Current Conditions

Koga, Ibaraki

78°F26°C

Heavy Rain

Wind

S 9 mph15 km/h

Humidity

93%

Cloud Cover

93%

As of Wednesday, September 9, 2026 at 4:19 AM GMT+9

Today's Outlook

Day

Overcast and hot, with a high of 86°F30°C and morning low of 79°F26°C — feels like 100°F38°C. Breezy from the SW at 8 to 9 mph13 to 15 km/h. 100% chance of heavy rain throughout the day. Heat risk in the afternoon.

Night

Overcast, with a low around 72°F22°C. Breezy from the SE at 6 to 9 mph10 to 15 km/h. 100% chance of heavy rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Heavy Rain	High 86°F30°CFeels 100°F38°C	Low 72°F22°C	Precip 1.26 in32.1 mm100%	Cloud 93%	Wind SSW 7 mph12 km/h	Wednesday: Overcast and hot, with a high of 86°F30°C and morning low of 79°F26°C — feels like 100°F38°C. Breezy from the SW at 8 to 9 mph13 to 15 km/h. 100% chance of heavy rain throughout the day. Heat risk in the afternoon. Wednesday Night: Overcast, with a low around 72°F22°C. Breezy from the SE at 6 to 9 mph10 to 15 km/h. 100% chance of heavy rain throughout the night.
Rain	High 71°F22°C	Low 68°F20°C	Precip 0.52 in13.2 mm93%	Cloud 95%	Wind ENE 4 mph6 km/h	Thursday: Overcast and warm, with a high of 71°F22°C. Light wind from the ENE around 4 mph7 km/h. 58% chance of light rain throughout the day. Thursday Night: Overcast, with a low around 68°F20°C. Light wind from the ENE around 4 mph6 km/h. 93% chance of rain throughout the night.
Rain	High 73°F23°C	Low 66°F19°C	Precip 1.06 in26.8 mm88%	Cloud 88%	Wind NNE 3 mph5 km/h	Friday: Overcast and warm, with a high of 73°F23°C and morning low of 66°F19°C. Light wind from the NNE around 3 mph5 km/h. 88% chance of rain throughout the day. Humid. Friday Night: Overcast, with a low around 66°F19°C. Light wind from the NNE around 3 mph5 km/h. 76% chance of rain throughout the night.
Light Rain	High 78°F26°C	Low 69°F21°C	Precip 0.08 in2 mm19%	Cloud 73%	Wind ENE 3 mph5 km/h	Saturday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 69°F21°C. Light wind from the ENE around 3 mph6 km/h. 19% chance of light rain throughout the day. Humid. Saturday Night: Mostly cloudy, with a low around 69°F21°C. Light wind from the ENE around 3 mph5 km/h. 12% chance of drizzle throughout the night.
Drizzle	High 80°F26°C	Low 70°F21°C	Precip 0.07 in1.8 mm33%	Cloud 78%	Wind ENE 3 mph5 km/h	Sunday: Overcast and warm, with a high of 80°F26°C and morning low of 70°F21°C. Light wind from the E around 3 mph5 km/h. 33% chance of drizzle throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 71°F21°C. Light wind from the ENE around 3 mph5 km/h. 15% chance of drizzle throughout the night.
Light Rain	High 85°F30°CFeels 93°F34°C	Low 73°F23°C	Precip 0.11 in2.7 mm47%	Cloud 74%	Wind SSE 3 mph5 km/h	Monday: Mostly cloudy and warm, with a high of 85°F30°C and morning low of 73°F23°C — feels like 93°F34°C. Light wind from the S around 4 mph6 km/h. 18% chance of drizzle around midday. Heavy, humid air. Monday Night: Mostly cloudy, with a low around 73°F23°C. Light wind from the ESE around 3 mph5 km/h. 47% chance of light rain in the evening.
Rain	High 79°F26°C	Low 73°F23°C	Precip 0.5 in12.6 mm90%	Cloud 95%	Wind ENE 4 mph7 km/h	Tuesday: Overcast and warm, with a high of 79°F26°C. Light wind from the ENE around 5 mph8 km/h. 85% chance of rain throughout the day. Heavy, humid air. Tuesday Night: Overcast, with a low around 73°F23°C. Light wind from the ENE around 4 mph6 km/h. 90% chance of rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	86°F30°C Feels 100°F38°C	72°F22°C	1.26 in32.1 mm· 100%	93%	Heavy Rain	SSW 7 mph12 km/h
DayOvercast and hot, with a high of 86°F30°C and morning low of 79°F26°C — feels like 100°F38°C. Breezy from the SW at 8 to 9 mph13 to 15 km/h. 100% chance of heavy rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 72°F22°C. Breezy from the SE at 6 to 9 mph10 to 15 km/h. 100% chance of heavy rain throughout the night.
	ThursdaySep 10	71°F22°C	68°F20°C	0.52 in13.2 mm· 93%	95%	Rain	ENE 4 mph6 km/h
DayOvercast and warm, with a high of 71°F22°C. Light wind from the ENE around 4 mph7 km/h. 58% chance of light rain throughout the day. NightOvercast, with a low around 68°F20°C. Light wind from the ENE around 4 mph6 km/h. 93% chance of rain throughout the night.
	FridaySep 11	73°F23°C	66°F19°C	1.06 in26.8 mm· 88%	88%	Rain	NNE 3 mph5 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 66°F19°C. Light wind from the NNE around 3 mph5 km/h. 88% chance of rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the NNE around 3 mph5 km/h. 76% chance of rain throughout the night.
	SaturdaySep 12	78°F26°C	69°F21°C	0.08 in2 mm· 19%	73%	Light Rain	ENE 3 mph5 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 69°F21°C. Light wind from the ENE around 3 mph6 km/h. 19% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 69°F21°C. Light wind from the ENE around 3 mph5 km/h. 12% chance of drizzle throughout the night.
	SundaySep 13	80°F26°C	70°F21°C	0.07 in1.8 mm· 33%	78%	Drizzle	ENE 3 mph5 km/h
DayOvercast and warm, with a high of 80°F26°C and morning low of 70°F21°C. Light wind from the E around 3 mph5 km/h. 33% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 71°F21°C. Light wind from the ENE around 3 mph5 km/h. 15% chance of drizzle throughout the night.
	MondaySep 14	85°F30°C Feels 93°F34°C	73°F23°C	0.11 in2.7 mm· 47%	74%	Light Rain	SSE 3 mph5 km/h
DayMostly cloudy and warm, with a high of 85°F30°C and morning low of 73°F23°C — feels like 93°F34°C. Light wind from the S around 4 mph6 km/h. 18% chance of drizzle around midday. Heavy, humid air. NightMostly cloudy, with a low around 73°F23°C. Light wind from the ESE around 3 mph5 km/h. 47% chance of light rain in the evening.
	TuesdaySep 15	79°F26°C	73°F23°C	0.5 in12.6 mm· 90%	95%	Rain	ENE 4 mph7 km/h
DayOvercast and warm, with a high of 79°F26°C. Light wind from the ENE around 5 mph8 km/h. 85% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 73°F23°C. Light wind from the ENE around 4 mph6 km/h. 90% chance of rain throughout the night.
	WednesdaySep 16	75°F24°C	71°F22°C	0.59 in15 mm· 79%	97%	Rain	NE 5 mph7 km/h
DayOvercast and warm, with a high of 75°F24°C. Light wind from the ENE around 5 mph8 km/h. 79% chance of rain throughout the day. Humid. NightOvercast, with a low around 72°F22°C. Light wind from the NE around 4 mph7 km/h. 75% chance of light rain throughout the night.
	ThursdaySep 17	75°F24°C	71°F21°C	0.5 in12.7 mm· 69%	93%	Light Rain	NE 5 mph8 km/h
DayOvercast and warm, with a high of 75°F24°C and morning low of 71°F21°C. Light wind from the NE around 5 mph8 km/h. 69% chance of light rain throughout the day. Humid. NightOvercast, with a low around 71°F22°C. Light wind from the NE around 5 mph7 km/h. 65% chance of light rain throughout the night.
	FridaySep 18	76°F24°C	70°F21°C	0.47 in11.9 mm· 62%	86%	Light Rain	NNE 6 mph10 km/h
DayOvercast and warm, with a high of 76°F24°C and morning low of 70°F21°C. Breezy from the NNE at 7 mph11 km/h. 62% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Light wind from the NNE around 6 mph9 km/h. 59% chance of light rain throughout the night.
	SaturdaySep 19	76°F24°C	70°F21°C	0.86 in21.9 mm· 60%	83%	Rain	NNE 8 mph12 km/h
DayOvercast and warm, with a high of 76°F24°C and morning low of 70°F21°C. Breezy from the NNE at 8 to 9 mph13 to 14 km/h. 60% chance of rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Breezy from the NNE at 7 to 8 mph12 to 13 km/h. 56% chance of rain throughout the night.
	SundaySep 20	76°F25°C	69°F21°C	1.04 in26.4 mm· 58%	82%	Rain	NE 9 mph14 km/h
DayOvercast and warm, with a high of 76°F25°C and morning low of 69°F21°C. Breezy from the NE at 9 to 10 mph15 to 16 km/h. 58% chance of rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Breezy from the NE at 8 to 9 mph14 to 15 km/h. 58% chance of rain throughout the night.
	MondaySep 21	78°F26°C	69°F21°C	0.69 in17.4 mm· 56%	72%	Rain	E 8 mph13 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 69°F21°C. Breezy from the ESE at 8 to 9 mph13 to 14 km/h. 46% chance of rain throughout the day. Humid. NightMostly cloudy, with a low around 70°F21°C. Breezy from the ENE at 8 mph12 km/h. 56% chance of rain throughout the night.
	TuesdaySep 22	79°F26°C	69°F20°C	0.43 in10.9 mm· 39%	65%	Showers	ENE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 69°F20°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h. 30% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 69°F21°C. Light wind from the ENE around 6 mph10 km/h. 39% chance of showers throughout the night.
	WednesdaySep 23	79°F26°C	67°F19°C	0.2 in5 mm· 23%	59%	Showers	NE 5 mph8 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 67°F19°C. Light wind from the NE around 5 mph8 km/h. 23% chance of showers throughout the day. NightMostly cloudy, with a low around 68°F20°C. Light wind from the NE around 5 mph7 km/h. 23% chance of showers throughout the night.

Nearby Cities

Nogi3 mi5 km Kurihashi4 mi6 km Fujioka6 mi10 km Washinomiya7 mi11 km Sakai7 mi12 km Satte8 mi12 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: 36.1833°N, 139.7167°E·Elevation: 17m·Timezone: Asia/Tokyo·Population: 139,344