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September weather forecast in Costa Rei

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

31 August, sun

	738 mmHg		62%
	3.6 m/s		+27

31 August, Sunday. day, 30°; night, 18°; rain

1 September, mon

	738 mmHg		63%
	3.7 m/s		+27

1 September, Monday. day, 30°; night, 18°; clear

2 September, tue

	738 mmHg		66%
	3.6 m/s		+27

2 September, Tuesday. day, 29°; night, 18°; clear

3 September, wed

	738 mmHg		67%
	3.6 m/s		+27

3 September, Wednesday. day, 30°; night, 18°; clear

4 September, thu

	738 mmHg		66%
	3.9 m/s		+27

4 September, Thursday. day, 30°; night, 18°; clear

5 September, fri

	738 mmHg		64%
	4.19 m/s		+27

5 September, Friday. day, 30°; night, 18°; clear

6 September, sat

	738 mmHg		63%
	3.8 m/s		+27

6 September, Saturday. day, 30°; night, 18°; clear

7 September, sun

	738 mmHg		65%
	3.9 m/s		+26

7 September, Sunday. day, 29°; night, 18°; partly cloudy

8 September, mon

	738 mmHg		66%
	4.1 m/s		+26

8 September, Monday. day, 29°; night, 18°; partly cloudy

9 September, tue

	738 mmHg		65%
	3.8 m/s		+26

9 September, Tuesday. day, 29°; night, 17°; rain

10 September, wed

	738 mmHg		67%
	3.7 m/s		+26

10 September, Wednesday. day, 28°; night, 17°; rain

11 September, thu

	738 mmHg		68%
	4 m/s		+26

11 September, Thursday. day, 28°; night, 17°; clear

12 September, fri

	737 mmHg		69%
	3.9 m/s		+26

12 September, Friday. day, 28°; night, 17°; rain

13 September, sat

	738 mmHg		67%
	4.5 m/s		+25

13 September, Saturday. day, 28°; night, 17°; clear

14 September, sun

	738 mmHg		67%
	4.3 m/s		+25

14 September, Sunday. day, 27°; night, 17°; partly cloudy

15 September, mon

	738 mmHg		68%
	3.9 m/s		+25

15 September, Monday. day, 28°; night, 17°; clear

16 September, tue

	737 mmHg		68%
	4.1 m/s		+25

16 September, Tuesday. day, 28°; night, 17°; clear

17 September, wed

	737 mmHg		68%
	4.1 m/s		+25

17 September, Wednesday. day, 28°; night, 17°; partly cloudy

18 September, thu

	737 mmHg		70%
	4 m/s		+25

18 September, Thursday. day, 27°; night, 17°; partly cloudy

19 September, fri

	737 mmHg		67%
	4.3 m/s		+25

19 September, Friday. day, 28°; night, 17°; partly cloudy

20 September, sat

	738 mmHg		68%
	3.9 m/s		+24

20 September, Saturday. day, 27°; night, 16°; partly cloudy

21 September, sun

	739 mmHg		70%
	3.7 m/s		+25

21 September, Sunday. day, 26°; night, 16°; partly cloudy

22 September, mon

	738 mmHg		70%
	3.4 m/s		+24

22 September, Monday. day, 27°; night, 16°; overcast

23 September, tue

	738 mmHg		72%
	3.9 m/s		+24

23 September, Tuesday. day, 26°; night, 16°; partly cloudy

24 September, wed

	737 mmHg		73%
	4.19 m/s		+24

24 September, Wednesday. day, 26°; night, 16°; rain

25 September, thu

	737 mmHg		71%
	4.1 m/s		+24

25 September, Thursday. day, 26°; night, 16°; rain

26 September, fri

	738 mmHg		71%
	4.1 m/s		+24

26 September, Friday. day, 25°; night, 15°; rain

27 September, sat

	739 mmHg		72%
	3.8 m/s		+24

27 September, Saturday. day, 25°; night, 15°; clear

28 September, sun

	739 mmHg		71%
	3.9 m/s		+24

28 September, Sunday. day, 25°; night, 15°; clear

29 September, mon

	739 mmHg		71%
	3.6 m/s		+24

29 September, Monday. day, 26°; night, 15°; clear

30 September, tue

	739 mmHg		73%
	3.4 m/s		+24

30 September, Tuesday. day, 26°; night, 15°; clear

1 October, wed

	738 mmHg		72%
	3.5 m/s		+24

1 October, Wednesday. day, 26°; night, 15°; clear

2 October, thu

	738 mmHg		71%
	3.6 m/s		+24

2 October, Thursday. day, 26°; night, 15°; clear

3 October, fri

	738 mmHg		72%
	4 m/s		+24

3 October, Friday. day, 25°; night, 15°; clear

4 October, sat

	739 mmHg		73%
	4.3 m/s		+23

4 October, Saturday. day, 25°; night, 15°; partly cloudy

Average data for 10 years

Costa Rei September

14

sunny days

6

days with precipitation

2

cloudy days

14 sunny days; 6 days with precipitation; 2 cloudy days;

68

%

air humidity

2.4

m/s

WindS

44

mm of precipitation

(9% of annual average)

+25

°C

Water temperature

air humidity 68%; 44 millimeters of precipitation (9% of annual average); Wind southerly 2.4 Meters per second; Water temperature +25°

Weather graphs for September

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

S

S

S

S

S

S

S

S

S

S

S

S

S

S

SW

SW

SW

S

SW

S

S

S

S

S

S

S

S

S

SW

S

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

Daytime temperature

Night-time temperature

Cities near you

Rome
Tunis
Palermo
Sousse
Monastir
Cagliari
Hammamet
Anzio
Ajaccio

Cities with similar weather in September

Kemer
Barcelona
Rome
Heraklion
Thessaloniki
Salou
Malaga
Alicante
Naples

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

In September, the weather in Costa Rei is typically hot. Average daily high temperature in September is about 28 degrees above zero. On average, Costa Rei has 14 sunny, 9 partly cloudy, 6 rainy, and 1 cloudy day in September. The rains are usually moderate. September as well as May, June, and October is considered the most comfortable time to visit Costa Rei.

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