Weather in Koshigoe

14-day forecast · updated today, Thursday, October 29, at 6:24 pm (GMT+9)

Now · partly cloudy 57 °F

Feels like: 55 °F
Low / high: 47 / 60 °F
Rain: 16% · 0.01 in
Wind: 4 mph N

→ 30.27 inHg · steady

Today in Koshigoe: light drizzle, 47 °F to 60 °F, with a 16% chance of rain (0.01 in) and a light breeze from the north (4 mph). Tomorrow, light drizzle, 52 °F to 69 °F and a 38% chance of rain. The warmest day of the week is Saturday 31, at 71 °F. Next likely rain: Monday 2 (71%).

Temperatures for the next 14 days

60° 47°
Today
69° 52°
Fri 30
71° 53°
Sat 31
62° 52°
Sun 1
63° 54°
Mon 2
70° 52°
Tue 3
60° 55°
Wed 4
63° 55°
Thu 5
74° 58°
Fri 6
59° 52°
Sat 7
57° 49°
Sun 8
50° 48°
Mon 9
62° 47°
Tue 10
55° 44°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Light drizzle	47 / 60 °F	16% · 0.01 in	6 mph N	1.8 ft	7:17 am · 5:30 pm	ECMWF
Fri 30	Light drizzle	52 / 69 °F	38% · 0.02 in	4 mph NNW	4.1 ft	8:15 am · 6:00 pm	ECMWF
Sat 31	Light drizzle	53 / 71 °F	39% · 0.01 in	9 mph NNW	3.9 ft	9:26 am · 6:32 pm	ECMWF
Sun 1	Overcast	52 / 62 °F	2%	8 mph NNE	4.2 ft	10:58 am · 7:11 pm	ECMWF
Mon 2	Light rain	54 / 63 °F	71% · 0.26 in	6 mph N	4.5 ft	12:32 pm · 8:36 pm	ECMWF
Tue 3	Light drizzle	52 / 70 °F	39% · 0.01 in	6 mph N	4.5 ft	1:23 pm · 11:50 pm	ECMWF
Wed 4	Drizzle	55 / 60 °F	37% · 0.23 in	8 mph N	3.3 ft	1:55 pm	ECMWF
Thu 5	Drizzle	55 / 63 °F	61% · 0.17 in	8 mph N	3.3 ft	1:38 am · 2:19 pm	ECMWF
Fri 6	Drizzle	58 / 74 °F	47% · 0.14 in	9 mph N	3.6 ft	2:44 am · 2:42 pm	ECMWF
Sat 7	Overcast	52 / 59 °F	10%	9 mph N	4.1 ft	3:36 am · 3:05 pm	ECMWF
Sun 8	Overcast	49 / 57 °F	10%	6 mph N	3.0 ft	4:20 am · 3:28 pm	ECMWF
Mon 9	Light drizzle	48 / 50 °F	18% · 0.10 in	8 mph NNW	3.3 ft	5:00 am · 3:53 pm	ECMWF
Tue 10	Light drizzle	47 / 62 °F	18% · 0.02 in	9 mph N	3.3 ft	5:39 am · 4:19 pm	ECMWF
Wed 11	Partly cloudy	44 / 55 °F	16%	6 mph N	2.8 ft	6:18 am · 4:45 pm	ECMWF

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Overcast	Mainly clear	Overcast	Overcast	Overcast	Partly cloudy	Light drizzle	Overcast
Temperature	52°	50°	47°	54°	57°	60°	57°	55°
Chance of rain	4%	0%	0%	0%	0%	4%	16%	4%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	6 NNE	6 NNE	5 N	5 NNW	6 NNW	4 NNW	4 NNE	4 NNW
Humidity	63%	66%	72%	63%	60%	66%	78%	81%
UV	0	0	0	1	2	1	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Low confidence

They don't agree on wind tomorrow: it may change, so check again closer to the day.

What 4 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	60°	69°	71°	62°	63°	70°	60°
AIFS	60°	64°	70°	66°	61°	66°	58°
GFS	63°	74°	73°	65°	71°	69°	65°
ICON	63°	71°	74°	67°	74°	68°	64°
Confidence	high	medium	high	high	low	high	medium

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.01 in	0.02 in	0.01 in	0	0.26 in	0.01 in	0.23 in
AIFS	0	0.03 in	0.04 in	0	0.24 in	0.03 in	0.24 in
GFS	0	0	0	0.05 in	0.30 in	0.07 in	0.01 in
ICON	0	0	0	0	0	0	0
Confidence	high	high	medium	medium	medium	medium	low

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	615	411	919	817	638	632	819
AIFS	6	5	5	6	7	6	12
GFS	1313	1916	2023	1820	2029	1415	2120
ICON	716	615	615	716	1431	919	919
Confidence	medium	low	low	medium	medium	medium	medium

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	16%	38%	39%	2%	71%	39%	37%
GFS (GEFS, 31 scenarios)	0%	32%	45%	39%	46%	39%	40%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: a bit warmer, normal rain and a warmer sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Normal 0.0 °F	A bit above +28%	Well above +3.6 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal +0.2 °F	Normal	Above +2.5 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.4 °F	Normal	Above +2.3 °F	60° / 55°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.2 °F	Normal	Above +2.7 °F	59° / 53°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.2 °F	A bit above +22%	Above +2.3 °F	57° / 51°

Coming months

When	TemperatureTemp.	Rain	Sea
November	Above +3.6 °F	Normal	Well above +4.3 °F
December	Above +2.9 °F	A bit above +46%	Above +3.4 °F
January	Above +2.9 °F	Normal	Above +3.1 °F
February	Above +3.8 °F	A bit above +24%	Well above +3.6 °F
March	Above +3.6 °F	Normal	Well above +4.3 °F

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give.

Koshigoe climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Koshigoe is in May and from July to August: highs of 74 °F to 87 °F, about 12 rainy days a month and 6 hours of sunshine a day.

Typhoon season: from July to October, peaking in September. In the last 30 years (1996–2025), 37 tropical cyclones passed within 93 mi of Koshigoe, one or two a year; 15 of them with hurricane-force winds (74 mph or more). The most recent: Peipah, in September 2025.

51° 35°

JanJ
52° 35°

FebF
58° 41°

MarM
67° 50°

AprA
74° 58°

MayM
78° 65°

JunJ
84° 72°

JulJ
87° 74°

AugA
81° 68°

SepS
72° 58°

OctO
64° 48°

NovN
55° 38°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	51°	35°	2.58 in	5	5.7	61°	3.5 ft	–
FebruaryFeb	52°	35°	2.87 in	5	5.5	60°	3.7 ft	–
MarchMar	58°	41°	5.04 in	9	5.7	60°	3.9 ft	–
AprilApr	67°	50°	5.36 in	9	5.9	62°	3.7 ft	–
MayMay	74°	58°	6.30 in	10	5.8	66°	3.2 ft	–
JuneJun	78°	65°	8.38 in	13	4.1	70°	3.1 ft	4
JulyJul	84°	72°	6.69 in	14	5.0	75°	3.3 ft	8
AugustAug	87°	74°	6.27 in	12	6.1	79°	3.6 ft	7
SeptemberSep	81°	68°	8.09 in	13	4.8	78°	3.7 ft	10
OctoberOct	72°	58°	9.00 in	10	4.2	73°	4.0 ft	8
NovemberNov	64°	48°	4.21 in	7	4.3	69°	3.4 ft	–
DecemberDec	55°	38°	2.74 in	5	5.0	65°	3.6 ft	–

Month	Water	Waves	Cyclones
Jan	61°	3.5 ft	–
Feb	60°	3.7 ft	–
Mar	60°	3.9 ft	–
Apr	62°	3.7 ft	–
May	66°	3.2 ft	–
Jun	70°	3.1 ft	4
Jul	75°	3.3 ft	8
Aug	79°	3.6 ft	7
Sep	78°	3.7 ft	10
Oct	73°	4.0 ft	8
Nov	69°	3.4 ft	–
Dec	65°	3.6 ft	–

Days: rainy days in the month. Sun: hours a day.

A normal year brings 67.53 in of rain on about 110 days and about 1,900 hours of sunshine.

Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now57 °Ffeels like 55 °F

Tomorrow52 / 69 °F

It's 57 °F now (feels like 55 °F). Today, 47 °F to 60 °F; tomorrow, 52 °F to 69 °F.

Chance of rain

Today 16% 0.01 in
Fri 30 38% 0.02 in
Sat 31 39% 0.01 in
Sun 1 2%
Mon 2 71% 0.26 in
Tue 3 39% 0.01 in
Wed 4 37% 0.23 in

Today the chance of rain reaches 16%, with 0.01 in in total. The next day with likely rain is Monday 2: 71% and 0.26 in.

Recent rain: last 24 hours, 0.02 in; last 3 days, 0.25 in; last 7 days, 2.48 in.

Humidity and dew point

Humidity79%

Dew point50 °F

Humidity is 79% now and the dew point is 50 °F.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now15 migood

Clouds59%

Visibility is good now (15 mi). No fog expected today.

The model gives visibility up to about 15 mi: beyond that, the horizon is clear.

UV index

Now0

Today's peak3low

Fri 30: 4 · Sat 31: 4 · Sun 1: 4

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady · now Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

29.8030.0030.2030.40 29.80

Steady now (−0.01 inHg in 3 hours). Over the next 48 hours: −0.39 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityPoor · 66

Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Rain	Max wind
Wed 28	Light drizzle	52 / 67 °F	0.01 in	10 mph N
Tue 27	Drizzle	62 / 71 °F	0.05 in	9 mph N
Mon 26	Rain	63 / 68 °F	1.53 in	9 mph N
Sun 25	Light rain	62 / 79 °F	0.43 in	13 mph SW
Sat 24	Light rain	60 / 67 °F	0.45 in	6 mph N
Fri 23	Overcast	57 / 71 °F	0	6 mph NNE
Thu 22	Partly cloudy	63 / 76 °F	0	11 mph N

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Overcast	68 / 84 °F	0	17 mph SSW
Tue 20	Light drizzle	68 / 81 °F	0.05 in	9 mph WSW
Mon 19	Overcast	66 / 80 °F	0	12 mph SSW
Sun 18	Mainly clear	58 / 76 °F	0	8 mph SSW
Sat 17	Partly cloudy	66 / 81 °F	0	8 mph NNE
Fri 16	Overcast	63 / 82 °F	0	6 mph NNW
Thu 15	Overcast	64 / 75 °F	0	10 mph ENE
Wed 14	Light drizzle	66 / 82 °F	0.01 in	11 mph WNW
Tue 13	Light drizzle	64 / 79 °F	0.01 in	7 mph NNE
Mon 12	Partly cloudy	65 / 81 °F	0	8 mph N
Sun 11	Clear sky	62 / 84 °F	0	6 mph NNE
Sat 10	Clear sky	61 / 79 °F	0	6 mph N
Fri 9	Clear sky	60 / 77 °F	0	7 mph NE
Thu 8	Mainly clear	58 / 76 °F	0	6 mph NE
Wed 7	Light drizzle	64 / 78 °F	0.07 in	8 mph N
Tue 6	Overcast	67 / 82 °F	0	9 mph N
Mon 5	Light drizzle	63 / 70 °F	0.01 in	8 mph NNW
Sun 4	Overcast	60 / 72 °F	0	7 mph N
Sat 3	Overcast	64 / 74 °F	0	6 mph NE
Fri 2	Light drizzle	66 / 73 °F	0.11 in	7 mph NNE
Thu 1	Light drizzle	66 / 85 °F	0.04 in	8 mph N
Wed 30	Heavy drizzle	64 / 70 °F	0.42 in	7 mph N
Tue 29	Rain	65 / 72 °F	1.52 in	4 mph E

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in KoshigoeQuestions

What's the weather like today in Koshigoe?

Light drizzle, from 47 °F to 60 °F, with a light breeze from the north (4 mph) and a 16% chance of rain.

Will it rain tomorrow in Koshigoe?

On Friday 30 the chance of rain is 38% (0.02 in): light drizzle.

How warm will it be this week?

Between a low of 47 °F and a high of 71 °F; the warmest day, Saturday 31.

What's the UV index today?

It reaches 3 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.27 inHg and steady: +0.12 inHg over the last 24 hours.

When is the best time to visit Koshigoe?

The best time to visit Koshigoe is in May and from July to August: highs of 74 °F to 87 °F, about 12 rainy days a month and 6 hours of sunshine a day.

What is the weather like in Koshigoe in October?

In October, Koshigoe normally sees highs of 72 °F and lows of 58 °F, with about 10 rainy days (9.00 in for the month) and 4 hours of sunshine a day. The sea is around 73 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Koshigoe?

The warmest is August, with average highs of 87 °F, and the coldest January, with lows of 35 °F. The wettest is October (9.00 in) and the driest, January.

When is typhoon season in Koshigoe?

Typhoon season: from July to October, peaking in September. In the last 30 years (1996–2025), 37 tropical cyclones passed within 93 mi of Koshigoe, one or two a year; 15 of them with hurricane-force winds (74 mph or more). The most recent: Peipah, in September 2025.

More about Koshigoe today

Weather near Koshigoe

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 13 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 6:24 pm (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from