Weather in Saint Lucia

14-day forecast · updated today, Thursday, October 29, at 1:04 am (GMT+2)

Now · overcast 63 °F

Feels like: 65 °F
Low / high: 61 / 76 °F
Rain: 18%
Wind: 2 mph SW

→ 30.14 inHg · steady UV 9 · very high

Today in Saint Lucia: overcast, 61 °F to 76 °F, with a 18% chance of rain and a light air from the southwest (2 mph). Tomorrow, mainly clear, 57 °F to 79 °F and a 0% chance of rain. The warmest day of the week is Sunday 1, at 87 °F. Next likely rain: Tuesday 3 (27%).

Temperatures for the next 14 days

76° 61°
Today
79° 57°
Fri 30
83° 63°
Sat 31
87° 67°
Sun 1
80° 71°
Mon 2
76° 69°
Tue 3
83° 72°
Wed 4
87° 73°
Thu 5
78° 64°
Fri 6
79° 64°
Sat 7
86° 66°
Sun 8
90° 75°
Mon 9
91° 67°
Tue 10
74° 67°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Overcast	61 / 76 °F	18%	8 mph ESE	5.9 ft	5:11 am · 5:30 pm	ECMWF
Fri 30	Mainly clear	57 / 79 °F	0%	12 mph NNE	5.2 ft	5:51 am · 6:10 pm	ECMWF
Sat 31	Partly cloudy	63 / 83 °F	0%	14 mph NNE	5.5 ft	6:38 am · 6:58 pm	ECMWF
Sun 1	Light drizzle	67 / 87 °F	29% · 0.02 in	15 mph NNE	5.2 ft	7:46 am · 8:14 pm	ECMWF
Mon 2	Light drizzle	71 / 80 °F	35% · 0.04 in	10 mph SSW	4.5 ft	9:45 am · 10:28 pm	ECMWF
Tue 3	Light drizzle	69 / 76 °F	27% · 0.07 in	7 mph S	4.1 ft	11:42 am	ECMWF
Wed 4	Light drizzle	72 / 83 °F	52% · 0.02 in	11 mph NE	4.2 ft	12:09 am · 12:48 pm	ECMWF
Thu 5	Overcast	73 / 87 °F	22%	13 mph NNE	4.4 ft	1:07 am · 1:33 pm	ECMWF
Fri 6	Heavy drizzle	64 / 78 °F	26% · 0.33 in	15 mph SW	5.6 ft	1:49 am · 2:09 pm	ECMWF
Sat 7	Drizzle	64 / 79 °F	44% · 0.07 in	9 mph S	6.0 ft	2:25 am · 2:42 pm	ECMWF
Sun 8	Overcast	66 / 86 °F	51%	15 mph NNE	6.2 ft	2:58 am · 3:12 pm	ECMWF
Mon 9	Overcast	75 / 90 °F	49%	15 mph NNE	7.2 ft	3:28 am · 3:40 pm	ECMWF
Tue 10	Thunderstorm with hail	67 / 91 °F	35% · 0.70 in	18 mph N	8.4 ft	3:56 am · 4:07 pm	ECMWF
Wed 11	Light drizzle	67 / 74 °F	27% · 0.13 in	16 mph SSW	11 ft	4:24 am · 4:34 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	Overcast	Partly cloudy	Partly cloudy	Partly cloudy	Clear sky	Mainly clear	Clear
Temperature	63°	62°	64°	73°	76°	74°	68°	62°
Chance of rain	0%	1%	2%	9%	14%	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)	1 SW	2 WSW	2 WSW	3 SSE	7 ESE	8 ESE	6 E	3 NE
Humidity	85%	90%	84%	60%	53%	53%	62%	82%
UV	0	0	0	6	9	4	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 on Sunday 1: 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	76°	79°	83°	87°	80°	76°	83°
AIFS	77°	81°	84°	86°	86°	75°	73°
GFS	77°	78°	80°	88°	78°	72°	77°
ICON	77°	80°	83°	85°	79°	78°	76°
Confidence	high	high	high	high	medium	medium	medium

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0	0	0	0.02 in	0.04 in	0.07 in	0.02 in
AIFS	0	0	0	0.07 in	0.24 in	0.32 in	0.40 in
GFS	0	0	0	0.08 in	0.12 in	0.11 in	0.15 in
ICON	0	0	0	0	0.39 in	0.08 in	0.15 in
Confidence	high	high	high	medium	medium	medium	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	820	1226	1430	1532	1019	722	1124
AIFS	8	14	16	15	12	12	9
GFS	913	1120	1325	1528	821	720	1121
ICON	717	1227	1635	1635	918	514	410
Confidence	high	high	high	high	high	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)	18%	0%	0%	29%	35%	27%	52%
GFS (GEFS, 31 scenarios)	3%	0%	6%	43%	87%	59%	29%

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	Above +2.7 °F	Normal	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +0.9 °F	Normal	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.1 °F	Normal	80° / 69°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +1.1 °F	Normal	80° / 69°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +0.9 °F	Normal	80° / 70°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +2.0 °F	Normal
December	A bit above +2.2 °F	A bit below −20%
January	A bit above +2.3 °F	A bit below −26%
February	A bit above +2.0 °F	A bit below −31%
March	A bit above +2.3 °F	A bit below −23%

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).

Saint Lucia climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Saint Lucia is from May to September: highs of 74 °F to 78 °F, about 4 rainy days a month and 7 hours of sunshine a day.

Tropical cyclones rarely pass near Saint Lucia: one within 93 mi in the last 30 years (1996–2025), Issa, in April 2022.

85° 71°

JanJ
85° 71°

FebF
84° 69°

MarM
81° 65°

AprA
78° 61°

MayM
75° 57°

JunJ
74° 56°

JulJ
76° 58°

AugA
77° 61°

SepS
77° 63°

OctO
80° 66°

NovN
83° 69°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	85°	71°	5.60 in	13	6.7	80°	5.7 ft
FebruaryFeb	85°	71°	5.34 in	11	6.9	81°	5.6 ft
MarchMar	84°	69°	5.00 in	11	6.6	81°	5.6 ft
AprilApr	81°	65°	4.06 in	8	6.3	79°	6.0 ft
MayMay	78°	61°	3.35 in	5	7.1	77°	5.5 ft
JuneJun	75°	57°	2.14 in	3	7.0	75°	5.9 ft
JulyJul	74°	56°	2.59 in	3	7.0	73°	6.2 ft
AugustAug	76°	58°	1.79 in	3	7.4	72°	6.3 ft
SeptemberSep	77°	61°	2.41 in	5	7.0	73°	6.2 ft
OctoberOct	77°	63°	3.72 in	10	6.2	74°	6.4 ft
NovemberNov	80°	66°	4.71 in	13	6.3	76°	6.1 ft
DecemberDec	83°	69°	3.75 in	13	7.0	78°	5.5 ft

Month	Water	Waves
Jan	80°	5.7 ft
Feb	81°	5.6 ft
Mar	81°	5.6 ft
Apr	79°	6.0 ft
May	77°	5.5 ft
Jun	75°	5.9 ft
Jul	73°	6.2 ft
Aug	72°	6.3 ft
Sep	73°	6.2 ft
Oct	74°	6.4 ft
Nov	76°	6.1 ft
Dec	78°	5.5 ft

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

A normal year brings 44.46 in of rain on about 98 days and about 2,500 hours of sunshine.

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

Now63 °Ffeels like 65 °F

Tomorrow57 / 79 °F

It's 63 °F now (feels like 65 °F). Today, 61 °F to 76 °F; tomorrow, 57 °F to 79 °F.

Chance of rain

Today 18%
Fri 30 0%
Sat 31 0%
Sun 1 29% 0.02 in
Mon 2 35% 0.04 in
Tue 3 27% 0.07 in
Wed 4 52% 0.02 in

Today the chance of rain reaches 18%. The next day with likely rain is Tuesday 3: 27% and 0.07 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 1.26 in; last 7 days, 1.37 in.

Humidity and dew point

Humidity87%

Dew point59 °F

Humidity is 87% now and the dew point is 59 °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

Clouds100%

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 peak9very high

Fri 30: 11 · Sat 31: 9 · Sun 1: 11

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

30.1030.20 30.06

Steady now (−0.00 inHg in 3 hours). Over the next 48 hours: −0.04 inHg. Steady pressure: anglers expect normal activity. 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	Light drizzle	63 / 76 °F	0.01 in	9 mph S
Tue 27	Showers	65 / 75 °F	1.12 in	15 mph S
Mon 26	Drizzle	69 / 79 °F	0.13 in	8 mph SSW
Sun 25	Partly cloudy	67 / 89 °F	0	15 mph NNE
Sat 24	Light drizzle	66 / 82 °F	0.01 in	10 mph NNE
Fri 23	Light drizzle	67 / 75 °F	0.05 in	11 mph S
Thu 22	Light drizzle	68 / 81 °F	0.05 in	9 mph S

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Partly cloudy	63 / 91 °F	0	13 mph NNE
Tue 20	Light drizzle	62 / 74 °F	0.07 in	15 mph SSW
Mon 19	Thunderstorm	63 / 96 °F	0.24 in	17 mph SW
Sun 18	Overcast	72 / 88 °F	0	11 mph S
Sat 17	Partly cloudy	72 / 96 °F	0	11 mph NNE
Fri 16	Overcast	68 / 94 °F	0	12 mph NNE
Thu 15	Overcast	72 / 97 °F	0	11 mph NNE
Wed 14	Overcast	69 / 89 °F	0	11 mph NNE
Tue 13	Overcast	69 / 83 °F	0	15 mph SW
Mon 12	Mainly clear	66 / 85 °F	0	14 mph NNE
Sun 11	Overcast	70 / 86 °F	0	14 mph NNE
Sat 10	Overcast	71 / 84 °F	0	10 mph ENE
Fri 9	Overcast	65 / 91 °F	0	10 mph E
Thu 8	Mainly clear	61 / 83 °F	0	12 mph NNE
Wed 7	Heavy drizzle	65 / 73 °F	0.20 in	16 mph SSW
Tue 6	Mainly clear	66 / 87 °F	0	13 mph NNE
Mon 5	Light drizzle	65 / 79 °F	0.06 in	8 mph S
Sun 4	Light drizzle	62 / 76 °F	0.02 in	11 mph SSW
Sat 3	Light drizzle	58 / 78 °F	0.05 in	9 mph E
Fri 2	Mainly clear	55 / 78 °F	0	11 mph NNE
Thu 1	Light drizzle	58 / 73 °F	0.01 in	7 mph NE
Wed 30	Light drizzle	59 / 73 °F	0.07 in	12 mph S
Tue 29	Light drizzle	60 / 68 °F	0.08 in	9 mph SW

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 Saint LuciaQuestions

What's the weather like today in Saint Lucia?

Overcast, from 61 °F to 76 °F, with a light air from the southwest (2 mph) and a 18% chance of rain.

Will it rain tomorrow in Saint Lucia?

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

How warm will it be this week?

Between a low of 57 °F and a high of 87 °F; the warmest day, Sunday 1.

What's the UV index today?

It reaches 9 (very high). Avoid the midday sun; reflection off the water adds to it.

Is the pressure rising or falling?

It's 30.14 inHg and steady: +0.02 inHg over the last 24 hours.

When is the best time to visit Saint Lucia?

The best time to visit Saint Lucia is from May to September: highs of 74 °F to 78 °F, about 4 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Saint Lucia in October?

In October, Saint Lucia normally sees highs of 77 °F and lows of 63 °F, with about 10 rainy days (3.72 in for the month) and 6 hours of sunshine a day. The sea is around 74 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Saint Lucia?

The warmest is February, with average highs of 85 °F, and the coldest July, with lows of 56 °F. The wettest is January (5.60 in) and the driest, August.

More about Saint Lucia today

Weather near Saint Lucia

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 1:04 am (local time).

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