Weather in San José for September 2024
Until now, September 2024 in San José is slightly cooler than the historical average by -0.7 °C.
The forecast for the next days in San José predicts temperatures to be around 23 °C, close to the historical average.
In general, the average temperature in San José at the beginning of September is 25 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.9 °C by the end of September.
San José experiences an exceptionally high level of rainfall in September, with more than 24 rainy days on average.
Is September a good time to visit San José? check out the best time to travel to San José page.
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San José in September average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  25° | ||||||
| 2 24° | 3  25° | 4 25° | 5 26° | 6 25° | 7 25° | 8 24° |
| 9 24° | 10 26° | 11 25° | 12  25° | 13 27° | 14  26° | 15 27° |
| 16  26° | 17 25° | 18 26° | 19 24° | 20 23° | 21 24° | 22 24° |
| 23 24° | 24 22° | 25 21° | 26 23° | 27 25° | 28 20° | 29 19° |
| 30 23° |
You can click on date
Temperatures trend during September in San José
September weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Torrential rain shower | 25° /15° | 24.3 mm | 6 | |
| 2 Sept. | Torrential rain shower | 24° /13° | 35 mm | 6 | |
| 3 Sept. | Moderate or heavy rain shower | 25° /13° | 14.1 mm | 6 | |
| 4 Sept. | Torrential rain shower | 25° /13° | 24.8 mm | 6 | |
| 5 Sept. | Torrential rain shower | 26° /13° | 33.6 mm | 6 | |
| 6 Sept. | Moderate or heavy rain shower | 25° /13° | 35.8 mm | 6 | |
| 7 Sept. | Torrential rain shower | 25° /12° | 50.3 mm | 6 | |
| 8 Sept. | Moderate or heavy rain shower | 24° /13° | 14.2 mm | 6 | |
| 9 Sept. | Torrential rain shower | 24° /13° | 17.8 mm | 6 | |
| 10 Sept. | Moderate or heavy rain shower | 26° /12° | 13 mm | 6 | |
| 11 Sept. | Moderate or heavy rain shower | 25° /13° | 41.1 mm | 6 | |
| 12 Sept. | Moderate rain | 25° /14° | 7.7 mm | 6 | |
| 13 Sept. | Moderate or heavy rain shower | 27° /13° | 7.2 mm | 6 | |
| 14 Sept. | Mist | 26° /12° | 9.8 mm | 6 | |
| 15 Sept. | Mist | 27° /12° | 2.6 mm | 6 | |
| 16 Sept. | Light rain shower | 26° /13° | 8.5 mm | 6 | |
| 17 Sept. | Light rain shower | 25° /13° | 14.7 mm | 6 | |
| 18 Sept. | Heavy rain | 26° /15° | 23.6 mm | 11 | |
| 19 Sept. | Heavy rain | 24° /16° | 31.9 mm | 9 | |
| 20 Sept. | Moderate rain | 23° /15° | 12.6 mm | 10 | |
| 21 Sept. | Moderate rain | 24° /15° | 7.9 mm | 1 | |
| 22 Sept. | Moderate rain | 24° /16° | 12.7 mm | 4 | |
| 23 Sept. | Patchy rain possible | 24° /16° | 2.5 mm | 4 | |
| 24 Sept. | Moderate rain | 22° /16° | 14 mm | 4 | |
| 25 Sept. | Patchy rain possible | 21° /16° | 4.1 mm | 4 | |
| 26 Sept. | Moderate rain | 23° /16° | 5.5 mm | 4 | |
| 27 Sept. | Moderate rain | 25° /16° | 5.6 mm | 4 | |
| 28 Sept. | Patchy rain possible | 20° /15° | 2.4 mm | 4 | |
| 29 Sept. | Moderate rain | 19° /15° | 6.7 mm | 4 | |
| 30 Sept. | Patchy rain possible | 23° /14° | 0.3 mm | 4 | |
| Next | |||||
San José in September - FAQ
What to pack to San José in September?
As you prepare for your trip to San José in September, 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 September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
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Where is San José?Get accurate weather forecasts for San José, located at latitude 9.933 and longitude -84.083. Stay updated with localized weather information tailored for San José.