Weather in Ganghwa-gun

14-day forecast · updated today, Thursday, October 29, at 6:11 pm (GMT+9)

Now · drizzle 49 °F

Feels like: 46 °F
Low / high: 38 / 51 °F
Rain: 100% · 0.18 in
Wind: 5 mph ESE

→ 30.04 inHg · steady

Today in Ganghwa-gun: drizzle, 38 °F to 51 °F, with a 100% chance of rain (0.18 in) and a light breeze from the east-southeast (5 mph). Tomorrow, light drizzle, 46 °F to 65 °F and a 47% chance of rain. The warmest day of the week is Friday 30, at 65 °F.

Temperatures for the next 14 days

51° 38°
Today
65° 46°
Fri 30
54° 41°
Sat 31
52° 41°
Sun 1
59° 41°
Mon 2
60° 36°
Tue 3
64° 43°
Wed 4
59° 46°
Thu 5
49° 35°
Fri 6
51° 34°
Sat 7
47° 31°
Sun 8
46° 33°
Mon 9
46° 29°
Tue 10
50° 29°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Drizzle	38 / 51 °F	100% · 0.18 in	9 mph SE	2.1 ft	7:55 am · 8:28 pm	ECMWF
Fri 30	Light drizzle	46 / 65 °F	47% · 0.01 in	13 mph SW	1.3 ft	8:37 am · 9:13 pm	ECMWF
Sat 31	Light drizzle	41 / 54 °F	2% · 0.00 in	10 mph NW	1.2 ft	9:22 am · 10:04 pm	ECMWF
Sun 1	Drizzle	41 / 52 °F	55% · 0.06 in	7 mph SE	0.9 ft	10:14 am · 11:03 pm	ECMWF
Mon 2	Drizzle	41 / 59 °F	53% · 0.07 in	13 mph NW	1.1 ft	11:20 am	ECMWF
Tue 3	Overcast	36 / 60 °F	6%	8 mph SW	0.7 ft	12:15 am · 12:45 pm	ECMWF
Wed 4	Overcast	43 / 64 °F	4%	5 mph E	0.6 ft	1:37 am · 2:17 pm	ECMWF
Thu 5	Drizzle	46 / 59 °F	29% · 0.33 in	14 mph WNW	1.8 ft	2:54 am · 3:33 pm	ECMWF
Fri 6	Clear sky	35 / 49 °F	23%	14 mph NW	1.8 ft	3:56 am · 4:30 pm	ECMWF
Sat 7	Partly cloudy	34 / 51 °F	6%	10 mph NW	0.7 ft	4:46 am · 5:17 pm	ECMWF
Sun 8	Clear sky	31 / 47 °F	16%	10 mph NNW	—	5:28 am · 5:56 pm	ECMWF
Mon 9	Light drizzle	33 / 46 °F	11% · 0.09 in	11 mph ENE	—	6:05 am · 6:33 pm	ECMWF
Tue 10	Clear sky	29 / 46 °F	11%	11 mph NW	—	6:39 am · 7:07 pm	ECMWF
Wed 11	Overcast	29 / 50 °F	6%	6 mph WNW	—	7:13 am · 7:41 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	Partly cloudy	Overcast	Overcast	Overcast	Light drizzle	Light drizzle	Drizzle	Drizzle
Temperature	42°	38°	42°	44°	49°	51°	49°	49°
Chance of rain	0%	0%	0%	22%	43%	92%	100%	88%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.03 in	0.02 in
Wind (mph)	1 ESE	4 SE	8 SSE	8 SE	9 SE	7 SSE	5 ESE	9 SE
Humidity	79%	84%	77%	72%	62%	72%	93%	93%
UV	0	0	0	0	1	0	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	51°	65°	54°	52°	59°	60°	64°
AIFS	52°	65°	57°	52°	58°	62°	62°
GFS	53°	64°	56°	47°	59°	60°	61°
ICON	55°	65°	56°	50°	57°	59°	62°
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.18 in	0.01 in	0.00 in	0.06 in	0.07 in	0	0
AIFS	0.20 in	0.02 in	0.02 in	0.15 in	0.02 in	0.02 in	0
GFS	0.22 in	0.02 in	0	0.07 in	0	0	0
ICON	0.04 in	0	0	0.10 in	0.00 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	919	1325	1023	716	1326	828	521
AIFS	10	11	10	7	9	6	6
GFS	1823	1521	1827	911	1721	1314	54
ICON	917	1019	1122	613	1019	511	37
Confidence	medium	high	medium	high	medium	medium	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)	100%	47%	2%	55%	53%	6%	4%
GFS (GEFS, 31 scenarios)	94%	26%	0%	65%	48%	6%	3%

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	Below −4.0 °F	Below −53%	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal −0.4 °F	A bit below −29%	—
Nov 16 – Nov 22Nov 16–Nov 22	Normal +0.7 °F	A bit above +33%	51° / 37°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.0 °F	Above +60%	48° / 35°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +1.8 °F	Normal	45° / 32°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +2.3 °F	A bit above +30%
December	A bit above +1.3 °F	A bit above +48%
January	A bit above +1.6 °F	Normal
February	A bit above +2.2 °F	Normal
March	A bit above +1.6 °F	A bit above +21%

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).

Ganghwa-gun climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Ganghwa-gun is from May to June and in September: highs of 71 °F to 78 °F, about 7 rainy days a month and 6 hours of sunshine a day.

Typhoon season: from August to September, peaking in August. In the last 30 years (1996–2025), 6 tropical cyclones passed within 93 mi of Ganghwa-gun, about 2 every 10 years; 4 of them with hurricane-force winds (74 mph or more). The most recent: Bavi, in August 2020.

34° 18°

JanJ
39° 22°

FebF
49° 32°

MarM
62° 43°

AprA
71° 53°

MayM
78° 63°

JunJ
81° 70°

JulJ
83° 71°

AugA
77° 61°

SepS
66° 47°

OctO
51° 34°

NovN
37° 21°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	34°	18°	0.51 in	2	5.4	41°	1.2 ft	–
FebruaryFeb	39°	22°	0.74 in	2	6.0	38°	1.1 ft	–
MarchMar	49°	32°	1.31 in	3	6.7	41°	1.1 ft	–
AprilApr	62°	43°	2.29 in	5	6.7	47°	1.0 ft	–
MayMay	71°	53°	3.53 in	6	6.8	55°	0.9 ft	–
JuneJun	78°	63°	4.55 in	8	6.1	63°	0.7 ft	–
JulyJul	81°	70°	13.19 in	15	3.5	70°	0.7 ft	1
AugustAug	83°	71°	10.46 in	13	4.8	76°	0.8 ft	3
SeptemberSep	77°	61°	4.98 in	8	5.8	74°	0.8 ft	2
OctoberOct	66°	47°	1.69 in	4	6.5	67°	1.0 ft	–
NovemberNov	51°	34°	1.72 in	5	5.2	57°	1.2 ft	–
DecemberDec	37°	21°	0.72 in	2	4.9	48°	1.3 ft	–

Month	Water	Waves	Cyclones
Jan	41°	1.2 ft	–
Feb	38°	1.1 ft	–
Mar	41°	1.1 ft	–
Apr	47°	1.0 ft	–
May	55°	0.9 ft	–
Jun	63°	0.7 ft	–
Jul	70°	0.7 ft	1
Aug	76°	0.8 ft	3
Sep	74°	0.8 ft	2
Oct	67°	1.0 ft	–
Nov	57°	1.2 ft	–
Dec	48°	1.3 ft	–

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

A normal year brings 45.70 in of rain on about 73 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

Now49 °Ffeels like 46 °F

Tomorrow46 / 65 °F

It's 49 °F now (feels like 46 °F). Today, 38 °F to 51 °F; tomorrow, 46 °F to 65 °F.

Chance of rain

Today 100% 0.18 in
Fri 30 47% 0.01 in
Sat 31 2% 0.00 in
Sun 1 55% 0.06 in
Mon 2 53% 0.07 in
Tue 3 6%
Wed 4 4%

Today the chance of rain reaches 100%, with 0.18 in in total. The next day with likely rain is Friday 30: 47% and 0.01 in.

Recent rain: last 24 hours, 0.11 in; last 3 days, 0.11 in; last 7 days, 0.12 in.

Humidity and dew point

Humidity93%

Dew point47 °F

Humidity is 93% now and the dew point is 47 °F. The temperature is very close to the dew point: fog may form.

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

Visibility and fog

Now5.2 mimoderate

Clouds75%

Visibility is moderate now (5.2 mi). No fog expected today.

UV index

Now0

Today's peak1low

Fri 30: 3 · Sat 31: 3 · Sun 1: 1

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 30.26

Steady now (−0.01 inHg in 3 hours). Over the next 48 hours: +0.17 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityModerate · 45

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	37 / 54 °F	0	9 mph NW
Tue 27	Clear sky	45 / 60 °F	0	15 mph NW
Mon 26	Overcast	58 / 68 °F	0	9 mph NNE
Sun 25	Overcast	48 / 75 °F	0	9 mph NE
Sat 24	Light drizzle	54 / 65 °F	0.01 in	4 mph NE
Fri 23	Overcast	38 / 68 °F	0	6 mph NE
Thu 22	Mainly clear	40 / 57 °F	0	5 mph NNW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Light drizzle	46 / 60 °F	0.03 in	17 mph WNW
Tue 20	Light drizzle	50 / 70 °F	0.01 in	6 mph NW
Mon 19	Overcast	50 / 63 °F	0	8 mph NW
Sun 18	Heavy rain	59 / 69 °F	2.03 in	21 mph S
Sat 17	Overcast	54 / 77 °F	0	14 mph ESE
Fri 16	Drizzle	59 / 73 °F	0.21 in	7 mph SSW
Thu 15	Drizzle	53 / 68 °F	0.25 in	13 mph SSW
Wed 14	Mainly clear	51 / 66 °F	0	12 mph WNW
Tue 13	Rain	59 / 70 °F	0.74 in	12 mph WNW
Mon 12	Light drizzle	63 / 80 °F	0.10 in	6 mph ENE
Sun 11	Overcast	55 / 80 °F	0	5 mph N
Sat 10	Overcast	50 / 77 °F	0	4 mph N
Fri 9	Overcast	51 / 75 °F	0	5 mph NW
Thu 8	Clear sky	46 / 74 °F	0	4 mph NW
Wed 7	Clear sky	48 / 72 °F	0	7 mph WNW
Tue 6	Clear sky	49 / 70 °F	0	7 mph WNW
Mon 5	Light drizzle	55 / 67 °F	0.04 in	11 mph WNW
Sun 4	Drizzle	53 / 74 °F	0.10 in	10 mph SSW
Sat 3	Overcast	47 / 72 °F	0	6 mph E
Fri 2	Clear sky	49 / 69 °F	0	10 mph NNW
Thu 1	Overcast	55 / 70 °F	0	11 mph NW
Wed 30	Light drizzle	55 / 77 °F	0.06 in	12 mph WSW
Tue 29	Partly cloudy	55 / 77 °F	0	4 mph NNW

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 Ganghwa-gunQuestions

What's the weather like today in Ganghwa-gun?

Drizzle, from 38 °F to 51 °F, with a light breeze from the east-southeast (5 mph) and a 100% chance of rain.

Will it rain tomorrow in Ganghwa-gun?

On Friday 30 the chance of rain is 47% (0.01 in): light drizzle.

How warm will it be this week?

Between a low of 36 °F and a high of 65 °F; the warmest day, Friday 30.

What's the UV index today?

It reaches 1 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.04 inHg and steady: −0.25 inHg over the last 24 hours.

When is the best time to visit Ganghwa-gun?

The best time to visit Ganghwa-gun is from May to June and in September: highs of 71 °F to 78 °F, about 7 rainy days a month and 6 hours of sunshine a day.

What is the weather like in Ganghwa-gun in October?

In October, Ganghwa-gun normally sees highs of 66 °F and lows of 47 °F, with about 4 rainy days (1.69 in for the month) and 6 hours of sunshine a day. The sea is around 67 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Ganghwa-gun?

The warmest is August, with average highs of 83 °F, and the coldest January, with lows of 18 °F. The wettest is July (13.19 in) and the driest, January.

When is typhoon season in Ganghwa-gun?

Typhoon season: from August to September, peaking in August. In the last 30 years (1996–2025), 6 tropical cyclones passed within 93 mi of Ganghwa-gun, about 2 every 10 years; 4 of them with hurricane-force winds (74 mph or more). The most recent: Bavi, in August 2020.

More about Ganghwa-gun today

Weather near Ganghwa-gun

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 0.8 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 6:11 pm (local time).

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