San José
August
Weather in San José for August 2025
Your guide to San José weather in August - trends and predictions
In general, the average temperature in San José at the beginning of August is 24.3 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 25.6 °C by the end of August.
San José experiences an exceptionally high level of rainfall in August, with more than 24 rainy days on average.
Is August a good time to visit San José? check out the best time to travel to San José page.
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1
Dry days
30
Rainy days
0
Snow days
25°/15°
Temperatures
6 km/h
Avg max wind
90 %
Avg humidity
San José in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2 24° | 3  24° | ||||
| 4 26° | 5  26° | 6 25° | 7 22° | 8 25° | 9 24° | 10 25° |
| 11 27° | 12 26° | 13 25° | 14 24° | 15 24° | 16 24° | 17 24° |
| 18 24° | 19 24° | 20 26° | 21 25° | 22 21° | 23 21° | 24 24° |
| 25  26° | 26 24° | 27 25° | 28 26° | 29  26° | 30 26° | 31 26° |
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Temperatures trend during August in San José
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. | Moderate or heavy rain shower | 23° /14° | 47 mm | 5 | |
| 2 Aug. | Moderate or heavy rain shower | 24° /14° | 23 mm | 6 | |
| 3 Aug. | Heavy rain at times | 24° /14° | 17.6 mm | 6 | |
| 4 Aug. | Moderate or heavy rain shower | 26° /14° | 4.4 mm | 6 | |
| 5 Aug. | Overcast | 26° /14° | 3.8 mm | 6 | |
| 6 Aug. | Moderate or heavy rain shower | 25° /13° | 4.6 mm | 6 | |
| 7 Aug. | Moderate or heavy rain shower | 22° /14° | 12 mm | 5 | |
| 8 Aug. | Moderate or heavy rain shower | 25° /14° | 55.7 mm | 6 | |
| 9 Aug. | Moderate or heavy rain shower | 24° /14° | 15.5 mm | 5 | |
| 10 Aug. | Moderate or heavy rain shower | 25° /14° | 3 mm | 6 | |
| 11 Aug. | Moderate or heavy rain shower | 27° /13° | 6.7 mm | 6 | |
| 12 Aug. | Moderate or heavy rain shower | 26° /12° | 8.1 mm | 6 | |
| 13 Aug. | Moderate or heavy rain shower | 25° /14° | 18.9 mm | 6 | |
| 14 Aug. | Moderate or heavy rain shower | 24° /13° | 17 mm | 6 | |
| 15 Aug. | Moderate or heavy rain shower | 24° /14° | 21.6 mm | 5 | |
| 16 Aug. | Heavy rain at times | 24° /14° | 6.8 mm | 6 | |
| 17 Aug. | Moderate or heavy rain shower | 24° /14° | 24.4 mm | 6 | |
| 18 Aug. | Moderate or heavy rain shower | 24° /14° | 12.5 mm | 6 | |
| 19 Aug. | Moderate or heavy rain shower | 24° /14° | 15.7 mm | 6 | |
| 20 Aug. | Moderate or heavy rain shower | 26° /13° | 9.1 mm | 6 | |
| 21 Aug. | Moderate or heavy rain shower | 25° /14° | 8.1 mm | 6 | |
| 22 Aug. | Moderate or heavy rain shower | 21° /14° | 36.2 mm | 5 | |
| 23 Aug. | Moderate or heavy rain shower | 21° /14° | 56.8 mm | 5 | |
| 24 Aug. | Moderate or heavy rain shower | 24° /12° | 25 mm | 6 | |
| 25 Aug. | Torrential rain shower | 26° /12° | 16.4 mm | 6 | |
| 26 Aug. | Torrential rain shower | 24° /12° | 21 mm | 6 | |
| 27 Aug. | Torrential rain shower | 25° /13° | 27 mm | 6 | |
| 28 Aug. | Torrential rain shower | 26° /13° | 40.9 mm | 6 | |
| 29 Aug. | Patchy light rain with thunder | 26° /13° | 11.2 mm | 6 | |
| 30 Aug. | Patchy light rain with thunder | 26° /13° | 9.3 mm | 6 | |
| 31 Aug. | Patchy light rain with thunder | 26° /13° | 30.9 mm | 6 | |
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Important Notice
Our weather forecast for San José in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San José forecast closer to your planned date for the most up-to-date weather information.
San José in August - FAQ
What are the expected maximum and minimum temperatures in San José during August?
During August, expect a variety of temperatures with highs around 25° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in San José during August?
Significant rainfall exceeding 750.8 mm is expected in San José during August, occurring over more than 30 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San José during August?
The average wind speed in San José during August is 6 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to San José in August?
As you prepare for your trip to San José in August, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in San José, during August, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
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