Current Conditions

Kosai, Shizuoka

84°F29°C

Rain

Feels like97°F36°C

Wind

SSW 10 mph16 km/h

Humidity

87%

Cloud Cover

80%

As of Wednesday, September 9, 2026 at 1:02 PM GMT+9

Today's Outlook

Day

Overcast and warm, with a high of 84°F29°C — feels like 97°F36°C. Breezy from the SSW at 10 to 12 mph16 to 19 km/h. 100% chance of rain throughout the day. Heat risk in the afternoon.

Night

Mostly cloudy, with a low around 76°F25°C. Breezy from the W at 8 mph13 km/h. 95% chance of light rain throughout the night.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 84°F29°CFeels 97°F36°C	Low 76°F25°C	Precip 0.51 in12.9 mm100%	Cloud 82%	Wind SW 9 mph15 km/h	Wednesday: Overcast and warm, with a high of 84°F29°C — feels like 97°F36°C. Breezy from the SSW at 10 to 12 mph16 to 19 km/h. 100% chance of rain throughout the day. Heat risk in the afternoon. Wednesday Night: Mostly cloudy, with a low around 76°F25°C. Breezy from the W at 8 mph13 km/h. 95% chance of light rain throughout the night.
Rain	High 75°F24°C	Low 72°F22°C	Precip 0.46 in11.6 mm89%	Cloud 89%	Wind E 8 mph12 km/h	Thursday: Overcast and warm, with a high of 75°F24°C. Breezy from the ESE at 8 to 10 mph14 to 16 km/h. 75% chance of light rain throughout the day. Humid. Thursday Night: Overcast, with a low around 72°F22°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h. 89% chance of rain throughout the night.
Rain	High 77°F25°C	Low 71°F22°C	Precip 1.54 in39 mm98%	Cloud 92%	Wind E 6 mph10 km/h	Friday: Overcast and warm, with a high of 77°F25°C and morning low of 71°F22°C. Breezy from the ENE at 6 to 7 mph9 to 11 km/h. 98% chance of rain throughout the day. Heavy, humid air. Friday Night: Overcast, with a low around 71°F22°C. Breezy from the E at 6 to 8 mph10 to 13 km/h. 98% chance of rain throughout the night.
Light Rain	High 80°F27°C	Low 74°F23°C	Precip 0.18 in4.6 mm39%	Cloud 76%	Wind ESE 5 mph9 km/h	Saturday: Mostly cloudy and warm, with a high of 80°F27°C and morning low of 74°F23°C. Breezy from the ESE at 6 to 7 mph9 to 12 km/h. 39% chance of light rain throughout the day. Heavy, humid air. Saturday Night: Mostly cloudy, with a low around 74°F23°C. Light wind from the E around 5 mph8 km/h. 29% chance of light rain throughout the night.
Showers	High 82°F28°CFeels 88°F31°C	Low 75°F24°C	Precip 0.14 in3.5 mm35%	Cloud 61%	Wind ESE 6 mph9 km/h	Sunday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 75°F24°C — feels like 88°F31°C. Breezy from the ESE at 6 to 7 mph10 to 12 km/h. 35% chance of showers throughout the day. Heavy, humid air. Sunday Night: Mostly cloudy, with a low around 75°F24°C. Light wind from the E around 5 mph8 km/h. 19% chance of showers throughout the night.
Drizzle	High 85°F29°CFeels 93°F34°C	Low 75°F24°C	Precip 0.05 in1.3 mm34%	Cloud 51%	Wind SSE 4 mph7 km/h	Monday: Partly cloudy and warm, with a high of 85°F29°C and morning low of 75°F24°C — feels like 93°F34°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. 34% chance of drizzle throughout the day. Heavy, humid air. Monday Night: Mostly cloudy, with a low around 76°F24°C. Light wind from the ESE around 4 mph6 km/h. 15% chance of drizzle throughout the night.
Rain	High 80°F27°C	Low 76°F24°C	Precip 0.69 in17.4 mm84%	Cloud 93%	Wind ESE 4 mph6 km/h	Tuesday: Overcast and warm, with a high of 80°F27°C and morning low of 76°F24°C. Light wind from the ESE around 4 mph7 km/h. 84% chance of rain throughout the day. Heavy, humid air. Tuesday Night: Overcast, with a low around 76°F24°C. Light wind from the E around 4 mph6 km/h. 82% chance of rain throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	84°F29°C Feels 97°F36°C	76°F25°C	0.51 in12.9 mm· 100%	82%	Rain	SW 9 mph15 km/h
DayOvercast and warm, with a high of 84°F29°C — feels like 97°F36°C. Breezy from the SSW at 10 to 12 mph16 to 19 km/h. 100% chance of rain throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 76°F25°C. Breezy from the W at 8 mph13 km/h. 95% chance of light rain throughout the night.
	ThursdaySep 10	75°F24°C	72°F22°C	0.46 in11.6 mm· 89%	89%	Rain	E 8 mph12 km/h
DayOvercast and warm, with a high of 75°F24°C. Breezy from the ESE at 8 to 10 mph14 to 16 km/h. 75% chance of light rain throughout the day. Humid. NightOvercast, with a low around 72°F22°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h. 89% chance of rain throughout the night.
	FridaySep 11	77°F25°C	71°F22°C	1.54 in39 mm· 98%	92%	Rain	E 6 mph10 km/h
DayOvercast and warm, with a high of 77°F25°C and morning low of 71°F22°C. Breezy from the ENE at 6 to 7 mph9 to 11 km/h. 98% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 71°F22°C. Breezy from the E at 6 to 8 mph10 to 13 km/h. 98% chance of rain throughout the night.
	SaturdaySep 12	80°F27°C	74°F23°C	0.18 in4.6 mm· 39%	76%	Light Rain	ESE 5 mph9 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 74°F23°C. Breezy from the ESE at 6 to 7 mph9 to 12 km/h. 39% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 74°F23°C. Light wind from the E around 5 mph8 km/h. 29% chance of light rain throughout the night.
	SundaySep 13	82°F28°C Feels 88°F31°C	75°F24°C	0.14 in3.5 mm· 35%	61%	Showers	ESE 6 mph9 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 75°F24°C — feels like 88°F31°C. Breezy from the ESE at 6 to 7 mph10 to 12 km/h. 35% chance of showers throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 75°F24°C. Light wind from the E around 5 mph8 km/h. 19% chance of showers throughout the night.
	MondaySep 14	85°F29°C Feels 93°F34°C	75°F24°C	0.05 in1.3 mm· 34%	51%	Drizzle	SSE 4 mph7 km/h
DayPartly cloudy and warm, with a high of 85°F29°C and morning low of 75°F24°C — feels like 93°F34°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h. 34% chance of drizzle throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 76°F24°C. Light wind from the ESE around 4 mph6 km/h. 15% chance of drizzle throughout the night.
	TuesdaySep 15	80°F27°C	76°F24°C	0.69 in17.4 mm· 84%	93%	Rain	ESE 4 mph6 km/h
DayOvercast and warm, with a high of 80°F27°C and morning low of 76°F24°C. Light wind from the ESE around 4 mph7 km/h. 84% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 76°F24°C. Light wind from the E around 4 mph6 km/h. 82% chance of rain throughout the night.
	WednesdaySep 16	80°F26°C	74°F23°C	0.95 in24.1 mm· 84%	94%	Rain	E 5 mph8 km/h
DayOvercast and warm, with a high of 80°F26°C and morning low of 74°F23°C. Light wind from the ESE around 5 mph8 km/h. 84% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 75°F24°C. Light wind from the E around 5 mph8 km/h. 81% chance of rain throughout the night.
	ThursdaySep 17	80°F26°C	74°F23°C	0.72 in18.4 mm· 72%	87%	Rain	E 6 mph10 km/h
DayOvercast and warm, with a high of 80°F26°C and morning low of 74°F23°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. 72% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 74°F23°C. Light wind from the E around 6 mph9 km/h. 66% chance of light rain throughout the night.
	FridaySep 18	81°F27°C Feels 85°F29°C	74°F23°C	0.58 in14.8 mm· 60%	77%	Rain	E 6 mph10 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 74°F23°C. Breezy from the E at 7 to 8 mph11 to 13 km/h. 59% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 74°F23°C. Light wind from the ENE around 6 mph10 km/h. 60% chance of rain throughout the night.
	SaturdaySep 19	80°F27°C	74°F23°C	0.6 in15.3 mm· 60%	78%	Rain	ENE 8 mph13 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 74°F23°C. Breezy from the ENE at 8 to 10 mph14 to 16 km/h. 60% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 74°F23°C. Breezy from the ENE at 8 to 9 mph13 to 15 km/h. 53% chance of rain throughout the night.
	SundaySep 20	80°F27°C	73°F23°C	0.81 in20.7 mm· 65%	70%	Rain	NE 10 mph16 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 73°F23°C. Breezy from the NE at 11 mph17 km/h. 49% chance of rain throughout the day. Humid. NightMostly cloudy, with a low around 74°F23°C. Breezy from the NE at 9 to 10 mph15 to 16 km/h. 65% chance of rain throughout the night.
	MondaySep 21	80°F26°C	72°F22°C	0.64 in16.2 mm· 49%	67%	Showers	ENE 9 mph15 km/h
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 72°F22°C. Breezy from the E at 10 to 11 mph16 to 17 km/h. 49% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 73°F23°C. Breezy from the NE at 9 mph14 km/h. 45% chance of showers throughout the night.
	TuesdaySep 22	81°F27°C	71°F22°C	0.53 in13.4 mm· 46%	58%	Rain	N 9 mph15 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 71°F22°C. Breezy from the NW at 10 to 11 mph15 to 17 km/h. 46% chance of rain throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Breezy from the NNE at 8 to 9 mph14 to 14 km/h. 34% chance of showers throughout the night.
	WednesdaySep 23	80°F27°C	70°F21°C	0.28 in7 mm· 29%	54%	Showers	NNW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 70°F21°C. Breezy from the NNW at 9 to 10 mph14 to 15 km/h. 29% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the N at 7 to 8 mph12 to 12 km/h. 22% chance of showers throughout the night.

Nearby Cities

Arai3 mi4 km Toyohashi9 mi15 km Toyokawa11 mi17 km Kozakai-chō12 mi19 km Hamamatsu12 mi19 km Shinshiro14 mi22 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.

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Coordinates: 34.7005°N, 137.5225°E·Elevation: 30m·Timezone: Asia/Tokyo·Population: 59,770