Current Conditions

Isahaya, Nagasaki

81°F27°C

Drizzle

Wind

SSW 3 mph4 km/h

Humidity

76%

Cloud Cover

71%

As of Thursday, August 13, 2026 at 9:06 PM GMT+9

Today's Outlook

Night

Mostly cloudy, with a low around 79°F26°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. 19% chance of drizzle overnight.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 86°F30°CFeels 91°F33°C	Low 78°F25°C	Precip 0.03 in0.7 mm22%	Cloud 55%	Wind SSW 6 mph9 km/h	Friday: Partly cloudy and warm, with a high of 86°F30°C and morning low of 78°F25°C — feels like 91°F33°C. Breezy from the SSW at 7 to 9 mph11 to 15 km/h. 22% chance of drizzle in the morning. Heavy, humid air. Friday Night: Mostly cloudy, with a low around 79°F26°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. 19% chance of drizzle overnight.
Light Rain	High 86°F30°CFeels 90°F32°C	Low 79°F26°C	Precip 0.1 in2.6 mm46%	Cloud 88%	Wind S 7 mph11 km/h	Saturday: Overcast and warm, with a high of 86°F30°C and morning low of 79°F26°C. Breezy from the S at 7 to 9 mph12 to 14 km/h. 21% chance of drizzle throughout the day. Heavy, humid air. Saturday Night: Overcast, with a low around 79°F26°C. Breezy from the S at 6 to 8 mph10 to 13 km/h. 46% chance of light rain throughout the night.
Rain	High 80°F27°C	Low 78°F26°C	Precip 1.05 in26.7 mm86%	Cloud 98%	Wind SSE 10 mph16 km/h	Sunday: Overcast and warm, with a high of 80°F27°C. Breezy from the SSE at 11 mph17 km/h. 86% chance of rain throughout the day. Heavy, humid air. Sunday Night: Overcast, with a low around 79°F26°C. Breezy from the SSE at 9 to 11 mph15 to 17 km/h. 81% chance of light rain throughout the night.
Light Rain	High 83°F28°CFeels 90°F32°C	Low 79°F26°C	Precip 0.42 in10.7 mm69%	Cloud 87%	Wind S 9 mph14 km/h	Monday: Overcast and warm, with a high of 83°F28°C — feels like 90°F32°C. Breezy from the S at 10 mph16 km/h. 69% chance of light rain throughout the day. Heavy, humid air. Monday Night: Overcast, with a low around 79°F26°C. Breezy from the S at 8 to 10 mph13 to 16 km/h. 58% chance of light rain throughout the night.
Showers	High 87°F31°CFeels 97°F36°C	Low 80°F26°C	Precip 0.1 in2.5 mm21%	Cloud 51%	Wind S 5 mph8 km/h	Tuesday: Partly cloudy and hot, with a high of 87°F31°C and morning low of 80°F26°C — feels like 97°F36°C. Light wind from the S around 5 mph8 km/h. 12% chance of drizzle in the morning. Heat risk in the afternoon. Tuesday Night: Mostly cloudy, with a low around 80°F27°C. Light wind from the SSW around 5 mph8 km/h. 21% chance of showers overnight.
Showers	High 88°F31°CFeels 100°F38°C	Low 81°F27°CFeels 87°F31°C	Precip 0.09 in2.2 mm38%	Cloud 50%	Wind E 4 mph6 km/h	Wednesday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 81°F27°C — feels like 100°F38°C. Light wind from the E around 4 mph7 km/h. 23% chance of drizzle around midday. Heat risk in the afternoon. Wednesday Night: Mostly cloudy, with a low around 81°F27°C. Light wind from the E around 3 mph6 km/h. 38% chance of showers in the evening.
Showers	High 87°F31°CFeels 99°F37°C	Low 82°F28°CFeels 90°F32°C	Precip 0.26 in6.7 mm47%	Cloud 64%	Wind SE 5 mph8 km/h	Thursday: Mostly cloudy and hot, with a high of 87°F31°C and morning low of 82°F28°C — feels like 99°F37°C. Breezy from the SE at 6 to 7 mph9 to 11 km/h. 43% chance of showers throughout the day. Heat risk in the afternoon. Thursday Night: Mostly cloudy, with a low around 82°F28°C. Light wind from the SE around 5 mph7 km/h. 47% chance of showers throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	FridayAug 14	86°F30°C Feels 91°F33°C	78°F25°C	0.03 in0.7 mm· 22%	55%	Drizzle	SSW 6 mph9 km/h
DayPartly cloudy and warm, with a high of 86°F30°C and morning low of 78°F25°C — feels like 91°F33°C. Breezy from the SSW at 7 to 9 mph11 to 15 km/h. 22% chance of drizzle in the morning. Heavy, humid air. NightMostly cloudy, with a low around 79°F26°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. 19% chance of drizzle overnight.
	SaturdayAug 15	86°F30°C Feels 90°F32°C	79°F26°C	0.1 in2.6 mm· 46%	88%	Light Rain	S 7 mph11 km/h
DayOvercast and warm, with a high of 86°F30°C and morning low of 79°F26°C. Breezy from the S at 7 to 9 mph12 to 14 km/h. 21% chance of drizzle throughout the day. Heavy, humid air. NightOvercast, with a low around 79°F26°C. Breezy from the S at 6 to 8 mph10 to 13 km/h. 46% chance of light rain throughout the night.
	SundayAug 16	80°F27°C	78°F26°C	1.05 in26.7 mm· 86%	98%	Rain	SSE 10 mph16 km/h
DayOvercast and warm, with a high of 80°F27°C. Breezy from the SSE at 11 mph17 km/h. 86% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 79°F26°C. Breezy from the SSE at 9 to 11 mph15 to 17 km/h. 81% chance of light rain throughout the night.
	MondayAug 17	83°F28°C Feels 90°F32°C	79°F26°C	0.42 in10.7 mm· 69%	87%	Light Rain	S 9 mph14 km/h
DayOvercast and warm, with a high of 83°F28°C — feels like 90°F32°C. Breezy from the S at 10 mph16 km/h. 69% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 79°F26°C. Breezy from the S at 8 to 10 mph13 to 16 km/h. 58% chance of light rain throughout the night.
	TuesdayAug 18	87°F31°C Feels 97°F36°C	80°F26°C	0.1 in2.5 mm· 21%	51%	Showers	S 5 mph8 km/h
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 80°F26°C — feels like 97°F36°C. Light wind from the S around 5 mph8 km/h. 12% chance of drizzle in the morning. Heat risk in the afternoon. NightMostly cloudy, with a low around 80°F27°C. Light wind from the SSW around 5 mph8 km/h. 21% chance of showers overnight.
	WednesdayAug 19	88°F31°C Feels 100°F38°C	81°F27°C Feels 87°F31°C	0.09 in2.2 mm· 38%	50%	Showers	E 4 mph6 km/h
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 81°F27°C — feels like 100°F38°C. Light wind from the E around 4 mph7 km/h. 23% chance of drizzle around midday. Heat risk in the afternoon. NightMostly cloudy, with a low around 81°F27°C. Light wind from the E around 3 mph6 km/h. 38% chance of showers in the evening.
	ThursdayAug 20	87°F31°C Feels 99°F37°C	82°F28°C Feels 90°F32°C	0.26 in6.7 mm· 47%	64%	Showers	SE 5 mph8 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 82°F28°C — feels like 99°F37°C. Breezy from the SE at 6 to 7 mph9 to 11 km/h. 43% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 82°F28°C. Light wind from the SE around 5 mph7 km/h. 47% chance of showers throughout the night.
	FridayAug 21	86°F30°C Feels 97°F36°C	81°F27°C Feels 88°F31°C	0.47 in12 mm· 53%	74%	Light Rain	SSE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 86°F30°C and morning low of 81°F27°C — feels like 97°F36°C. Breezy from the SSE at 7 to 9 mph12 to 15 km/h. 48% chance of light rain throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 81°F27°C. Breezy from the SSE at 7 to 8 mph11 to 13 km/h. 53% chance of light rain throughout the night.
	SaturdayAug 22	85°F30°C Feels 96°F36°C	81°F27°C Feels 87°F31°C	0.56 in14.3 mm· 46%	70%	Light Rain	S 9 mph15 km/h
DayMostly cloudy and warm, with a high of 85°F30°C and morning low of 81°F27°C — feels like 97°F36°C. Breezy from the S at 10 to 11 mph16 to 18 km/h. 45% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 81°F27°C. Breezy from the S at 8 to 10 mph13 to 16 km/h. 46% chance of light rain throughout the night.
	SundayAug 23	85°F30°C Feels 96°F35°C	80°F27°C	0.35 in8.9 mm· 43%	65%	Showers	SSW 9 mph14 km/h
DayMostly cloudy and warm, with a high of 85°F30°C and morning low of 80°F27°C — feels like 95°F35°C. Breezy from the SSW at 9 to 10 mph15 to 16 km/h. 43% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 81°F27°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 40% chance of showers throughout the night.
	MondayAug 24	85°F30°C Feels 95°F35°C	80°F27°C	0.25 in6.3 mm· 40%	56%	Showers	SW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 85°F30°C and morning low of 80°F27°C — feels like 95°F35°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h. 40% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 81°F27°C. Breezy from the SW at 7 mph11 km/h. 36% chance of showers throughout the night.
	TuesdayAug 25	86°F30°C Feels 96°F36°C	80°F27°C	0.21 in5.4 mm· 40%	49%	Showers	SSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 86°F30°C and morning low of 80°F27°C — feels like 97°F36°C. Breezy from the SSW at 7 to 9 mph12 to 14 km/h. 40% chance of showers throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 80°F27°C. Breezy from the SW at 6 to 8 mph10 to 12 km/h. 31% chance of showers throughout the night.
	WednesdayAug 26	86°F30°C Feels 96°F36°C	80°F27°C	0.25 in6.3 mm· 40%	50%	Showers	SW 7 mph12 km/h
DayMostly cloudy and warm, with a high of 86°F30°C and morning low of 80°F27°C — feels like 97°F36°C. Breezy from the SW at 8 to 9 mph12 to 15 km/h. 40% chance of showers throughout the day. Heat risk in the afternoon. NightPartly cloudy, with a low around 81°F27°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h. 32% chance of showers throughout the night.
	ThursdayAug 27	86°F30°C Feels 96°F36°C	80°F27°C	0.36 in9.1 mm· 40%	54%	Showers	SW 7 mph12 km/h
DayMostly cloudy and warm, with a high of 86°F30°C and morning low of 80°F27°C — feels like 97°F36°C. Breezy from the SW at 8 to 9 mph12 to 14 km/h. 40% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 81°F27°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h. 39% chance of showers throughout the night.
	FridayAug 28	86°F30°C Feels 95°F35°C	80°F27°C	0.18 in4.6 mm· 33%	53%	Showers	SSW 7 mph12 km/h
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 80°F27°C — feels like 95°F35°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h. 33% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 81°F27°C. Light wind from the SSW around 7 mph11 km/h. 30% chance of showers throughout the night.

Nearby Cities

Ōmura8 mi12 km Obita9 mi15 km Nagasaki11 mi18 km Togitsu11 mi18 km Unzen13 mi21 km Minamishimabara17 mi28 km

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

Pattern	Example	Description
/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=11.5	Find 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