Weather in James Island

14-day forecast · updated today, Thursday, October 29, at 2:50 am (EDT)

Now · mainly clear 64 °F

Feels like: 65 °F
Low / high: 63 / 74 °F
Rain: 3%
Wind: 7 mph NNE

↘ 30.15 inHg · falling

Today in James Island: overcast, 63 °F to 74 °F, with a 3% chance of rain and a light breeze from the north-northeast (7 mph). Tomorrow, overcast, 62 °F to 76 °F and a 0% chance of rain. The warmest day of the week is Friday 30, at 76 °F. Next likely rain: Sunday 1 (26%).

Temperatures for the next 14 days

74° 63°
Today
76° 62°
Fri 30
73° 64°
Sat 31
73° 63°
Sun 1
73° 64°
Mon 2
75° 64°
Tue 3
76° 64°
Wed 4
74° 64°
Thu 5
72° 59°
Fri 6
70° 56°
Sat 7
69° 54°
Sun 8
66° 53°
Mon 9
67° 51°
Tue 10
70° 56°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Overcast	63 / 74 °F	3%	12 mph NE	4.5 ft	11:49 am	HRRR + NBM
Fri 30	Overcast	62 / 76 °F	0%	11 mph NE	3.1 ft	12:03 am · 12:50 pm	NBM
Sat 31	Overcast	64 / 73 °F	1%	19 mph NE	4.1 ft	1:06 am · 1:56 pm	NBM
Sun 1	Light drizzle	63 / 73 °F	26% · 0.28 in	18 mph NE	3.9 ft	1:13 am · 2:01 pm	NBM
Mon 2	Light drizzle	64 / 73 °F	29% · 0.59 in	18 mph NE	4.7 ft	2:21 am · 3:03 pm	NBM
Tue 3	Mainly clear	64 / 75 °F	6%	16 mph NE	4.4 ft	3:25 am · 4:02 pm	NBM
Wed 4	Partly cloudy	64 / 76 °F	19% · 0.10 in	13 mph ENE	4.1 ft	4:27 am · 4:57 pm	NBM
Thu 5	Light drizzle	64 / 74 °F	24% · 0.16 in	11 mph SE	3.5 ft	5:23 am · 5:48 pm	NBM
Fri 6	Light drizzle	59 / 72 °F	15%	9 mph WSW	2.9 ft	6:13 am · 6:34 pm	NBM
Sat 7	Light drizzle	56 / 70 °F	7% · 0.02 in	9 mph NNW	3.0 ft	6:58 am · 7:16 pm	NBM
Sun 8	Overcast	54 / 69 °F	9% · 0.01 in	10 mph NNE	2.3 ft	7:39 am · 7:57 pm	NBM + ECMWF
Mon 9	Mainly clear	53 / 66 °F	8%	11 mph N	2.5 ft	8:19 am · 8:37 pm	ECMWF
Tue 10	Overcast	51 / 67 °F	8%	8 mph NNE	2.0 ft	8:56 am · 9:17 pm	ECMWF
Wed 11	Overcast	56 / 70 °F	14%	6 mph NNW	1.6 ft	9:34 am · 9:57 pm	ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 9:00 pm; then NBM until Sunday 8 8:00 pm; then ECMWF until Thursday 12 10:00 am; then GFS.

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	Mainly clear	Clear	Mainly clear	Overcast	Partly cloudy	Clear sky	Clear
Temperature	65°	64°	64°	65°	71°	74°	72°	67°
Chance of rain	0%	1%	3%	1%	0%	0%	1%	1%
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)	8 NNE	7 NNE	7 NNE	10 NNE	12 NNE	12 NE	9 NE	7 NE
Humidity	87%	87%	87%	89%	78%	73%	77%	92%
UV	0	0	0	1	3	3	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	NBM

Do the models agree?

High confidence

The models agree for the next few days: the forecast is fairly solid.

What 6 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	78°	78°	73°	73°	75°	78°	79°
AIFS	79°	79°	75°	72°	73°	76°	73°
GFS	76°	75°	72°	71°	73°	74°	74°
ICON	77°	78°	72°	72°	72°	74°	77°
HRRR	74°	78°	—	—	—	—	—
NBM	76°	76°	73°	73°	73°	75°	76°
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	0	0	0.00 in	0.01 in	0	0
AIFS	0	0	0	0.02 in	0.02 in	0.06 in	1.22 in
GFS	0.02 in	0	0	0	0	0	0.24 in
ICON	0	0	0	0	0	0.01 in	0.22 in
HRRR	0	0	—	—	—	—	—
NBM	0	0	0	0.28 in	0.59 in	0	0.08 in
Confidence	high	high	high	high	high	high	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1122	818	1429	1425	1329	1333	820
AIFS	12	9	15	15	15	16	14
GFS	1327	1117	1828	1828	1624	1523	1326
ICON	924	819	1329	1432	1329	1431	1125
HRRR	1226	1117	—	—	—	—	—
NBM	1424	1117	1928	1827	1827	1624	1319
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)	0%	0%	4%	10%	20%	10%	21%
GFS (GEFS, 31 scenarios)	6%	0%	0%	18%	30%	16%	29%
NBM (NOAA)	3%	0%	1%	26%	29%	6%	19%
Thunderstorm (NBM)	0%	0%	1%	5%	4%	5%	4%

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 wetter.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Well above +5.9 °F	Above +89%	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit below −0.9 °F	A bit above +36%	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +0.9 °F	Normal	67° / 54°
Nov 23 – Nov 29Nov 23–Nov 29	Normal +0.7 °F	Above +90%	65° / 53°
Nov 30 – Dec 6Nov 30–Dec 6	Normal 0.0 °F	Above +98%	62° / 51°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +1.1 °F	Above +70%
December	Normal +0.2 °F	Above +55%
January	Normal −0.5 °F	Above +73%
February	Normal −0.7 °F	Above +89%
March	Normal −0.4 °F	Above +57%

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).

James Island climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit James Island is from April to May and in October: highs of 75 °F to 82 °F, about 8 rainy days a month and 8 hours of sunshine a day.

Hurricane season: from May to September. In the last 30 years (1996–2025), 31 tropical cyclones passed within 93 mi of James Island, one or two a year; 9 of them with hurricane-force winds (74 mph or more). The most recent: Chantal, in July 2025.

58° 40°

JanJ
62° 42°

FebF
68° 48°

MarM
75° 55°

AprA
82° 64°

MayM
87° 71°

JunJ
89° 74°

JulJ
88° 73°

AugA
84° 69°

SepS
77° 59°

OctO
69° 49°

NovN
62° 43°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	58°	40°	3.23 in	8	5.0	61°	3.3 ft	–
FebruaryFeb	62°	42°	2.97 in	7	5.3	60°	3.3 ft	–
MarchMar	68°	48°	3.57 in	8	6.9	61°	3.2 ft	–
AprilApr	75°	55°	3.24 in	7	8.1	66°	3.2 ft	–
MayMay	82°	64°	3.17 in	9	9.1	73°	2.9 ft	4
JuneJun	87°	71°	5.93 in	14	8.1	80°	2.6 ft	4
JulyJul	89°	74°	6.44 in	17	8.5	83°	2.7 ft	5
AugustAug	88°	73°	7.83 in	17	7.5	83°	2.7 ft	7
SeptemberSep	84°	69°	5.94 in	11	6.3	81°	3.3 ft	7
OctoberOct	77°	59°	3.44 in	7	6.1	75°	3.4 ft	3
NovemberNov	69°	49°	2.52 in	6	5.7	68°	3.6 ft	1
DecemberDec	62°	43°	3.43 in	8	4.7	64°	3.3 ft	–

Month	Water	Waves	Cyclones
Jan	61°	3.3 ft	–
Feb	60°	3.3 ft	–
Mar	61°	3.2 ft	–
Apr	66°	3.2 ft	–
May	73°	2.9 ft	4
Jun	80°	2.6 ft	4
Jul	83°	2.7 ft	5
Aug	83°	2.7 ft	7
Sep	81°	3.3 ft	7
Oct	75°	3.4 ft	3
Nov	68°	3.6 ft	1
Dec	64°	3.3 ft	–

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

A normal year brings 51.69 in of rain on about 120 days and about 2,450 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

Now64 °Ffeels like 65 °F

Tomorrow62 / 76 °F

It's 64 °F now (feels like 65 °F). Today, 63 °F to 74 °F; tomorrow, 62 °F to 76 °F.

Chance of rain

Today 3%
Fri 30 0%
Sat 31 1%
Sun 1 26% 0.28 in
Mon 2 29% 0.59 in
Tue 3 6%
Wed 4 19% 0.10 in

Today the chance of rain reaches 3%. The next day with likely rain is Sunday 1: 26% and 0.28 in.

No rain in the last 7 days.

Humidity and dew point

Humidity87%

Dew point60 °F

Humidity is 87% now and the dew point is 60 °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

Now9.2 migood

Clouds30%

Visibility is good now (9.2 mi). No fog expected today.

UV index

Now0

Today's peak4moderate

Fri 30: 5 · 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

30.1030.2030.30 30.21

Falling now (−0.04 inHg in 3 hours). Over the next 48 hours: +0.03 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 49

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	Max wind
Wed 28	Mainly clear	55 / 78 °F	12 mph NE
Tue 27	Overcast	53 / 76 °F	9 mph NNE
Mon 26	Clear sky	55 / 75 °F	11 mph NNE
Sun 25	Partly cloudy	57 / 74 °F	15 mph NNE
Sat 24	Clear sky	55 / 74 °F	13 mph NNE
Fri 23	Mainly clear	50 / 71 °F	10 mph NNE
Thu 22	Clear sky	49 / 73 °F	7 mph N

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Partly cloudy	52 / 73 °F	0	9 mph N
Tue 20	Mainly clear	50 / 74 °F	0	9 mph N
Mon 19	Clear sky	49 / 68 °F	0	12 mph N
Sun 18	Clear sky	49 / 67 °F	0	14 mph NNE
Sat 17	Light drizzle	56 / 76 °F	0.04 in	16 mph NNW
Fri 16	Mainly clear	68 / 84 °F	0	10 mph SW
Thu 15	Clear sky	68 / 86 °F	0	7 mph SW
Wed 14	Overcast	65 / 86 °F	0	7 mph SW
Tue 13	Clear sky	65 / 85 °F	0	5 mph NNW
Mon 12	Clear sky	63 / 84 °F	0	9 mph WNW
Sun 11	Thunderstorm	69 / 81 °F	0.46 in	15 mph SW
Sat 10	Thunderstorm	72 / 82 °F	1.28 in	14 mph ESE
Fri 9	Light drizzle	68 / 76 °F	0.02 in	14 mph NE
Thu 8	Overcast	64 / 80 °F	0	6 mph NE
Wed 7	Overcast	65 / 80 °F	0	11 mph NE
Tue 6	Overcast	65 / 76 °F	0	13 mph NE
Mon 5	Showers	67 / 73 °F	1.54 in	9 mph NNE
Sun 4	Showers	73 / 81 °F	1.46 in	9 mph WSW
Sat 3	Light rain	74 / 78 °F	0.54 in	9 mph SSW
Fri 2	Light drizzle	73 / 87 °F	0.06 in	7 mph SSE
Thu 1	Light drizzle	67 / 85 °F	0.05 in	6 mph ENE
Wed 30	Clear sky	70 / 84 °F	0	7 mph ENE
Tue 29	Partly cloudy	63 / 84 °F	0	8 mph ENE

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 James IslandQuestions

What's the weather like today in James Island?

Overcast, from 63 °F to 74 °F, with a light breeze from the north-northeast (7 mph) and a 3% chance of rain.

Will it rain tomorrow in James Island?

On Friday 30 the chance of rain is 0% (0.00 in): overcast.

How warm will it be this week?

Between a low of 62 °F and a high of 76 °F; the warmest day, Friday 30.

What's the UV index today?

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

Is the pressure rising or falling?

It's 30.15 inHg and falling: −0.06 inHg over the last 24 hours.

When is the best time to visit James Island?

The best time to visit James Island is from April to May and in October: highs of 75 °F to 82 °F, about 8 rainy days a month and 8 hours of sunshine a day.

What is the weather like in James Island in October?

In October, James Island normally sees highs of 77 °F and lows of 59 °F, with about 7 rainy days (3.44 in for the month) and 6 hours of sunshine a day. The sea is around 75 °F. These are 1991–2020 averages.

What are the warmest and wettest months in James Island?

The warmest is July, with average highs of 89 °F, and the coldest January, with lows of 40 °F. The wettest is August (7.83 in) and the driest, November.

When is hurricane season in James Island?

Hurricane season: from May to September. In the last 30 years (1996–2025), 31 tropical cyclones passed within 93 mi of James Island, one or two a year; 9 of them with hurricane-force winds (74 mph or more). The most recent: Chantal, in July 2025.

More about James Island today

Weather near James Island

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 2.8 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 2:50 am (local time).

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