Weather in Nanum

14-day forecast · updated today, Thursday, October 29, at 7:04 pm (GMT+10)

Now · mainly clear 83 °F

Feels like: 93 °F
Low / high: 76 / 92 °F
Rain: 55% · 0.04 in
Wind: 3 mph WSW

↗ 29.91 inHg · rising UV 12 · extreme

Today in Nanum: light drizzle, 76 °F to 92 °F, with a 55% chance of rain (0.04 in) and a light air from the west-southwest (3 mph). Tomorrow, light drizzle, 75 °F to 95 °F and a 40% chance of rain. The warmest day of the week is Friday 30, at 95 °F.

Temperatures for the next 14 days

92° 76°
Today
95° 75°
Fri 30
94° 77°
Sat 31
93° 76°
Sun 1
91° 76°
Mon 2
91° 76°
Tue 3
89° 77°
Wed 4
87° 74°
Thu 5
88° 74°
Fri 6
89° 75°
Sat 7
92° 76°
Sun 8
90° 76°
Mon 9
93° 76°
Tue 10
94° 78°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Light drizzle	76 / 92 °F	55% · 0.04 in	11 mph E	0.7 ft	9:24 am · 5:56 pm	ECMWF
Fri 30	Light drizzle	75 / 95 °F	40% · 0.02 in	13 mph ESE	0.7 ft	6:32 pm	ECMWF
Sat 31	Light drizzle	77 / 94 °F	41% · 0.02 in	11 mph ESE	0.8 ft	7:15 pm	ECMWF
Sun 1	Light drizzle	76 / 93 °F	69% · 0.05 in	9 mph ESE	0.7 ft	8:04 pm	ECMWF
Mon 2	Light drizzle	76 / 91 °F	75% · 0.02 in	10 mph SE	0.9 ft	9:07 pm	ECMWF
Tue 3	Light drizzle	76 / 91 °F	61% · 0.02 in	11 mph NE	0.7 ft	3:16 pm · 10:32 pm	ECMWF
Wed 4	Light drizzle	77 / 89 °F	22% · 0.02 in	12 mph ENE	0.7 ft	3:28 pm	ECMWF
Thu 5	Partly cloudy	74 / 87 °F	24%	11 mph E	0.7 ft	12:09 am · 3:38 pm	ECMWF
Fri 6	Mainly clear	74 / 88 °F	37%	11 mph ENE	0.7 ft	1:48 am · 3:40 pm	ECMWF
Sat 7	Mainly clear	75 / 89 °F	45%	11 mph SE	1.6 ft	3:32 am · 3:42 pm	ECMWF
Sun 8	Drizzle	76 / 92 °F	50% · 0.19 in	13 mph ESE	1.1 ft	5:12 am · 3:55 pm	ECMWF
Mon 9	Light drizzle	76 / 90 °F	63% · 0.02 in	11 mph ESE	1.6 ft	6:36 am · 4:15 pm	ECMWF
Tue 10	Drizzle	76 / 93 °F	65% · 0.19 in	11 mph ESE	1.0 ft	7:57 am · 4:38 pm	ECMWF
Wed 11	Drizzle	78 / 94 °F	66% · 0.24 in	13 mph E	1.4 ft	5:04 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	Mainly clear	Light drizzle	Light drizzle	Clear sky	Partly cloudy
Temperature	78°	76°	76°	85°	92°	92°	85°	81°
Chance of rain	0%	0%	0%	0%	0%	44%	20%	10%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.01 in	0.00 in	0.00 in
Wind (mph)	8 E	8 E	8 E	10 E	10 ESE	3 NW	5 W	5 ESE
Humidity	76%	87%	88%	67%	50%	50%	73%	72%
UV	0	0	0	4	12	6	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Low confidence

They don't agree on temperature today: 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	92°	95°	94°	93°	91°	91°	89°
AIFS	93°	91°	89°	87°	86°	86°	87°
GFS	106°	104°	105°	105°	105°	103°	101°
ICON	98°	98°	99°	98°	95°	97°	98°
Confidence	low	low	low	low	low	low	low

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.04 in	0.02 in	0.02 in	0.05 in	0.02 in	0.02 in	0.02 in
AIFS	0	0	0	0.05 in	0.00 in	0.02 in	0.02 in
GFS	0	0	0.00 in	0	0.02 in	0.04 in	0.08 in
ICON	0	0	0	0	0	0	0
Confidence	high	high	high	medium	high	high	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1121	1326	1124	923	1025	1123	1224
AIFS	11	12	10	9	11	11	11
GFS	1115	1322	1221	1319	1618	1319	1615
ICON	1121	1223	1224	1223	919	1325	818
Confidence	high	high	high	high	medium	high	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)	55%	40%	41%	69%	75%	61%	22%
GFS (GEFS, 31 scenarios)	3%	0%	16%	19%	26%	26%	32%

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 a bit drier.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Normal +0.5 °F	A bit below −47%	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +0.9 °F	Normal	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.4 °F	A bit below −37%	98° / 76°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +1.4 °F	A bit below −33%	97° / 76°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.0 °F	Normal	97° / 76°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +1.6 °F	Below −55%
December	Above +2.7 °F	A bit below −39%
January	A bit above +2.5 °F	Normal
February	Above +2.7 °F	Normal
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).

Nanum climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Nanum is from June to September: highs of 84 °F to 88 °F, barely 1 rainy day a month and 8 hours of sunshine a day.

Cyclone season: from February to April and in December, peaking in March. In the last 30 years (1996–2025), 7 tropical cyclones passed within 93 mi of Nanum, about 2 every 10 years; 4 of them with hurricane-force winds (74 mph or more). The most recent: Trevor, in March 2019.

88° 74°

JanJ
87° 74°

FebF
87° 74°

MarM
87° 73°

AprA
87° 70°

MayM
84° 67°

JunJ
84° 65°

JulJ
86° 65°

AugA
88° 69°

SepS
91° 71°

OctO
93° 73°

NovN
91° 73°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	88°	74°	18.15 in	27	6.4	85°	2.5 ft	–
FebruaryFeb	87°	74°	17.69 in	26	6.5	85°	2.3 ft	1
MarchMar	87°	74°	12.86 in	24	6.8	85°	1.9 ft	4
AprilApr	87°	73°	3.28 in	11	7.1	84°	1.4 ft	1
MayMay	87°	70°	0.66 in	3	7.6	82°	2.0 ft	–
JuneJun	84°	67°	0.15 in	0	7.7	80°	2.1 ft	–
JulyJul	84°	65°	0.03 in	0	8.7	78°	2.0 ft	–
AugustAug	86°	65°	0.09 in	1	8.7	78°	1.7 ft	–
SeptemberSep	88°	69°	0.09 in	0	9.2	80°	1.5 ft	–
OctoberOct	91°	71°	0.74 in	3	8.9	82°	1.4 ft	–
NovemberNov	93°	73°	3.36 in	9	8.6	84°	1.2 ft	–
DecemberDec	91°	73°	9.94 in	20	7.6	86°	1.4 ft	1

Month	Water	Waves	Cyclones
Jan	85°	2.5 ft	–
Feb	85°	2.3 ft	1
Mar	85°	1.9 ft	4
Apr	84°	1.4 ft	1
May	82°	2.0 ft	–
Jun	80°	2.1 ft	–
Jul	78°	2.0 ft	–
Aug	78°	1.7 ft	–
Sep	80°	1.5 ft	–
Oct	82°	1.4 ft	–
Nov	84°	1.2 ft	–
Dec	86°	1.4 ft	1

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

A normal year brings 67.04 in of rain on about 124 days and about 2,850 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

Now83 °Ffeels like 93 °F

Tomorrow75 / 95 °F

It's 83 °F now (feels like 93 °F). Today, 76 °F to 92 °F; tomorrow, 75 °F to 95 °F.

Chance of rain

Today 55% 0.04 in
Fri 30 40% 0.02 in
Sat 31 41% 0.02 in
Sun 1 69% 0.05 in
Mon 2 75% 0.02 in
Tue 3 61% 0.02 in
Wed 4 22% 0.02 in

Today the chance of rain reaches 55%, with 0.04 in in total. The next day with likely rain is Friday 30: 40% and 0.02 in.

Recent rain: last 24 hours, 0.04 in; last 3 days, 0.15 in; last 7 days, 0.34 in.

Humidity and dew point

Humidity80%

Dew point76 °F

Humidity is 80% now and the dew point is 76 °F. With a dew point this high, it feels muggy.

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

Clouds43%

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

Now0

Today's peak12extreme

Fri 30: 13 · Sat 31: 13 · Sun 1: 13

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 · now Anglers say fish bite less for a while
→ Steady Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

29.8029.9030.00 30.01

Rising now (+0.06 inHg in 3 hours). Over the next 48 hours: −0.03 inHg. Rising pressure: anglers say fish bite less for a while. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 24

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	Overcast	76 / 93 °F	0	9 mph E
Tue 27	Light drizzle	76 / 90 °F	0.11 in	10 mph ESE
Mon 26	Light drizzle	75 / 91 °F	0.09 in	9 mph E
Sun 25	Light drizzle	76 / 92 °F	0.04 in	9 mph ESE
Sat 24	Light drizzle	75 / 91 °F	0.04 in	9 mph ENE
Fri 23	Light drizzle	74 / 92 °F	0.04 in	10 mph ESE
Thu 22	Light drizzle	74 / 93 °F	0.02 in	11 mph ESE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Light drizzle	75 / 93 °F	0.01 in	13 mph E
Tue 20	Light drizzle	74 / 92 °F	0.02 in	12 mph E
Mon 19	Light drizzle	75 / 92 °F	0.06 in	10 mph ESE
Sun 18	Drizzle	74 / 92 °F	0.17 in	11 mph ESE
Sat 17	Light drizzle	74 / 94 °F	0.05 in	13 mph E
Fri 16	Mainly clear	73 / 94 °F	0	12 mph E
Thu 15	Overcast	73 / 92 °F	0	11 mph ESE
Wed 14	Mainly clear	74 / 93 °F	0	11 mph E
Tue 13	Mainly clear	73 / 92 °F	0	11 mph ESE
Mon 12	Overcast	73 / 93 °F	0	12 mph ESE
Sun 11	Mainly clear	72 / 92 °F	0	10 mph E
Sat 10	Light drizzle	71 / 92 °F	0.02 in	10 mph E
Fri 9	Light drizzle	70 / 92 °F	0.01 in	10 mph E
Thu 8	Overcast	70 / 91 °F	0	11 mph ENE
Wed 7	Overcast	70 / 89 °F	0	11 mph ESE
Tue 6	Overcast	69 / 90 °F	0	11 mph E
Mon 5	Mainly clear	69 / 89 °F	0	9 mph E
Sun 4	Overcast	70 / 89 °F	0	11 mph ESE
Sat 3	Light drizzle	72 / 86 °F	0.04 in	14 mph E
Fri 2	Partly cloudy	72 / 89 °F	0	16 mph ESE
Thu 1	Overcast	72 / 89 °F	0	15 mph E
Wed 30	Drizzle	74 / 87 °F	0.11 in	15 mph E
Tue 29	Drizzle	73 / 89 °F	0.11 in	15 mph ESE

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 NanumQuestions

What's the weather like today in Nanum?

Light drizzle, from 76 °F to 92 °F, with a light air from the west-southwest (3 mph) and a 55% chance of rain.

Will it rain tomorrow in Nanum?

On Friday 30 the chance of rain is 40% (0.02 in): light drizzle.

How warm will it be this week?

Between a low of 75 °F and a high of 95 °F; the warmest day, Friday 30.

What's the UV index today?

It reaches 12 (extreme). Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Is the pressure rising or falling?

It's 29.91 inHg and rising: +0.01 inHg over the last 24 hours.

When is the best time to visit Nanum?

The best time to visit Nanum is from June to September: highs of 84 °F to 88 °F, barely 1 rainy day a month and 8 hours of sunshine a day.

What is the weather like in Nanum in October?

In October, Nanum normally sees highs of 91 °F and lows of 71 °F, with about 3 rainy days (0.74 in for the month) and 9 hours of sunshine a day. The sea is around 82 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Nanum?

The warmest is November, with average highs of 93 °F, and the coldest August, with lows of 65 °F. The wettest is January (18.15 in) and the driest, July.

When is cyclone season in Nanum?

Cyclone season: from February to April and in December, peaking in March. In the last 30 years (1996–2025), 7 tropical cyclones passed within 93 mi of Nanum, about 2 every 10 years; 4 of them with hurricane-force winds (74 mph or more). The most recent: Trevor, in March 2019.

More about Nanum today

Weather near Nanum

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 13 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 7:04 pm (local time).

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