Weather in Izumi

14-day forecast · updated today, Thursday, October 29, at 11:00 am (GMT+9)

Now · partly cloudy 73 °F

Feels like: 71 °F
Low / high: 54 / 74 °F
Rain: 84% · 0.06 in
Wind: 8 mph S

→ 30.22 inHg · steady

Today in Izumi: light drizzle, 54 °F to 74 °F, with a 84% chance of rain (0.06 in) and a gentle breeze from the south (8 mph). Tomorrow, heavy drizzle, 62 °F to 71 °F and a 100% chance of rain. The warmest day of the week is Monday 2, at 75 °F.

Temperatures for the next 14 days

74° 54°
Today
71° 62°
Fri 30
71° 57°
Sat 31
73° 51°
Sun 1
75° 63°
Mon 2
67° 60°
Tue 3
71° 58°
Wed 4
74° 59°
Thu 5
67° 55°
Fri 6
64° 55°
Sat 7
64° 58°
Sun 8
62° 54°
Mon 9
61° 52°
Tue 10
64° 50°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	Model
Today · 29	Light drizzle	54 / 74 °F	84% · 0.06 in	10 mph SSE	1.0 ft	ECMWF
Fri 30	Heavy drizzle	62 / 71 °F	100% · 0.33 in	10 mph W	1.6 ft	ECMWF
Sat 31	Mainly clear	57 / 71 °F	2%	11 mph N	1.6 ft	ECMWF
Sun 1	Overcast	51 / 73 °F	3%	9 mph SE	1.1 ft	ECMWF
Mon 2	Light rain	63 / 75 °F	80% · 0.28 in	17 mph W	3.9 ft	ECMWF
Tue 3	Overcast	60 / 67 °F	2%	13 mph NNE	2.3 ft	ECMWF
Wed 4	Overcast	58 / 71 °F	10%	8 mph NE	1.2 ft	ECMWF
Thu 5	Overcast	59 / 74 °F	27%	6 mph NNE	0.6 ft	ECMWF
Fri 6	Clear sky	55 / 67 °F	22%	13 mph N	1.9 ft	ECMWF
Sat 7	Overcast	55 / 64 °F	7%	14 mph NNE	2.0 ft	ECMWF
Sun 8	Overcast	58 / 64 °F	8%	12 mph NNE	1.3 ft	ECMWF
Mon 9	Overcast	54 / 62 °F	12%	14 mph N	1.8 ft	ECMWF
Tue 10	Mainly clear	52 / 61 °F	13%	11 mph N	1.2 ft	ECMWF
Wed 11	Overcast	50 / 64 °F	8%	8 mph NNE	1.0 ft	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.

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	Clear	Clear	Mainly clear	Partly cloudy	Overcast	Overcast	Light drizzle
Temperature	55°	55°	55°	68°	74°	73°	71°	64°
Chance of rain	0%	0%	0%	0%	0%	6%	8%	55%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.01 in
Wind (mph)	4 E	7 ESE	7 ESE	7 ESE	10 S	9 SSW	5 S	2 NE
Humidity	87%	88%	86%	62%	53%	55%	62%	94%
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 today: 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	74°	71°	71°	73°	75°	67°	71°
AIFS	74°	73°	73°	74°	73°	72°	74°
GFS	73°	71°	68°	68°	73°	67°	67°
ICON	75°	71°	71°	75°	72°	68°	70°
Confidence	high	high	high	medium	high	high	medium

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.06 in	0.33 in	0	0	0.28 in	0	0
AIFS	0.09 in	0.39 in	0	0	0.38 in	0	0.02 in
GFS	0	0.26 in	0	0	0.36 in	0	0
ICON	0.01 in	0.50 in	0	0	0.02 in	0	0
Confidence	medium	high	high	high	medium	high	high

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1023	1026	1124	921	1732	1330	827
AIFS	8	10	12	8	15	11	9
GFS	149	1314	1315	99	2426	1916	114
ICON	822	522	1128	727	1128	926	412
Confidence	high	medium	high	high	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)	84%	100%	2%	3%	80%	2%	10%
GFS (GEFS, 31 scenarios)	6%	84%	3%	2%	87%	0%	0%

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.

The next few weeks look normal for the time of year.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Normal −0.4 °F	A bit below −43%	A bit above +0.7 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal −0.2 °F	A bit below −21%	Normal −0.2 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +0.9 °F	A bit above +22%	Normal +0.2 °F	63° / 59°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +1.8 °F	A bit above +28%	Normal +0.4 °F	62° / 56°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.0 °F	A bit above +47%	A bit above +0.7 °F	60° / 55°

Coming months

When	TemperatureTemp.	Rain	Sea
November	A bit above +2.2 °F	A bit above +41%	Above +1.8 °F
December	A bit above +1.8 °F	A bit above +48%	A bit above +1.1 °F
January	A bit above +1.8 °F	A bit above +25%	A bit above +0.9 °F
February	A bit above +2.5 °F	A bit above +23%	A bit above +1.1 °F
March	A bit above +1.8 °F	A bit above +27%	A bit above +0.9 °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.

Izumi climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Izumi is in October: highs of 76 °F, about 8 rainy days a month and 6 hours of sunshine a day.

Typhoon season: from July to September, peaking in September. In the last 30 years (1996–2025), 36 tropical cyclones passed within 93 mi of Izumi, one or two a year; 18 of them with hurricane-force winds (74 mph or more). The most recent: Peipah, in September 2025.

52° 37°

JanJ
54° 38°

FebF
60° 44°

MarM
69° 52°

AprA
76° 60°

MayM
80° 67°

JunJ
87° 74°

JulJ
89° 75°

AugA
84° 70°

SepS
76° 60°

OctO
66° 50°

NovN
56° 40°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	52°	37°	3.15 in	7	3.6	63°	4.2 ft	–
FebruaryFeb	54°	38°	3.73 in	8	4.5	61°	3.9 ft	–
MarchMar	60°	44°	5.16 in	11	5.7	62°	3.5 ft	–
AprilApr	69°	52°	6.55 in	10	5.7	64°	3.0 ft	–
MayMay	76°	60°	7.29 in	11	5.7	68°	2.2 ft	–
JuneJun	80°	67°	17.04 in	18	3.9	73°	2.5 ft	1
JulyJul	87°	74°	15.19 in	16	5.7	78°	2.8 ft	7
AugustAug	89°	75°	7.71 in	16	7.2	82°	2.8 ft	11
SeptemberSep	84°	70°	7.19 in	13	6.0	80°	2.6 ft	14
OctoberOct	76°	60°	4.02 in	8	5.7	76°	2.9 ft	2
NovemberNov	66°	50°	4.17 in	8	4.7	71°	3.0 ft	1
DecemberDec	56°	40°	3.52 in	7	3.7	66°	4.3 ft	–

Month	Water	Waves	Cyclones
Jan	63°	4.2 ft	–
Feb	61°	3.9 ft	–
Mar	62°	3.5 ft	–
Apr	64°	3.0 ft	–
May	68°	2.2 ft	–
Jun	73°	2.5 ft	1
Jul	78°	2.8 ft	7
Aug	82°	2.8 ft	11
Sep	80°	2.6 ft	14
Oct	76°	2.9 ft	2
Nov	71°	3.0 ft	1
Dec	66°	4.3 ft	–

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

A normal year brings 84.72 in of rain on about 133 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

Now73 °Ffeels like 71 °F

Tomorrow62 / 71 °F

It's 73 °F now (feels like 71 °F). Today, 54 °F to 74 °F; tomorrow, 62 °F to 71 °F.

Chance of rain

Today 84% 0.06 in
Fri 30 100% 0.33 in
Sat 31 2%
Sun 1 3%
Mon 2 80% 0.28 in
Tue 3 2%
Wed 4 10%

Today the chance of rain reaches 84%, with 0.06 in in total. The next day with likely rain is Friday 30: 100% and 0.33 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.13 in; last 7 days, 1.23 in.

Humidity and dew point

Humidity55%

Dew point56 °F

Humidity is 55% now and the dew point is 56 °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

Clouds62%

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

Now4

Today's peak4moderate

Fri 30: 4 · Sat 31: 5 · Sun 1: 5

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

30.0030.1030.2030.30 30.02

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

Air and pollen

Air qualityFair · 37

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	Clear sky	56 / 69 °F	0	14 mph NNE
Tue 27	Light drizzle	64 / 76 °F	0.01 in	17 mph NNW
Mon 26	Drizzle	71 / 82 °F	0.30 in	17 mph E
Sun 25	Light drizzle	77 / 86 °F	0.04 in	13 mph SSE
Sat 24	Light drizzle	71 / 84 °F	0.05 in	14 mph SE
Fri 23	Light rain	62 / 71 °F	0.83 in	11 mph E
Thu 22	Overcast	63 / 72 °F	0	13 mph NNE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Light drizzle	68 / 80 °F	0.05 in	15 mph WNW
Tue 20	Drizzle	69 / 82 °F	0.06 in	8 mph S
Mon 19	Light drizzle	70 / 82 °F	0.04 in	8 mph SSW
Sun 18	Overcast	64 / 84 °F	0	12 mph SE
Sat 17	Partly cloudy	58 / 81 °F	0	7 mph ENE
Fri 16	Overcast	62 / 77 °F	0	7 mph NE
Thu 15	Overcast	59 / 76 °F	0	9 mph NNE
Wed 14	Drizzle	63 / 75 °F	0.03 in	13 mph NNW
Tue 13	Drizzle	71 / 81 °F	0.16 in	11 mph S
Mon 12	Light drizzle	67 / 84 °F	0.04 in	7 mph S
Sun 11	Light drizzle	66 / 83 °F	0.06 in	7 mph E
Sat 10	Light rain	69 / 79 °F	0.38 in	10 mph E
Fri 9	Drizzle	62 / 80 °F	0.15 in	7 mph NE
Thu 8	Clear sky	59 / 78 °F	0	8 mph NNE
Wed 7	Clear sky	63 / 76 °F	0	11 mph NNE
Tue 6	Overcast	67 / 75 °F	0	13 mph N
Mon 5	Overcast	69 / 80 °F	0	13 mph N
Sun 4	Light drizzle	67 / 78 °F	0.02 in	11 mph NE
Sat 3	Mainly clear	64 / 82 °F	0	9 mph NNE
Fri 2	Overcast	70 / 79 °F	0	11 mph NNE
Thu 1	Overcast	70 / 82 °F	0	9 mph NNW
Wed 30	Partly cloudy	68 / 82 °F	0	7 mph N
Tue 29	Rain	71 / 78 °F	0.98 in	9 mph NNE

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 IzumiQuestions

What's the weather like today in Izumi?

Light drizzle, from 54 °F to 74 °F, with a gentle breeze from the south (8 mph) and a 84% chance of rain.

Will it rain tomorrow in Izumi?

On Friday 30 the chance of rain is 100% (0.33 in): heavy drizzle.

How warm will it be this week?

Between a low of 51 °F and a high of 75 °F; the warmest day, Monday 2.

What's the UV index today?

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

Is the pressure rising or falling?

It's 30.22 inHg and steady: +0.01 inHg over the last 24 hours.

When is the best time to visit Izumi?

The best time to visit Izumi is in October: highs of 76 °F, about 8 rainy days a month and 6 hours of sunshine a day.

What is the weather like in Izumi in October?

In October, Izumi normally sees highs of 76 °F and lows of 60 °F, with about 8 rainy days (4.02 in for the month) and 6 hours of sunshine a day. The sea is around 76 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Izumi?

The warmest is August, with average highs of 89 °F, and the coldest January, with lows of 37 °F. The wettest is June (17.04 in) and the driest, January.

When is typhoon season in Izumi?

Typhoon season: from July to September, peaking in September. In the last 30 years (1996–2025), 36 tropical cyclones passed within 93 mi of Izumi, one or two a year; 18 of them with hurricane-force winds (74 mph or more). The most recent: Peipah, in September 2025.

More about Izumi today

Weather near Izumi

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 8.9 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 11:00 am (local time).

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