Weather in San José in August

San José, Costa Rica averages a high of 24.3°C (75.7°F) and low of 17.7°C (63.9°F) in August, with 27 rain days and 8.3 hours of daily sunshine. Travel score: 63.7/100 (Good). The best time to visit San José is February.

High
24°C76°F
Low
18°C64°F
🌧️
27
rain days
☀️
8.3
hrs/day sunshine
💧
90%
humidity
64— Good

August in San José is warm and very rainy — pack an umbrella and enjoy indoor attractions too.

JanFebMarAprMayJunJulAugSepOctNovDec

What are the average temperatures in San José?

JanFebMarAprMayJunJulAug24°18°SepOctNovDec

How much does it rain in San José in August?

San José receives an average of 363mm of rainfall across 27 rainy days in August. The annual total is 3028.4mm.

JanFebMarAprMayJunJulAug27dSepOctNovDec

What should I pack for San José in August?

Essentials

👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 24°C
🧥
Waterproof jacket
Frequent rain expected (27 rainy days)
☔
Umbrella
Essential for the rainy season
👢
Waterproof shoes
Keep your feet dry in wet conditions
🧴
Sunscreen SPF 30+
8 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun

🎉Visiting Costa Rica in August?

Don't miss any public holidays — check before you book!

→ See Costa Rica holidays 2026→ See long weekends in Costa Rica

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Limón

August

28°
65
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San Francisco

August

24°
63
Good

Other months in San José

January
25°
11 rain days
81
February
26°
9 rain days
84
March
27°
11 rain days
82
April
27°
16 rain days
74
May
25°
26 rain days
64
June
24°
28 rain days
63
July
24°
26 rain days
63
September
24°
28 rain days
63
October
24°
29 rain days
62
November
23°
25 rain days
62
December
24°
16 rain days
72

Data based on 1994–2024 averages · Last updated: 2024-12-31