Current Conditions

Saikai, Nagasaki

78°F26°C

Partly Cloudy & Wind

Wind

NNE 17 mph28 km/h

Humidity

84%

Cloud Cover

46%

As of Wednesday, September 9, 2026 at 12:44 AM GMT+9

Today's Outlook

Day

Partly cloudy and warm, with a high of 80°F27°C. Windy from the NNE at 21 to 22 mph34 to 36 km/h. Humid.

Night

Partly cloudy, with a low around 77°F25°C. Windy from the NNE at 19 to 21 mph30 to 33 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy & Wind	High 80°F27°C	Low 77°F25°C	Precip 0 in0.1 mm4%	Cloud 41%	Wind NNE 20 mph32 km/h	Wednesday: Partly cloudy and warm, with a high of 80°F27°C. Windy from the NNE at 21 to 22 mph34 to 36 km/h. Humid. Wednesday Night: Partly cloudy, with a low around 77°F25°C. Windy from the NNE at 19 to 21 mph30 to 33 km/h.
Light Rain	High 78°F26°C	Low 74°F23°C	Precip 0.11 in2.8 mm59%	Cloud 80%	Wind NE 14 mph23 km/h	Thursday: Overcast and warm, with a high of 78°F26°C and morning low of 74°F23°C. Windy from the NE at 13 to 16 mph21 to 26 km/h. 59% chance of light rain throughout the day. Humid. Thursday Night: Mostly cloudy, with a low around 75°F24°C. Windy from the NE at 15 to 19 mph24 to 30 km/h. 35% chance of drizzle throughout the night.
Showers	High 82°F28°CFeels 85°F30°C	Low 75°F24°C	Precip 0.12 in3 mm45%	Cloud 52%	Wind NNE 10 mph17 km/h	Friday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 75°F24°C. Breezy from the NNE at 10 to 11 mph17 to 18 km/h. 28% chance of drizzle throughout the day. Humid. Friday Night: Mostly cloudy, with a low around 75°F24°C. Breezy from the NNE at 11 mph17 km/h. 45% chance of showers overnight.
Showers	High 82°F28°CFeels 88°F31°C	Low 76°F25°C	Precip 0.11 in2.9 mm30%	Cloud 44%	Wind NE 6 mph10 km/h	Saturday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 76°F25°C — feels like 88°F31°C. Breezy from the NE at 6 to 8 mph9 to 12 km/h. 30% chance of showers throughout the day. Heavy, humid air. Saturday Night: Partly cloudy, with a low around 76°F25°C. Breezy from the NNE at 6 to 9 mph10 to 14 km/h. 19% chance of drizzle throughout the night.
Showers	High 81°F27°CFeels 88°F31°C	Low 78°F26°C	Precip 0.19 in4.8 mm68%	Cloud 52%	Wind SW 5 mph7 km/h	Sunday: Mostly cloudy and warm, with a high of 81°F27°C — feels like 88°F31°C. Light wind from the SSW around 5 mph8 km/h. 68% chance of showers throughout the day. Heavy, humid air. Sunday Night: Partly cloudy, with a low around 79°F26°C. Light wind from the NNE around 4 mph7 km/h. 45% chance of drizzle throughout the night.
Showers	High 82°F28°CFeels 87°F31°C	Low 78°F25°C	Precip 0.13 in3.2 mm47%	Cloud 47%	Wind N 5 mph9 km/h	Monday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 78°F25°C — feels like 88°F31°C. Light wind from the NNW around 5 mph8 km/h. 47% chance of showers throughout the day. Heavy, humid air. Monday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the N at 6 to 8 mph9 to 13 km/h. 39% chance of showers throughout the night.
Showers	High 81°F27°CFeels 85°F29°C	Low 77°F25°C	Precip 0.2 in5.1 mm39%	Cloud 63%	Wind NNE 7 mph12 km/h	Tuesday: Mostly cloudy and warm, with a high of 81°F27°C. Breezy from the NNE at 7 to 8 mph11 to 12 km/h. 39% chance of showers throughout the day. Heavy, humid air. Tuesday Night: Mostly cloudy, with a low around 78°F25°C. Breezy from the NNE at 8 to 9 mph13 to 15 km/h. 35% chance of showers throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	80°F27°C	77°F25°C	0 in0.1 mm· 4%	41%	Partly Cloudy & Wind	NNE 20 mph32 km/h
DayPartly cloudy and warm, with a high of 80°F27°C. Windy from the NNE at 21 to 22 mph34 to 36 km/h. Humid. NightPartly cloudy, with a low around 77°F25°C. Windy from the NNE at 19 to 21 mph30 to 33 km/h.
	ThursdaySep 10	78°F26°C	74°F23°C	0.11 in2.8 mm· 59%	80%	Light Rain	NE 14 mph23 km/h
DayOvercast and warm, with a high of 78°F26°C and morning low of 74°F23°C. Windy from the NE at 13 to 16 mph21 to 26 km/h. 59% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 75°F24°C. Windy from the NE at 15 to 19 mph24 to 30 km/h. 35% chance of drizzle throughout the night.
	FridaySep 11	82°F28°C Feels 85°F30°C	75°F24°C	0.12 in3 mm· 45%	52%	Showers	NNE 10 mph17 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 75°F24°C. Breezy from the NNE at 10 to 11 mph17 to 18 km/h. 28% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 75°F24°C. Breezy from the NNE at 11 mph17 km/h. 45% chance of showers overnight.
	SaturdaySep 12	82°F28°C Feels 88°F31°C	76°F25°C	0.11 in2.9 mm· 30%	44%	Showers	NE 6 mph10 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 76°F25°C — feels like 88°F31°C. Breezy from the NE at 6 to 8 mph9 to 12 km/h. 30% chance of showers throughout the day. Heavy, humid air. NightPartly cloudy, with a low around 76°F25°C. Breezy from the NNE at 6 to 9 mph10 to 14 km/h. 19% chance of drizzle throughout the night.
	SundaySep 13	81°F27°C Feels 88°F31°C	78°F26°C	0.19 in4.8 mm· 68%	52%	Showers	SW 5 mph7 km/h
DayMostly cloudy and warm, with a high of 81°F27°C — feels like 88°F31°C. Light wind from the SSW around 5 mph8 km/h. 68% chance of showers throughout the day. Heavy, humid air. NightPartly cloudy, with a low around 79°F26°C. Light wind from the NNE around 4 mph7 km/h. 45% chance of drizzle throughout the night.
	MondaySep 14	82°F28°C Feels 87°F31°C	78°F25°C	0.13 in3.2 mm· 47%	47%	Showers	N 5 mph9 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 78°F25°C — feels like 88°F31°C. Light wind from the NNW around 5 mph8 km/h. 47% chance of showers throughout the day. Heavy, humid air. NightPartly cloudy, with a low around 78°F26°C. Breezy from the N at 6 to 8 mph9 to 13 km/h. 39% chance of showers throughout the night.
	TuesdaySep 15	81°F27°C Feels 85°F29°C	77°F25°C	0.2 in5.1 mm· 39%	63%	Showers	NNE 7 mph12 km/h
DayMostly cloudy and warm, with a high of 81°F27°C. Breezy from the NNE at 7 to 8 mph11 to 12 km/h. 39% chance of showers throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 78°F25°C. Breezy from the NNE at 8 to 9 mph13 to 15 km/h. 35% chance of showers throughout the night.
	WednesdaySep 16	81°F27°C	76°F24°C	0.3 in7.7 mm· 34%	59%	Showers	NNE 10 mph16 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 76°F24°C. Breezy from the NNE at 10 mph16 km/h. 34% chance of showers throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 76°F25°C. Breezy from the NNE at 10 to 12 mph17 to 19 km/h. 28% chance of showers throughout the night.
	ThursdaySep 17	81°F27°C Feels 84°F29°C	76°F24°C	0.27 in6.9 mm· 29%	54%	Showers	NNE 11 mph18 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 76°F24°C. Breezy from the NE at 11 mph17 km/h. 29% chance of showers throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 76°F25°C. Breezy from the NNE at 11 to 12 mph18 to 20 km/h. 26% chance of showers throughout the night.
	FridaySep 18	81°F27°C Feels 84°F29°C	76°F24°C	0.21 in5.3 mm· 25%	54%	Showers	NE 12 mph19 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 76°F24°C. Breezy from the NE at 11 mph18 km/h. 25% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 76°F24°C. Breezy from the NNE at 12 to 13 mph19 to 21 km/h. 23% chance of showers throughout the night.
	SaturdaySep 19	80°F27°C	76°F24°C	0.33 in8.4 mm· 30%	56%	Showers	NE 13 mph21 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 76°F24°C. Breezy from the NE at 13 mph21 km/h. 30% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 76°F25°C. Breezy from the NNE at 13 to 15 mph22 to 24 km/h. 27% chance of showers throughout the night.
	SundaySep 20	79°F26°C	75°F24°C	0.31 in8 mm· 31%	54%	Showers	NNE 14 mph23 km/h
DayMostly cloudy and warm, with a high of 79°F26°C. Breezy from the NNE at 14 to 15 mph23 to 24 km/h. 27% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 75°F24°C. Breezy from the NNE at 14 to 16 mph23 to 25 km/h. 31% chance of showers throughout the night.
	MondaySep 21	78°F26°C	74°F23°C	0.3 in7.7 mm· 25%	51%	Showers	NNE 14 mph22 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 74°F23°C. Breezy from the NNE at 14 mph22 km/h. 23% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 74°F24°C. Breezy from the NNE at 14 mph23 km/h. 25% chance of showers throughout the night.
	TuesdaySep 22	78°F26°C	74°F23°C	0.34 in8.7 mm· 24%	44%	Showers	N 13 mph21 km/h
DayPartly cloudy and warm, with a high of 78°F26°C and morning low of 74°F23°C. Breezy from the N at 13 mph21 km/h. 23% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 74°F23°C. Breezy from the N at 13 mph21 km/h. 24% chance of showers throughout the night.
	WednesdaySep 23	79°F26°C	73°F23°C	0.13 in3.3 mm· 18%	40%	Showers	N 10 mph16 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 73°F23°C. Breezy from the N at 9 to 10 mph15 to 15 km/h. 18% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 74°F23°C. Breezy from the N at 10 to 11 mph16 to 18 km/h. 17% chance of showers throughout the night.

Nearby Cities

Sasebo13 mi21 km Togitsu14 mi23 km Ōmura16 mi26 km Obita16 mi27 km Arita19 mi30 km Nagasaki20 mi32 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: 32.9839°N, 129.6809°E·Elevation: 184m·Timezone: Asia/Tokyo·Population: 26,275