Weather in Komatsushima

14-day forecast · updated today, Thursday, October 29, at 11:35 am (GMT+9)

Now · overcast 69 °F

Feels like: 67 °F
Low / high: 50 / 70 °F
Rain: 11%
Wind: 7 mph SE

↘ 30.25 inHg · falling

Today in Komatsushima: overcast, 50 °F to 70 °F, with a 11% chance of rain and a light breeze from the southeast (7 mph). Tomorrow, light rain, 60 °F to 70 °F and a 98% chance of rain. The warmest day of the week is Monday 2, at 71 °F.

Temperatures for the next 14 days

70° 50°
Today
70° 60°
Fri 30
71° 55°
Sat 31
65° 52°
Sun 1
71° 52°
Mon 2
67° 57°
Tue 3
63° 55°
Wed 4
71° 55°
Thu 5
69° 53°
Fri 6
60° 52°
Sat 7
65° 52°
Sun 8
59° 47°
Mon 9
62° 45°
Tue 10
65° 47°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Overcast	50 / 70 °F	11%	11 mph S	1.6 ft	8:14 am · 7:16 pm	ECMWF
Fri 30	Light rain	60 / 70 °F	98% · 0.38 in	6 mph SW	2.2 ft	9:04 am · 7:46 pm	ECMWF
Sat 31	Mainly clear	55 / 71 °F	0%	12 mph WNW	2.6 ft	10:01 am · 8:21 pm	ECMWF
Sun 1	Overcast	52 / 65 °F	1%	7 mph W	2.8 ft	11:19 am · 9:14 pm	ECMWF
Mon 2	Drizzle	52 / 71 °F	51% · 0.18 in	11 mph SW	4.3 ft	2:05 pm · 11:48 pm	ECMWF
Tue 3	Overcast	57 / 67 °F	6%	11 mph WNW	3.3 ft	2:47 pm	ECMWF
Wed 4	Overcast	55 / 63 °F	17%	7 mph WNW	3.0 ft	1:51 am · 3:12 pm	ECMWF
Thu 5	Overcast	55 / 71 °F	53%	4 mph WNW	3.0 ft	3:04 am · 3:36 pm	ECMWF
Fri 6	Partly cloudy	53 / 69 °F	16%	14 mph NW	3.6 ft	4:02 am · 4:02 pm	ECMWF
Sat 7	Overcast	52 / 60 °F	16%	12 mph NW	4.3 ft	4:51 am · 4:30 pm	ECMWF
Sun 8	Overcast	52 / 65 °F	10%	8 mph WNW	3.1 ft	5:33 am · 4:59 pm	ECMWF
Mon 9	Light drizzle	47 / 59 °F	16% · 0.05 in	10 mph NW	4.4 ft	6:12 am · 5:28 pm	ECMWF
Tue 10	Mainly clear	45 / 62 °F	20%	10 mph WNW	2.8 ft	6:48 am · 5:55 pm	ECMWF
Wed 11	Overcast	47 / 65 °F	8%	8 mph WNW	2.6 ft	7:22 am · 6:20 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	Mainly clear	Clear	Clear	Clear sky	Overcast	Partly cloudy	Overcast	Overcast
Temperature	55°	53°	50°	61°	69°	68°	63°	63°
Chance of rain	0%	0%	0%	0%	0%	0%	0%	8%
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)	2 WNW	4 W	3 WSW	4 E	7 SE	11 SSE	8 S	5 S
Humidity	83%	86%	92%	69%	56%	63%	76%	78%
UV	0	0	0	2	5	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	70°	70°	71°	65°	71°	67°	63°
AIFS	69°	68°	70°	68°	66°	67°	64°
GFS	70°	69°	70°	67°	73°	67°	66°
ICON	66°	71°	69°	65°	73°	66°	62°
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	0.38 in	0	0	0.18 in	0	0
AIFS	0.02 in	0.65 in	0.02 in	0	0.24 in	0	0.01 in
GFS	0	0.03 in	0	0	0.09 in	0	0
ICON	0	0.16 in	0	0	0	0	0.08 in
Confidence	high	medium	high	high	medium	high	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1126	619	1232	717	1133	1132	724
AIFS	9	9	13	8	10	11	7
GFS	1012	915	1523	813	1627	1123	1017
ICON	816	611	1427	511	1021	1326	816
Confidence	high	high	high	high	high	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)	11%	98%	0%	1%	51%	6%	17%
GFS (GEFS, 31 scenarios)	0%	68%	0%	0%	61%	3%	6%

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 and normal rain.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Normal +0.7 °F	A bit below −31%	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal +0.4 °F	Normal	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.4 °F	Normal	61° / 49°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.5 °F	Normal	59° / 47°
Nov 30 – Dec 6Nov 30–Dec 6	Above +2.7 °F	A bit above +41%	57° / 46°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +2.5 °F	Normal
December	A bit above +2.2 °F	Above +67%
January	A bit above +2.0 °F	A bit above +26%
February	Above +2.9 °F	A bit above +25%
March	A bit above +2.3 °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).

Komatsushima climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Komatsushima is in May and in August: highs of 73 °F to 88 °F, about 11 rainy days a month and 7 hours of sunshine a day.

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

50° 38°

JanJ
51° 38°

FebF
57° 43°

MarM
66° 51°

AprA
73° 60°

MayM
78° 67°

JunJ
85° 75°

JulJ
88° 76°

AugA
82° 71°

SepS
73° 61°

OctO
64° 51°

NovN
54° 42°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	50°	38°	1.84 in	5	5.0	59°	2.9 ft	–
FebruaryFeb	51°	38°	2.18 in	6	5.4	57°	3.0 ft	–
MarchMar	57°	43°	3.65 in	9	6.0	57°	2.8 ft	–
AprilApr	66°	51°	4.81 in	10	6.4	60°	2.7 ft	–
MayMay	73°	60°	5.78 in	10	6.1	64°	2.3 ft	–
JuneJun	78°	67°	8.70 in	14	4.5	70°	2.4 ft	4
JulyJul	85°	75°	6.82 in	13	6.1	76°	2.7 ft	11
AugustAug	88°	76°	6.46 in	12	7.7	80°	2.8 ft	6
SeptemberSep	82°	71°	10.50 in	13	5.7	79°	3.0 ft	13
OctoberOct	73°	61°	7.24 in	9	5.2	74°	3.1 ft	3
NovemberNov	64°	51°	3.38 in	7	5.0	68°	2.5 ft	–
DecemberDec	54°	42°	2.06 in	5	4.6	63°	3.0 ft	–

Month	Water	Waves	Cyclones
Jan	59°	2.9 ft	–
Feb	57°	3.0 ft	–
Mar	57°	2.8 ft	–
Apr	60°	2.7 ft	–
May	64°	2.3 ft	–
Jun	70°	2.4 ft	4
Jul	76°	2.7 ft	11
Aug	80°	2.8 ft	6
Sep	79°	3.0 ft	13
Oct	74°	3.1 ft	3
Nov	68°	2.5 ft	–
Dec	63°	3.0 ft	–

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

A normal year brings 63.41 in of rain on about 111 days and about 2,050 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

Now69 °Ffeels like 67 °F

Tomorrow60 / 70 °F

It's 69 °F now (feels like 67 °F). Today, 50 °F to 70 °F; tomorrow, 60 °F to 70 °F.

Chance of rain

Today 11%
Fri 30 98% 0.38 in
Sat 31 0%
Sun 1 1%
Mon 2 51% 0.18 in
Tue 3 6%
Wed 4 17%

Today the chance of rain reaches 11%. The next day with likely rain is Friday 30: 98% and 0.38 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 1.09 in; last 7 days, 1.95 in.

Humidity and dew point

Humidity57%

Dew point53 °F

Humidity is 57% now and the dew point is 53 °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

Clouds83%

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

Now5

Today's peak5moderate

Fri 30: 3 · 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 Anglers expect normal activity
↘ Falling · now Anglers say fish feed more before the change

30.0030.20 29.95

Falling now (−0.04 inHg in 3 hours). Over the next 48 hours: −0.19 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 32

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	Mainly clear	55 / 67 °F	0	13 mph NW
Tue 27	Heavy drizzle	62 / 77 °F	0.08 in	15 mph NW
Mon 26	Rain	68 / 70 °F	1.24 in	6 mph NW
Sun 25	Drizzle	70 / 77 °F	0.21 in	9 mph NW
Sat 24	Light rain	67 / 81 °F	0.27 in	10 mph SSE
Fri 23	Drizzle	59 / 74 °F	0.14 in	7 mph S
Thu 22	Overcast	63 / 73 °F	0	11 mph NNW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Light drizzle	67 / 91 °F	0.01 in	12 mph W
Tue 20	Drizzle	66 / 84 °F	0.13 in	5 mph S
Mon 19	Rain	70 / 79 °F	0.65 in	11 mph SSE
Sun 18	Light drizzle	58 / 74 °F	0.08 in	13 mph SSE
Sat 17	Overcast	59 / 75 °F	0	9 mph NW
Fri 16	Overcast	58 / 76 °F	0	6 mph WNW
Thu 15	Overcast	58 / 73 °F	0	8 mph NW
Wed 14	Light drizzle	63 / 77 °F	0.08 in	15 mph NW
Tue 13	Partly cloudy	61 / 81 °F	0	11 mph S
Mon 12	Partly cloudy	65 / 78 °F	0	8 mph NW
Sun 11	Partly cloudy	63 / 80 °F	0	8 mph NW
Sat 10	Overcast	60 / 79 °F	0	7 mph SSE
Fri 9	Clear sky	60 / 81 °F	0	6 mph SSE
Thu 8	Partly cloudy	57 / 75 °F	0	7 mph NW
Wed 7	Partly cloudy	60 / 73 °F	0	12 mph NW
Tue 6	Light drizzle	65 / 76 °F	0.04 in	12 mph NW
Mon 5	Light rain	64 / 70 °F	0.80 in	6 mph NW
Sun 4	Rain	64 / 68 °F	1.18 in	6 mph W
Sat 3	Overcast	62 / 75 °F	0	9 mph NNW
Fri 2	Drizzle	67 / 76 °F	0.18 in	11 mph NNW
Thu 1	Mainly clear	63 / 83 °F	0	8 mph WNW
Wed 30	Light drizzle	65 / 78 °F	0.02 in	9 mph NW
Tue 29	Light rain	65 / 74 °F	0.93 in	7 mph NW

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 KomatsushimaQuestions

What's the weather like today in Komatsushima?

Overcast, from 50 °F to 70 °F, with a light breeze from the southeast (7 mph) and a 11% chance of rain.

Will it rain tomorrow in Komatsushima?

On Friday 30 the chance of rain is 98% (0.38 in): light rain.

How warm will it be this week?

Between a low of 50 °F and a high of 71 °F; the warmest day, Monday 2.

What's the UV index today?

It reaches 5 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 30.25 inHg and falling: +0.09 inHg over the last 24 hours.

When is the best time to visit Komatsushima?

The best time to visit Komatsushima is in May and in August: highs of 73 °F to 88 °F, about 11 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Komatsushima in October?

In October, Komatsushima normally sees highs of 73 °F and lows of 61 °F, with about 9 rainy days (7.24 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 Komatsushima?

The warmest is August, with average highs of 88 °F, and the coldest January, with lows of 38 °F. The wettest is September (10.50 in) and the driest, January.

When is typhoon season in Komatsushima?

Typhoon season: from July to September, peaking in September. In the last 30 years (1996–2025), 37 tropical cyclones passed within 93 mi of Komatsushima, 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 Komatsushima today

Weather near Komatsushima

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 4.8 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 11:35 am (local time).

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