Weather in Iwata

14-day forecast · updated today, Thursday, October 29, at 10:09 am (GMT+9)

Now · mainly clear 65 °F

Feels like: 63 °F
Low / high: 51 / 68 °F
Rain: 0%
Wind: 7 mph ESE

→ 30.29 inHg · steady

Today in Iwata: overcast, 51 °F to 68 °F, with a 0% chance of rain and a light breeze from the east-southeast (7 mph). Tomorrow, rain, 61 °F to 70 °F and a 78% chance of rain. The warmest day of the week is Tuesday 3, at 71 °F.

Temperatures for the next 14 days

68° 51°
Today
70° 61°
Fri 30
69° 56°
Sat 31
67° 52°
Sun 1
65° 51°
Mon 2
71° 54°
Tue 3
67° 51°
Wed 4
67° 59°
Thu 5
70° 54°
Fri 6
64° 53°
Sat 7
58° 55°
Sun 8
63° 44°
Mon 9
60° 42°
Tue 10
61° 47°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Overcast	51 / 68 °F	0%	8 mph ENE	2.3 ft	8:12 am · 6:54 pm	ECMWF
Fri 30	Rain	61 / 70 °F	78% · 0.41 in	6 mph NNW	3.5 ft	9:07 am · 7:32 pm	ECMWF
Sat 31	Light drizzle	56 / 69 °F	55% · 0.02 in	14 mph WNW	3.6 ft	10:14 am · 8:20 pm	ECMWF
Sun 1	Overcast	52 / 67 °F	2%	10 mph WNW	4.2 ft	11:42 am · 9:35 pm	ECMWF
Mon 2	Light rain	51 / 65 °F	82% · 0.48 in	9 mph N	5.5 ft	1:17 pm · 11:30 pm	ECMWF
Tue 3	Overcast	54 / 71 °F	27%	12 mph WNW	5.4 ft	2:15 pm	ECMWF
Wed 4	Light drizzle	51 / 67 °F	32% · 0.02 in	6 mph NE	4.1 ft	1:23 am · 2:53 pm	ECMWF
Thu 5	Light drizzle	59 / 67 °F	55% · 0.13 in	6 mph WNW	5.1 ft	2:50 am · 3:22 pm	ECMWF
Fri 6	Clear sky	54 / 70 °F	35%	13 mph WNW	5.6 ft	3:54 am · 3:49 pm	ECMWF
Sat 7	Overcast	53 / 64 °F	11%	10 mph NNE	6.4 ft	4:45 am · 4:15 pm	ECMWF
Sun 8	Drizzle	55 / 58 °F	8% · 0.19 in	8 mph N	5.2 ft	5:30 am · 4:40 pm	ECMWF
Mon 9	Mainly clear	44 / 63 °F	14%	11 mph WNW	5.8 ft	6:10 am · 5:05 pm	ECMWF
Tue 10	Clear sky	42 / 60 °F	18%	11 mph WNW	5.4 ft	6:48 am · 5:30 pm	ECMWF
Wed 11	Mainly clear	47 / 61 °F	13%	11 mph WNW	4.7 ft	7:25 am · 5:56 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	Clear	Clear	Clear sky	Mainly clear	Overcast	Overcast	Overcast
Temperature	51°	54°	54°	63°	67°	67°	62°	62°
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)	5 NNW	4 N	4 NE	6 E	8 ESE	6 ESE	5 E	7 NE
Humidity	69%	75%	84%	61%	62%	64%	79%	78%
UV	0	0	0	2	3	1	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Low confidence

They don't agree on rain 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	68°	70°	69°	67°	65°	71°	67°
AIFS	70°	66°	71°	69°	64°	70°	67°
GFS	70°	72°	73°	69°	72°	72°	64°
ICON	68°	68°	69°	68°	69°	72°	63°
Confidence	high	medium	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	0.41 in	0.02 in	0	0.48 in	0	0.02 in
AIFS	0	0.39 in	0.16 in	0	0.38 in	0	0.05 in
GFS	0	0.02 in	0	0	0.15 in	0.07 in	0.02 in
ICON	0	0	0	0	0.04 in	0	0.13 in
Confidence	high	low	medium	high	medium	medium	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	821	617	1434	1022	921	1230	627
AIFS	7	6	17	9	10	12	8
GFS	913	913	1931	1325	2037	1732	1423
ICON	715	49	1734	613	613	512	1223
Confidence	high	high	high	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)	0%	78%	55%	2%	82%	27%	32%
GFS (GEFS, 31 scenarios)	2%	32%	23%	11%	87%	26%	10%

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	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Normal +0.7 °F	Normal	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal −0.4 °F	Normal	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +0.9 °F	Normal	61° / 52°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.0 °F	A bit above +23%	60° / 50°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.2 °F	A bit above +33%	58° / 48°

Coming months

When	TemperatureTemp.	Rain
November	Above +2.7 °F	A bit above +35%
December	A bit above +2.5 °F	Above +58%
January	A bit above +2.5 °F	A bit above +25%
February	Above +3.4 °F	A bit above +22%
March	Above +2.7 °F	Normal

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. The long-range sea temperature isn't usable at this spot (the model's grid cell falls on land).

Iwata climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Iwata is in May and from August to October: highs of 74 °F to 87 °F, about 11 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), 33 tropical cyclones passed within 93 mi of Iwata, one or two a year; 15 of them with hurricane-force winds (74 mph or more). The most recent: Peipah, in September 2025.

51° 36°

JanJ
53° 37°

FebF
59° 43°

MarM
67° 51°

AprA
74° 59°

MayM
78° 67°

JunJ
84° 74°

JulJ
87° 76°

AugA
82° 70°

SepS
74° 60°

OctO
65° 50°

NovN
55° 40°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	51°	36°	3.00 in	5	6.1	61°	4.1 ft	–
FebruaryFeb	53°	37°	3.79 in	6	6.1	60°	4.3 ft	–
MarchMar	59°	43°	5.97 in	9	6.2	61°	4.3 ft	–
AprilApr	67°	51°	7.04 in	9	6.4	63°	4.2 ft	–
MayMay	74°	59°	7.83 in	10	6.3	67°	3.7 ft	–
JuneJun	78°	67°	10.40 in	13	4.9	71°	3.9 ft	4
JulyJul	84°	74°	9.30 in	14	5.8	76°	4.2 ft	6
AugustAug	87°	76°	6.04 in	12	7.1	80°	4.5 ft	5
SeptemberSep	82°	70°	8.06 in	13	5.3	78°	4.7 ft	11
OctoberOct	74°	60°	9.65 in	10	4.7	74°	4.9 ft	7
NovemberNov	65°	50°	5.31 in	7	4.9	70°	3.9 ft	–
DecemberDec	55°	40°	3.40 in	5	5.4	65°	4.2 ft	–

Month	Water	Waves	Cyclones
Jan	61°	4.1 ft	–
Feb	60°	4.3 ft	–
Mar	61°	4.3 ft	–
Apr	63°	4.2 ft	–
May	67°	3.7 ft	–
Jun	71°	3.9 ft	4
Jul	76°	4.2 ft	6
Aug	80°	4.5 ft	5
Sep	78°	4.7 ft	11
Oct	74°	4.9 ft	7
Nov	70°	3.9 ft	–
Dec	65°	4.2 ft	–

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

A normal year brings 79.77 in of rain on about 112 days and about 2,100 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

Now65 °Ffeels like 63 °F

Tomorrow61 / 70 °F

It's 65 °F now (feels like 63 °F). Today, 51 °F to 68 °F; tomorrow, 61 °F to 70 °F.

Chance of rain

Today 0%
Fri 30 78% 0.41 in
Sat 31 55% 0.02 in
Sun 1 2%
Mon 2 82% 0.48 in
Tue 3 27%
Wed 4 32% 0.02 in

Today the chance of rain reaches 0%. The next day with likely rain is Friday 30: 78% and 0.41 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 1.47 in; last 7 days, 3.51 in.

Humidity and dew point

Humidity60%

Dew point51 °F

Humidity is 60% now and the dew point is 51 °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

Clouds35%

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

Now3

Today's peak4moderate

Fri 30: 4 · Sat 31: 5 · Sun 1: 3

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

30.0030.20 29.88

Steady now (+0.02 inHg in 3 hours). Over the next 48 hours: −0.35 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 26

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	52 / 68 °F	0	15 mph NW
Tue 27	Light rain	64 / 78 °F	0.30 in	13 mph WNW
Mon 26	Rain	67 / 70 °F	1.78 in	11 mph ENE
Sun 25	Light rain	67 / 75 °F	0.58 in	7 mph WNW
Sat 24	Rain	65 / 72 °F	0.84 in	12 mph ENE
Fri 23	Overcast	63 / 73 °F	0	10 mph E
Thu 22	Overcast	65 / 76 °F	0	13 mph WNW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Drizzle	70 / 81 °F	0.17 in	11 mph WSW
Tue 20	Light showers	68 / 76 °F	0.67 in	6 mph WNW
Mon 19	Light drizzle	65 / 80 °F	0.02 in	6 mph NNW
Sun 18	Overcast	62 / 77 °F	0	9 mph E
Sat 17	Partly cloudy	61 / 80 °F	0	7 mph N
Fri 16	Overcast	58 / 84 °F	0	6 mph NNW
Thu 15	Light drizzle	61 / 79 °F	0.01 in	10 mph N
Wed 14	Light rain	66 / 80 °F	0.25 in	13 mph NW
Tue 13	Clear sky	64 / 82 °F	0	7 mph SSW
Mon 12	Overcast	63 / 82 °F	0	6 mph NNW
Sun 11	Clear sky	62 / 81 °F	0	5 mph W
Sat 10	Mainly clear	65 / 80 °F	0	6 mph ENE
Fri 9	Partly cloudy	62 / 81 °F	0	7 mph E
Thu 8	Mainly clear	61 / 80 °F	0	7 mph NE
Wed 7	Heavy drizzle	63 / 76 °F	0.20 in	9 mph NW
Tue 6	Mainly clear	67 / 87 °F	0	12 mph WNW
Mon 5	Light drizzle	66 / 79 °F	0.06 in	6 mph NE
Sun 4	Overcast	65 / 76 °F	0	11 mph E
Sat 3	Light drizzle	68 / 79 °F	0.00 in	8 mph E
Fri 2	Light drizzle	68 / 82 °F	0.01 in	9 mph WNW
Thu 1	Overcast	69 / 84 °F	0	10 mph WNW
Wed 30	Rain	67 / 78 °F	0.57 in	6 mph ENE
Tue 29	Rain	67 / 73 °F	1.49 in	5 mph WNW

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 IwataQuestions

What's the weather like today in Iwata?

Overcast, from 51 °F to 68 °F, with a light breeze from the east-southeast (7 mph) and a 0% chance of rain.

Will it rain tomorrow in Iwata?

On Friday 30 the chance of rain is 78% (0.41 in): rain.

How warm will it be this week?

Between a low of 51 °F and a high of 71 °F; the warmest day, Tuesday 3.

What's the UV index today?

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

Is the pressure rising or falling?

It's 30.29 inHg and steady: +0.29 inHg over the last 24 hours.

When is the best time to visit Iwata?

The best time to visit Iwata is in May and from August to October: highs of 74 °F to 87 °F, about 11 rainy days a month and 6 hours of sunshine a day.

What is the weather like in Iwata in October?

In October, Iwata normally sees highs of 74 °F and lows of 60 °F, with about 10 rainy days (9.65 in for the month) and 5 hours of sunshine a day. The sea is around 74 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Iwata?

The warmest is August, with average highs of 87 °F, and the coldest January, with lows of 36 °F. The wettest is June (10.40 in) and the driest, January.

When is typhoon season in Iwata?

Typhoon season: from July to October, peaking in September. In the last 30 years (1996–2025), 33 tropical cyclones passed within 93 mi of Iwata, 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 Iwata today

Weather near Iwata

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 6.6 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 10:09 am (local time).

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