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August weather forecast in St.Lucia

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

27 July, sun

	758 mmHg		70%
	5.8 m/s		+23

27 July, Sunday. day, 24°; night, 15°; clear

28 July, mon

	758 mmHg		71%
	6 m/s		+22

28 July, Monday. day, 23°; night, 15°; clear

29 July, tue

	758 mmHg		68%
	6.2 m/s		+22

29 July, Tuesday. day, 24°; night, 15°; clear

30 July, wed

	759 mmHg		69%
	5.6 m/s		+22

30 July, Wednesday. day, 23°; night, 15°; clear

31 July, thu

	759 mmHg		71%
	5.7 m/s		+23

31 July, Thursday. day, 23°; night, 15°; clear

1 August, fri

	759 mmHg		69%
	5.9 m/s		+22

1 August, Friday. day, 24°; night, 15°; clear

2 August, sat

	759 mmHg		68%
	6.6 m/s		+23

2 August, Saturday. day, 24°; night, 15°; clear

3 August, sun

	758 mmHg		70%
	6.6 m/s		+23

3 August, Sunday. day, 24°; night, 16°; clear

4 August, mon

	757 mmHg		68%
	6.2 m/s		+23

4 August, Monday. day, 24°; night, 16°; clear

5 August, tue

	758 mmHg		70%
	6.1 m/s		+23

5 August, Tuesday. day, 24°; night, 16°; rain

6 August, wed

	759 mmHg		73%
	6.2 m/s		+23

6 August, Wednesday. day, 23°; night, 15°; clear

7 August, thu

	759 mmHg		72%
	6 m/s		+23

7 August, Thursday. day, 24°; night, 15°; rain

8 August, fri

	759 mmHg		70%
	6 m/s		+23

8 August, Friday. day, 24°; night, 15°; clear

9 August, sat

	758 mmHg		70%
	6.5 m/s		+23

9 August, Saturday. day, 24°; night, 15°; clear

10 August, sun

	759 mmHg		70%
	6.4 m/s		+23

10 August, Sunday. day, 23°; night, 15°; rain

11 August, mon

	758 mmHg		68%
	6.2 m/s		+23

11 August, Monday. day, 24°; night, 15°; clear

12 August, tue

	756 mmHg		67%
	6.8 m/s		+23

12 August, Tuesday. day, 25°; night, 15°; clear

13 August, wed

	756 mmHg		67%
	6.3 m/s		+23

13 August, Wednesday. day, 25°; night, 16°; clear

14 August, thu

	757 mmHg		68%
	6.4 m/s		+23

14 August, Thursday. day, 24°; night, 16°; clear

15 August, fri

	758 mmHg		69%
	6.4 m/s		+23

15 August, Friday. day, 24°; night, 16°; rain

16 August, sat

	759 mmHg		72%
	6.3 m/s		+23

16 August, Saturday. day, 23°; night, 16°; rain

17 August, sun

	758 mmHg		70%
	6.4 m/s		+22

17 August, Sunday. day, 23°; night, 16°; partly cloudy

18 August, mon

	757 mmHg		72%
	6.7 m/s		+23

18 August, Monday. day, 23°; night, 16°; rain

19 August, tue

	757 mmHg		69%
	6.8 m/s		+23

19 August, Tuesday. day, 24°; night, 16°; partly cloudy

20 August, wed

	758 mmHg		71%
	6.5 m/s		+23

20 August, Wednesday. day, 24°; night, 16°; clear

21 August, thu

	757 mmHg		69%
	6.3 m/s		+23

21 August, Thursday. day, 25°; night, 16°; clear

22 August, fri

	757 mmHg		69%
	6.8 m/s		+23

22 August, Friday. day, 24°; night, 16°; clear

23 August, sat

	757 mmHg		70%
	6.2 m/s		+23

23 August, Saturday. day, 23°; night, 16°; clear

24 August, sun

	757 mmHg		69%
	6.5 m/s		+23

24 August, Sunday. day, 24°; night, 16°; partly cloudy

25 August, mon

	757 mmHg		69%
	6.6 m/s		+23

25 August, Monday. day, 24°; night, 16°; clear

26 August, tue

	757 mmHg		70%
	7.2 m/s		+23

26 August, Tuesday. day, 25°; night, 16°; partly cloudy

27 August, wed

	758 mmHg		68%
	6.5 m/s		+23

27 August, Wednesday. day, 24°; night, 16°; partly cloudy

28 August, thu

	758 mmHg		69%
	6.4 m/s		+23

28 August, Thursday. day, 24°; night, 16°; clear

29 August, fri

	757 mmHg		69%
	6.9 m/s		+23

29 August, Friday. day, 25°; night, 16°; clear

30 August, sat

	756 mmHg		70%
	7.2 m/s		+23

30 August, Saturday. day, 25°; night, 17°; clear

31 August, sun

	756 mmHg		67%
	7.3 m/s		+23

31 August, Sunday. day, 25°; night, 17°; partly cloudy

1 September, mon

	757 mmHg		66%
	6.8 m/s		+23

1 September, Monday. day, 25°; night, 16°; clear

2 September, tue

	757 mmHg		69%
	6.6 m/s		+23

2 September, Tuesday. day, 25°; night, 16°; clear

3 September, wed

	756 mmHg		68%
	7.3 m/s		+23

3 September, Wednesday. day, 25°; night, 17°; clear

4 September, thu

	757 mmHg		71%
	6.6 m/s		+23

4 September, Thursday. day, 25°; night, 17°; clear

5 September, fri

	756 mmHg		71%
	6.9 m/s		+23

5 September, Friday. day, 25°; night, 17°; clear

6 September, sat

	758 mmHg		73%
	6.6 m/s		+23

6 September, Saturday. day, 24°; night, 16°; rain

Average data for 10 years

St.Lucia August

19

sunny days

6

days with precipitation

1

cloudy day

19 sunny days; 6 days with precipitation; 1 cloudy day;

69

%

air humidity

4.69

m/s

WindSE

30

mm of precipitation

(4% of annual average)

+23

°C

Water temperature

air humidity 69%; 30 millimeters of precipitation (4% of annual average); Wind south-easterly 4.69 Meters per second; Water temperature +23°

Weather graphs for August

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

S

S

SE

SE

S

S

S

SE

S

S

SE

S

SE

S

SE

S

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

SE

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Daytime temperature

Night-time temperature

Cities near you

Johannesburg
Pretoria
Durban
Inhambane
Mbabane
Maputo
Nigel
Ladysmith
Mbombela

Cities with similar weather in August

Vancouver
Gdansk
Lima
Brisbane
Bruges
San Sebastian
San Jose
Rostock
Santander

The weather forecast for August 2025 is based on historical data from the past 10 years.

In August, the weather in St.Lucia is typically warm. Average daily high temperature in August is about 24 degrees above zero. On average, St.Lucia has 19 sunny, 6 rainy, and 6 partly cloudy days in August. The rains are usually light. August as well as June and July is considered the most comfortable time to visit St.Lucia.

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