Current Conditions

Isahaya, Nagasaki

84°F29°C
Rain

Feels like94°F34°C

Wind

E 4 mph6 km/h

Humidity

78%

Cloud Cover

81%

As of Thursday, September 3, 2026 at 1:25 AM GMT+9

Today's Outlook

Day

Overcast and warm, with a high of 84°F29°C — feels like 91°F33°C. Breezy from the ENE at 7 to 10 mph11 to 16 km/h. 87% chance of light rain throughout the day. Heavy, humid air.

Night

Overcast, with a low around 80°F26°C. Breezy from the ENE at 7 to 11 mph11 to 18 km/h. 83% chance of rain in the evening.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
RainHigh 84°F29°CFeels 94°F34°CLow 80°F26°CPrecip 0.36 in9.1 mm87%Cloud 95%Wind ENE 7 mph11 km/hThursday: Overcast and warm, with a high of 84°F29°C — feels like 91°F33°C. Breezy from the ENE at 7 to 10 mph11 to 16 km/h. 87% chance of light rain throughout the day. Heavy, humid air. Thursday Night: Overcast, with a low around 80°F26°C. Breezy from the ENE at 7 to 11 mph11 to 18 km/h. 83% chance of rain in the evening.
Heavy RainHigh 79°F26°CLow 75°F24°CPrecip 2.09 in53.2 mm100%Cloud 97%Wind NE 14 mph22 km/hFriday: Overcast and warm, with a high of 78°F26°C. Windy from the NE at 15 to 16 mph24 to 25 km/h. 100% chance of heavy rain throughout the day. Heavy, humid air. Friday Night: Overcast, with a low around 75°F24°C. Breezy from the NE at 13 to 15 mph21 to 25 km/h. 99% chance of rain throughout the night.
Heavy RainHigh 81°F27°CLow 75°F24°CPrecip 1.5 in38 mm88%Cloud 95%Wind NE 14 mph22 km/hSaturday: Overcast and warm, with a high of 81°F27°C and morning low of 75°F24°C. Breezy from the NE at 14 to 15 mph23 to 24 km/h. 65% chance of rain throughout the day. Heavy, humid air. Saturday Night: Overcast, with a low around 75°F24°C. Breezy from the NE at 13 to 14 mph21 to 22 km/h. 88% chance of heavy rain throughout the night.
Light RainHigh 82°F28°CFeels 88°F31°CLow 77°F25°CPrecip 0.45 in11.5 mm55%Cloud 77%Wind NE 13 mph21 km/hSunday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 77°F25°C — feels like 88°F31°C. Breezy from the NE at 14 mph22 km/h. 55% chance of light rain throughout the day. Heavy, humid air. Sunday Night: Mostly cloudy, with a low around 78°F25°C. Breezy from the NNE at 13 mph20 km/h. 46% chance of light rain throughout the night.
ShowersHigh 84°F29°CFeels 90°F32°CLow 77°F25°CPrecip 0.34 in8.6 mm39%Cloud 52%Wind NNE 12 mph19 km/hMonday: Mostly cloudy and warm, with a high of 84°F29°C and morning low of 77°F25°C — feels like 90°F32°C. Breezy from the NNE at 12 to 13 mph20 to 21 km/h. 39% chance of showers throughout the day. Heavy, humid air. Monday Night: Mostly cloudy, with a low around 78°F25°C. Breezy from the NNE at 11 to 12 mph18 to 19 km/h. 38% chance of showers throughout the night.
ShowersHigh 85°F30°CFeels 94°F35°CLow 78°F25°CPrecip 0.14 in3.5 mm29%Cloud 46%Wind NNE 9 mph14 km/hTuesday: Partly cloudy and warm, with a high of 85°F30°C and morning low of 78°F25°C — feels like 95°F35°C. Breezy from the NE at 9 mph14 km/h. 26% chance of showers throughout the day. Heavy, humid air. Tuesday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the NNE at 9 to 10 mph14 to 16 km/h. 29% chance of showers throughout the night.
ShowersHigh 84°F29°CFeels 93°F34°CLow 79°F26°CPrecip 0.3 in7.5 mm55%Cloud 52%Wind NNE 7 mph12 km/hWednesday: Partly cloudy and warm, with a high of 84°F29°C and morning low of 79°F26°C — feels like 93°F34°C. Breezy from the NE at 7 to 8 mph12 to 12 km/h. 47% chance of showers throughout the day. Heavy, humid air. Wednesday Night: Mostly cloudy, with a low around 79°F26°C. Breezy from the NNE at 7 to 8 mph12 to 12 km/h. 55% chance of showers throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdaySep 384°F29°C
Feels 94°F34°C
80°F26°C0.36 in9.1 mm· 87%95%RainENE 7 mph11 km/h
FridaySep 479°F26°C75°F24°C2.09 in53.2 mm· 100%97%Heavy RainNE 14 mph22 km/h
SaturdaySep 581°F27°C75°F24°C1.5 in38 mm· 88%95%Heavy RainNE 14 mph22 km/h
SundaySep 682°F28°C
Feels 88°F31°C
77°F25°C0.45 in11.5 mm· 55%77%Light RainNE 13 mph21 km/h
MondaySep 784°F29°C
Feels 90°F32°C
77°F25°C0.34 in8.6 mm· 39%52%ShowersNNE 12 mph19 km/h
TuesdaySep 885°F30°C
Feels 94°F35°C
78°F25°C0.14 in3.5 mm· 29%46%ShowersNNE 9 mph14 km/h
WednesdaySep 984°F29°C
Feels 93°F34°C
79°F26°C0.3 in7.5 mm· 55%52%ShowersNNE 7 mph12 km/h
ThursdaySep 1083°F28°C
Feels 90°F32°C
78°F25°C0.28 in7.2 mm· 46%58%ShowersNE 8 mph12 km/h
FridaySep 1182°F28°C
Feels 88°F31°C
77°F25°C0.44 in11.2 mm· 53%62%ShowersENE 8 mph12 km/h
SaturdaySep 1282°F28°C
Feels 88°F31°C
77°F25°C0.43 in10.9 mm· 50%62%ShowersNNE 7 mph11 km/h
SundaySep 1382°F28°C
Feels 87°F31°C
76°F25°C0.23 in5.8 mm· 43%58%ShowersNNE 6 mph10 km/h
MondaySep 1482°F28°C
Feels 86°F30°C
76°F24°C0.24 in6.2 mm· 36%60%ShowersNNE 6 mph10 km/h
TuesdaySep 1581°F27°C
Feels 84°F29°C
75°F24°C0.24 in6.2 mm· 46%66%ShowersNNE 6 mph10 km/h
WednesdaySep 1680°F27°C74°F23°C0.33 in8.5 mm· 36%66%ShowersNNE 6 mph10 km/h
ThursdaySep 1780°F27°C74°F23°C0.37 in9.3 mm· 35%65%ShowersNNE 6 mph10 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 32.8411°N, 130.0431°E·Elevation: 104m·Timezone: Asia/Tokyo·Population: 135,546