San Juan
October
Weather in San Juan for October 2025
Your guide to San Juan weather in October - trends and predictions
In general, the average temperature in San Juan at the beginning of October is 31.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 29.4 °C by the end of October.
San Juan experiences an exceptionally high level of rainfall in October, with more than 24 rainy days on average.
Is October a good time to visit San Juan? check out the best time to travel to San Juan page.
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6
Dry days
25
Rainy days
0
Snow days
31°/25°
Temperatures
18 km/h
Avg max wind
78 %
Avg humidity
San Juan in October average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  31° | 2 31° | 3  31° | 4 31° | 5 31° | ||
| 6 32° | 7  33° | 8  32° | 9 32° | 10 33° | 11  31° | 12 32° |
| 13 31° | 14  32° | 15 31° | 16 34° | 17  32° | 18 32° | 19 31° |
| 20  30° | 21 31° | 22 31° | 23 31° | 24 33° | 25 30° | 26 29° |
| 27 30° | 28 30° | 29 30° | 30 29° | 31 28° |
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Temperatures trend during October in San Juan
See the weather trend as well as the moving average line
October weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Oct. | Light rain shower | 31° /26° | 1.6 mm | 7 | |
| 2 Oct. | Patchy rain possible | 31° /26° | 1 mm | 8 | |
| 3 Oct. | Moderate or heavy rain shower | 31° /26° | 7.6 mm | 7 | |
| 4 Oct. | Light rain shower | 31° /26° | 3.1 mm | 7 | |
| 5 Oct. | Light rain shower | 31° /26° | 1.5 mm | 7 | |
| 6 Oct. | Patchy rain possible | 32° /26° | 0.4 mm | 7 | |
| 7 Oct. | Patchy light drizzle | 33° /25° | 34.5 mm | 8 | |
| 8 Oct. | Sunny | 32° /25° | 7.7 mm | 8 | |
| 9 Oct. | Patchy rain possible | 32° /25° | 5.8 mm | 7 | |
| 10 Oct. | Moderate rain at times | 33° /26° | 0.4 mm | 8 | |
| 11 Oct. | Cloudy | 31° /25° | 0 mm | 7 | |
| 12 Oct. | Patchy rain possible | 32° /25° | 0.3 mm | 7 | |
| 13 Oct. | Patchy rain possible | 31° /25° | 0.1 mm | 7 | |
| 14 Oct. | Moderate or heavy rain with thunder | 32° /26° | 11.7 mm | 8 | |
| 15 Oct. | Light rain shower | 31° /26° | 13 mm | 7 | |
| 16 Oct. | Patchy rain possible | 34° /25° | 0 mm | 8 | |
| 17 Oct. | Partly cloudy | 32° /25° | 10.1 mm | 8 | |
| 18 Oct. | Patchy rain possible | 32° /26° | 9 mm | 7 | |
| 19 Oct. | Patchy rain possible | 31° /26° | 4.3 mm | 7 | |
| 20 Oct. | Thundery outbreaks possible | 30° /26° | 31.7 mm | 7 | |
| 21 Oct. | Light rain shower | 31° /26° | 4.5 mm | 8 | |
| 22 Oct. | Patchy rain possible | 31° /26° | 1.2 mm | 8 | |
| 23 Oct. | Light rain shower | 31° /25° | 18.4 mm | 7 | |
| 24 Oct. | Patchy light rain | 33° /25° | 3.2 mm | 8 | |
| 25 Oct. | Light rain shower | 30° /25° | 4.6 mm | 7 | |
| 26 Oct. | Light rain shower | 29° /25° | 3.6 mm | 7 | |
| 27 Oct. | Light rain shower | 30° /24° | 7.5 mm | 7 | |
| 28 Oct. | Moderate or heavy rain shower | 30° /24° | 12.5 mm | 7 | |
| 29 Oct. | Moderate or heavy rain shower | 30° /26° | 13.6 mm | 8 | |
| 30 Oct. | Light rain shower | 29° /25° | 16.1 mm | 6 | |
| 31 Oct. | Light rain shower | 28° /23° | 9.1 mm | 6 | |
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Important Notice
Our weather forecast for San Juan in October 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 Juan forecast closer to your planned date for the most up-to-date weather information.
San Juan in October - FAQ
What are the expected maximum and minimum temperatures in San Juan during October?
During October, expect a variety of temperatures with highs around 31° and lows near 25°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Juan during October?
Significant rainfall exceeding 197.4 mm is expected in San Juan during October, occurring over more than 25 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San Juan during October?
The average wind speed in San Juan during October is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to San Juan in October?
As you prepare for your trip to San Juan in October, 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 Juan, during October, 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
- Sandals/Flip-flops: Comfortable for warm climates
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
- Insect Repellent: For destinations with mosquitos or other insects
October rainfall patterns in San Juan
Explore the daily rainfall trends and prepare for San Juans October weather 💧
UV exposure in San Juan during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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