daily overview for Sasebo, Nagasaki
Today
Patchy rain nearby
16°
/
13°
🌧️ 89% chance of rain
💧 Avg. humidity: 94%
💨 Max wind: 18 km/h
🌧️ Total precip: 3.95 mm
☀️ UV Index: 0.7
🌅 Sunrise: 05:52 AM
🌇 Sunset: 06:51 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Sunny
19°
/
9°
🌧️ 0% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 28.4 km/h
🌧️ Total precip: 0.03 mm
☀️ UV Index: 2.2
🌅 Sunrise: 05:51 AM
🌇 Sunset: 06:52 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Partly Cloudy
19°
/
10°
🌧️ 0% chance of rain
💧 Avg. humidity: 74%
💨 Max wind: 11.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1
🌅 Sunrise: 05:50 AM
🌇 Sunset: 06:53 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Sasebo
Plan your trip to Sasebo, Japan around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Sasebo?
Current conditions in Sasebo: Partly cloudy, temperature 18°C, humidity 83%.
What is the best time to visit Sasebo?
The best time to visit Sasebo is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Sasebo?
Sasebo is located at approximately 33.2° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Sasebo?
The wettest period in Sasebo is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Sasebo?
For visits to Sasebo during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What are the public holidays in Sasebo in 2026?
View the 2026 public holidays for Sasebo on our Holidays page.
What are the GPS coordinates used for the weather forecast in Sasebo?
The weather forecast for Sasebo uses coordinates 33.18, 129.7153.