Weather in Jōetsu

14-day forecast · updated today, Thursday, October 29, at 8:47 am (GMT+9)

Now · clear sky 56 °F

Feels like: 54 °F
Low / high: 41 / 65 °F
Rain: 0%
Wind: 1 mph ESE

→ 30.28 inHg · steady

Today in Jōetsu: overcast, 41 °F to 65 °F, with a 0% chance of rain and a light air from the east-southeast (1 mph). Tomorrow, drizzle, 55 °F to 67 °F and a 98% chance of rain. The warmest day of the week is Friday 30, at 67 °F.

Temperatures for the next 14 days

65° 41°
Today
67° 55°
Fri 30
66° 51°
Sat 31
59° 50°
Sun 1
62° 53°
Mon 2
61° 53°
Tue 3
61° 53°
Wed 4
67° 53°
Thu 5
64° 49°
Fri 6
49° 44°
Sat 7
59° 43°
Sun 8
49° 40°
Mon 9
56° 39°
Tue 10
56° 42°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Overcast	41 / 65 °F	0%	4 mph S	7.3 ft	2:47 am · 6:12 pm	ECMWF
Fri 30	Drizzle	55 / 67 °F	98% · 0.37 in	6 mph S	2.8 ft	3:27 am · 7:29 pm	ECMWF
Sat 31	Light rain	51 / 66 °F	100% · 0.70 in	12 mph WNW	6.2 ft	4:15 am	ECMWF
Sun 1	Light rain	50 / 59 °F	98% · 0.34 in	6 mph NW	5.8 ft	5:13 am	ECMWF
Mon 2	Heavy drizzle	53 / 62 °F	82% · 0.35 in	3 mph SSW	3.5 ft	6:30 am · 11:17 pm	ECMWF
Tue 3	Drizzle	53 / 61 °F	91% · 0.22 in	10 mph NNW	5.4 ft	8:09 am · 11:33 pm	ECMWF
Wed 4	Overcast	53 / 61 °F	31%	4 mph N	4.1 ft	9:57 am · 11:49 pm	ECMWF
Thu 5	Light drizzle	53 / 67 °F	45% · 0.05 in	6 mph NW	3.4 ft	11:28 am	ECMWF
Fri 6	Rain	49 / 64 °F	69% · 1.35 in	7 mph NW	1.8 ft	12:07 am · 12:42 pm	ECMWF
Sat 7	Heavy drizzle	44 / 49 °F	80% · 0.45 in	4 mph NW	7.5 ft	12:26 am · 1:47 pm	ECMWF
Sun 8	Rain	43 / 59 °F	54% · 0.25 in	4 mph NNW	7.0 ft	12:45 am · 2:47 pm	ECMWF
Mon 9	Rain	40 / 49 °F	49% · 1.12 in	7 mph NW	7.8 ft	1:04 am · 3:42 pm	ECMWF
Tue 10	Light rain	39 / 56 °F	51% · 0.79 in	5 mph WNW	9.3 ft	1:25 am · 4:32 pm	ECMWF
Wed 11	Light rain	42 / 56 °F	51% · 0.44 in	7 mph WSW	7.9 ft	1:49 am · 5:19 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	Clear	Mainly clear	Clear	Clear sky	Mainly clear	Overcast	Partly cloudy	Overcast
Temperature	47°	44°	42°	56°	65°	61°	54°	56°
Chance of rain	0%	0%	0%	0%	0%	0%	0%	0%
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)	1 SSW	1 SSW	3 S	1 ESE	4 N	2 N	0 SSW	1 SSW
Humidity	90%	87%	87%	70%	49%	56%	79%	72%
UV	0	0	0	2	4	1	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Medium confidence

They broadly agree, but not quite on rain tomorrow: take it with some caution.

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	65°	67°	66°	59°	62°	61°	61°
AIFS	64°	65°	62°	61°	61°	61°	60°
GFS	66°	68°	65°	57°	57°	57°	61°
ICON	61°	65°	65°	59°	63°	61°	59°
Confidence	high	high	high	high	medium	high	high

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0	0.37 in	0.70 in	0.34 in	0.35 in	0.22 in	0
AIFS	0	0.23 in	0.84 in	0.09 in	0.38 in	0.35 in	0.13 in
GFS	0	0.10 in	1.26 in	0.12 in	0.90 in	0.30 in	0
ICON	0	0.00 in	0.25 in	0	0.24 in	0.09 in	0.00 in
Confidence	high	medium	medium	medium	medium	medium	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	417	618	1234	617	325	1034	414
AIFS	6	6	6	4	4	5	4
GFS	813	921	1117	59	612	613	55
ICON	612	59	1738	717	1641	920	615
Confidence	high	high	medium	high	medium	high	high

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	0%	98%	100%	98%	82%	91%	31%
GFS (GEFS, 31 scenarios)	0%	71%	100%	71%	97%	84%	13%

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: normal temperatures, normal rain and a slightly warmer sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit below −0.9 °F	A bit above +38%	Above +1.8 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal −0.2 °F	Normal	A bit above +1.6 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.3 °F	Normal	A bit above +1.6 °F	57° / 51°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.2 °F	Normal	A bit above +1.6 °F	55° / 49°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.3 °F	Normal	A bit above +1.4 °F	53° / 47°

Coming months

When	TemperatureTemp.	Rain	Sea
November	Above +2.9 °F	Normal	Above +1.8 °F
December	Above +2.7 °F	Normal	Above +2.0 °F
January	A bit above +2.2 °F	Normal	Above +1.8 °F
February	Above +2.9 °F	Normal	Above +2.0 °F
March	A bit above +2.3 °F	Normal	Above +2.0 °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.

Jōetsu climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Jōetsu is in May: highs of 72 °F, about 10 rainy days a month and 6 hours of sunshine a day.

Typhoon season: in June and in September, peaking in September. In the last 30 years (1996–2025), 16 tropical cyclones passed within 93 mi of Jōetsu, about 5 every 10 years; 3 of them with hurricane-force winds (74 mph or more). The most recent: Nanmadol, in September 2022.

44° 31°

JanJ
44° 30°

FebF
51° 34°

MarM
62° 44°

AprA
72° 53°

MayM
78° 62°

JunJ
85° 70°

JulJ
88° 72°

AugA
80° 65°

SepS
70° 54°

OctO
60° 43°

NovN
49° 34°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	44°	31°	15.24 in	22	2.6	55°	4.7 ft	–
FebruaryFeb	44°	30°	8.97 in	17	3.5	51°	3.9 ft	–
MarchMar	51°	34°	6.48 in	14	4.4	50°	2.8 ft	–
AprilApr	62°	44°	3.81 in	11	5.3	52°	1.8 ft	–
MayMay	72°	53°	3.44 in	10	6.0	59°	1.2 ft	–
JuneJun	78°	62°	4.70 in	12	4.7	67°	1.1 ft	4
JulyJul	85°	70°	7.65 in	16	4.6	74°	0.9 ft	–
AugustAug	88°	72°	5.39 in	14	6.2	80°	1.1 ft	2
SeptemberSep	80°	65°	7.74 in	14	4.5	77°	1.6 ft	8
OctoberOct	70°	54°	8.45 in	14	3.9	71°	2.6 ft	2
NovemberNov	60°	43°	11.25 in	17	3.1	65°	3.2 ft	–
DecemberDec	49°	34°	16.89 in	22	2.4	60°	4.5 ft	–

Month	Water	Waves	Cyclones
Jan	55°	4.7 ft	–
Feb	51°	3.9 ft	–
Mar	50°	2.8 ft	–
Apr	52°	1.8 ft	–
May	59°	1.2 ft	–
Jun	67°	1.1 ft	4
Jul	74°	0.9 ft	–
Aug	80°	1.1 ft	2
Sep	77°	1.6 ft	8
Oct	71°	2.6 ft	2
Nov	65°	3.2 ft	–
Dec	60°	4.5 ft	–

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

A normal year brings 100.02 in of rain on about 183 days and about 1,550 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

Now56 °Ffeels like 54 °F

Tomorrow55 / 67 °F

It's 56 °F now (feels like 54 °F). Today, 41 °F to 65 °F; tomorrow, 55 °F to 67 °F.

Chance of rain

Today 0%
Fri 30 98% 0.37 in
Sat 31 100% 0.70 in
Sun 1 98% 0.34 in
Mon 2 82% 0.35 in
Tue 3 91% 0.22 in
Wed 4 31%

Today the chance of rain reaches 0%. The next day with likely rain is Friday 30: 98% and 0.37 in.

Recent rain: last 24 hours, 0.36 in; last 3 days, 2.22 in; last 7 days, 4.57 in.

Humidity and dew point

Humidity71%

Dew point47 °F

Humidity is 71% now and the dew point is 47 °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

Clouds14%

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

Now2

Today's peak4moderate

Fri 30: 3 · Sat 31: 3 · Sun 1: 2

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

30.0030.2030.40 29.88

Steady now (−0.01 inHg in 3 hours). Over the next 48 hours: −0.34 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 23

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	Rain	48 / 54 °F	1.28 in	10 mph NW
Tue 27	Rain	55 / 70 °F	0.65 in	7 mph NNW
Mon 26	Light rain	62 / 64 °F	0.43 in	4 mph NNW
Sun 25	Rain	64 / 71 °F	1.25 in	7 mph W
Sat 24	Light rain	62 / 67 °F	0.52 in	9 mph S
Fri 23	Overcast	49 / 69 °F	0	5 mph SSW
Thu 22	Light rain	52 / 62 °F	1.05 in	8 mph NNW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Rain	62 / 79 °F	1.04 in	8 mph SW
Tue 20	Rain	65 / 68 °F	0.76 in	5 mph WSW
Mon 19	Rain	64 / 74 °F	0.30 in	12 mph S
Sun 18	Partly cloudy	53 / 79 °F	0	10 mph S
Sat 17	Light drizzle	53 / 69 °F	0.01 in	6 mph NNW
Fri 16	Drizzle	54 / 74 °F	0.12 in	6 mph NNW
Thu 15	Light drizzle	56 / 70 °F	0.01 in	6 mph N
Wed 14	Rain	58 / 72 °F	0.79 in	10 mph W
Tue 13	Clear sky	61 / 79 °F	0	7 mph SSE
Mon 12	Overcast	60 / 76 °F	0	6 mph NNE
Sun 11	Partly cloudy	60 / 77 °F	0	6 mph NW
Sat 10	Clear sky	62 / 78 °F	0	5 mph SSW
Fri 9	Clear sky	57 / 76 °F	0	5 mph SW
Thu 8	Mainly clear	53 / 71 °F	0	6 mph SSW
Wed 7	Drizzle	57 / 70 °F	0.17 in	9 mph NW
Tue 6	Light rain	62 / 67 °F	0.41 in	6 mph NNW
Mon 5	Overcast	62 / 79 °F	0	6 mph S
Sun 4	Light drizzle	59 / 74 °F	0.01 in	5 mph S
Sat 3	Drizzle	59 / 69 °F	0.07 in	6 mph N
Fri 2	Light rain	61 / 73 °F	0.31 in	9 mph NNW
Thu 1	Light rain	63 / 78 °F	0.13 in	7 mph NNW
Wed 30	Mainly clear	60 / 76 °F	0	4 mph ENE
Tue 29	Light rain	64 / 69 °F	0.74 in	4 mph NE

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 JōetsuQuestions

What's the weather like today in Jōetsu?

Overcast, from 41 °F to 65 °F, with a light air from the east-southeast (1 mph) and a 0% chance of rain.

Will it rain tomorrow in Jōetsu?

On Friday 30 the chance of rain is 98% (0.37 in): drizzle.

How warm will it be this week?

Between a low of 41 °F and a high of 67 °F; the warmest day, Friday 30.

What's the UV index today?

It reaches 4 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 30.28 inHg and steady: +0.14 inHg over the last 24 hours.

When is the best time to visit Jōetsu?

The best time to visit Jōetsu is in May: highs of 72 °F, about 10 rainy days a month and 6 hours of sunshine a day.

What is the weather like in Jōetsu in October?

In October, Jōetsu normally sees highs of 70 °F and lows of 54 °F, with about 14 rainy days (8.45 in for the month) and 4 hours of sunshine a day. The sea is around 71 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Jōetsu?

The warmest is August, with average highs of 88 °F, and the coldest February, with lows of 30 °F. The wettest is December (16.89 in) and the driest, May.

When is typhoon season in Jōetsu?

Typhoon season: in June and in September, peaking in September. In the last 30 years (1996–2025), 16 tropical cyclones passed within 93 mi of Jōetsu, about 5 every 10 years; 3 of them with hurricane-force winds (74 mph or more). The most recent: Nanmadol, in September 2022.

More about Jōetsu today

Weather near Jōetsu

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 10 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 8:47 am (local time).

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