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August weather forecast in San Jose

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

	751 mmHg		81%
	6.6 m/s		+30

27 July, Sunday. day, 28°; night, 26°; rain

28 July, mon

	751 mmHg		81%
	6.9 m/s		+30

28 July, Monday. day, 28°; night, 26°; rain

29 July, tue

	751 mmHg		82%
	7 m/s		+30

29 July, Tuesday. day, 28°; night, 26°; rain

30 July, wed

	751 mmHg		81%
	7 m/s		+30

30 July, Wednesday. day, 28°; night, 26°; rain

31 July, thu

	751 mmHg		82%
	7.1 m/s		+30

31 July, Thursday. day, 28°; night, 26°; rain

1 August, fri

	750 mmHg		81%
	7 m/s		+30

1 August, Friday. day, 28°; night, 27°; overcast

2 August, sat

	750 mmHg		82%
	7.2 m/s		+30

2 August, Saturday. day, 28°; night, 26°; rain

3 August, sun

	751 mmHg		81%
	7.4 m/s		+30

3 August, Sunday. day, 28°; night, 27°; overcast

4 August, mon

	751 mmHg		81%
	7.4 m/s		+30

4 August, Monday. day, 28°; night, 27°; overcast

5 August, tue

	751 mmHg		80%
	7.2 m/s		+30

5 August, Tuesday. day, 28°; night, 27°; overcast

6 August, wed

	751 mmHg		80%
	6.9 m/s		+30

6 August, Wednesday. day, 28°; night, 27°; overcast

7 August, thu

	751 mmHg		80%
	6.7 m/s		+30

7 August, Thursday. day, 28°; night, 27°; overcast

8 August, fri

	751 mmHg		80%
	6.2 m/s		+30

8 August, Friday. day, 28°; night, 27°; overcast

9 August, sat

	751 mmHg		80%
	5.9 m/s		+30

9 August, Saturday. day, 28°; night, 27°; overcast

10 August, sun

	751 mmHg		81%
	6.1 m/s		+30

10 August, Sunday. day, 28°; night, 27°; overcast

11 August, mon

	751 mmHg		81%
	6.3 m/s		+30

11 August, Monday. day, 28°; night, 27°; rain

12 August, tue

	751 mmHg		81%
	6.6 m/s		+30

12 August, Tuesday. day, 28°; night, 26°; rain

13 August, wed

	751 mmHg		81%
	6.3 m/s		+30

13 August, Wednesday. day, 28°; night, 26°; rain

14 August, thu

	751 mmHg		81%
	6.4 m/s		+30

14 August, Thursday. day, 28°; night, 26°; rain

15 August, fri

	751 mmHg		81%
	6.3 m/s		+30

15 August, Friday. day, 28°; night, 26°; rain

16 August, sat

	751 mmHg		82%
	6.3 m/s		+30

16 August, Saturday. day, 28°; night, 26°; rain

17 August, sun

	751 mmHg		81%
	6.1 m/s		+30

17 August, Sunday. day, 28°; night, 26°; rain

18 August, mon

	751 mmHg		81%
	6.3 m/s		+30

18 August, Monday. day, 28°; night, 26°; rain

19 August, tue

	751 mmHg		81%
	6.2 m/s		+30

19 August, Tuesday. day, 28°; night, 26°; rain

20 August, wed

	751 mmHg		81%
	6.3 m/s		+30

20 August, Wednesday. day, 28°; night, 27°; partly cloudy

21 August, thu

	751 mmHg		81%
	6.4 m/s		+30

21 August, Thursday. day, 28°; night, 26°; rain

22 August, fri

	751 mmHg		80%
	6.2 m/s		+30

22 August, Friday. day, 28°; night, 27°; rain

23 August, sat

	751 mmHg		80%
	5.7 m/s		+30

23 August, Saturday. day, 28°; night, 26°; rain

24 August, sun

	751 mmHg		81%
	5.9 m/s		+30

24 August, Sunday. day, 28°; night, 26°; rain

25 August, mon

	751 mmHg		81%
	6.3 m/s		+30

25 August, Monday. day, 28°; night, 26°; rain

26 August, tue

	751 mmHg		81%
	6.5 m/s		+30

26 August, Tuesday. day, 28°; night, 26°; rain

27 August, wed

	751 mmHg		81%
	6.1 m/s		+30

27 August, Wednesday. day, 28°; night, 27°; rain

28 August, thu

	751 mmHg		80%
	6 m/s		+30

28 August, Thursday. day, 28°; night, 27°; partly cloudy

29 August, fri

	751 mmHg		81%
	6.1 m/s		+30

29 August, Friday. day, 28°; night, 26°; rain

30 August, sat

	751 mmHg		80%
	5.6 m/s		+30

30 August, Saturday. day, 28°; night, 26°; rain

31 August, sun

	751 mmHg		81%
	6.1 m/s		+30

31 August, Sunday. day, 28°; night, 26°; rain

1 September, mon

	751 mmHg		81%
	6.5 m/s		+30

1 September, Monday. day, 28°; night, 26°; rain

2 September, tue

	751 mmHg		81%
	6.1 m/s		+30

2 September, Tuesday. day, 28°; night, 27°; rain

3 September, wed

	751 mmHg		80%
	5.8 m/s		+30

3 September, Wednesday. day, 28°; night, 27°; partly cloudy

4 September, thu

	751 mmHg		81%
	5.8 m/s		+30

4 September, Thursday. day, 28°; night, 26°; partly cloudy

5 September, fri

	751 mmHg		81%
	5.8 m/s		+30

5 September, Friday. day, 28°; night, 27°; overcast

6 September, sat

	751 mmHg		81%
	5.8 m/s		+30

6 September, Saturday. day, 28°; night, 26°; rain

Average data for 10 years

San Jose August

0

sunny days

20

days with precipitation

20

cloudy days

0 sunny days; 20 days with precipitation; 20 cloudy days;

81

%

air humidity

4.8

m/s

WindS

131

mm of precipitation

(5% of annual average)

+30

°C

Water temperature

air humidity 81%; 131 millimeters of precipitation (5% of annual average); Wind southerly 4.8 Meters per second; Water temperature +30°

Weather graphs for August

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

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

S

S

S

S

S

S

S

SW

S

SW

S

S

SW

SW

S

S

S

S

S

SW

SW

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

Cebu
Panglao
Davao
Alabel
Virac
Surigao
Dauin
Dumaguete
General Santos

Cities with similar weather in August

Phuket
Pattaya
Santo Domingo
Varadero
Punta Cana
Samui
Tekirova
Krabi
Ko Chang

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

In August, the weather in San Jose is typically hot. Average daily high temperature in August is about 28 degrees above zero. On average, San Jose has 20 rainy, 9 cloudy, and 2 partly cloudy days in August. The rains are usually heavy. August as well as January, February, March, and April is considered the most uncomfortable time to visit San Jose.

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