San Juan
January
Weather in San Juan for January 2025
Your guide to San Juan weather in January - trends and predictions
Until now, January 2025 in San Juan is slightly cooler than the historical average by -1.4 °C.
The forecast for the next days in San Juan predicts temperatures to be around 28 °C, close to the historical average.
In general, the average temperature in San Juan at the beginning of January is 27.3 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 28.1 °C by the end of January.
San Juan in January brings notable rainfall, with an average of 18 rainy days and a total precipitation of 57.1 mm.
Temperatures
Rain 🌧️
13
Dry days
18
Rainy days
0
Snow days
27°/21°
Temperatures
22 km/h
Avg max wind
76 %
Avg humidity
San Juan in January average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2 28° | 3  27° | 4 27° | 5 27° | ||
| 6 27° | 7 27° | 8 28° | 9 28° | 10 28° | 11 26° | 12  27° |
| 13 27° | 14 27° | 15 27° | 16  26° | 17 27° | 18 27° | 19 29° |
| 20  30° | 21 28° | 22  29° | 23 30° | 24 28° | 25 28° | 26 28° |
| 27 27° | 28 28° | 29 28° | 30 29° | 31 29° |
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Temperatures trend during January in San Juan
See the weather trend as well as the moving average line
January weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Jan. | Patchy rain possible | 28° /22° | 1.5 mm | 6 | |
| 2 Jan. | Patchy rain possible | 28° /22° | 4.6 mm | 6 | |
| 3 Jan. | Moderate rain at times | 27° /22° | 2.2 mm | 6 | |
| 4 Jan. | Moderate rain at times | 27° /22° | 2.1 mm | 6 | |
| 5 Jan. | Moderate rain at times | 27° /22° | 8.7 mm | 6 | |
| 6 Jan. | Patchy rain possible | 27° /21° | 1.3 mm | 6 | |
| 7 Jan. | Moderate or heavy rain shower | 27° /21° | 2.6 mm | 6 | |
| 8 Jan. | Moderate or heavy rain shower | 28° /21° | 3 mm | 6 | |
| 9 Jan. | Patchy rain possible | 28° /22° | 1.2 mm | 6 | |
| 10 Jan. | Patchy rain possible | 28° /22° | 2.8 mm | 6 | |
| 11 Jan. | Moderate rain at times | 26° /21° | 2.6 mm | 6 | |
| 12 Jan. | Heavy rain at times | 27° /22° | 1.8 mm | 6 | |
| 13 Jan. | Patchy rain possible | 27° /22° | 0.5 mm | 6 | |
| 14 Jan. | Patchy rain possible | 27° /22° | 2.5 mm | 6 | |
| 15 Jan. | Heavy rain at times | 27° /22° | 4.1 mm | 6 | |
| 16 Jan. | Overcast | 26° /22° | 1 mm | 6 | |
| 17 Jan. | Overcast | 27° /23° | 0.5 mm | 6 | |
| 18 Jan. | Overcast | 27° /23° | 0.3 mm | 6 | |
| 19 Jan. | Patchy rain possible | 29° /22° | 0.5 mm | 6 | |
| 20 Jan. | Cloudy | 30° /21° | 0 mm | 7 | |
| 21 Jan. | Patchy rain possible | 28° /25° | 3.5 mm | 1.7 | |
| 22 Jan. | Moderate rain | 29° /24° | 9.1 mm | 1.8 | |
| 23 Jan. | Patchy rain possible | 30° /25° | 2.7 mm | 1.6 | |
| 24 Jan. | Patchy rain possible | 28° /23° | 1.3 mm | 1.7 | |
| 25 Jan. | Patchy rain possible | 28° /23° | 0.3 mm | 0.1 | |
| 26 Jan. | Patchy rain possible | 28° /23° | 0.8 mm | 6 | |
| 27 Jan. | Patchy rain possible | 27° /23° | 0.3 mm | 6 | |
| 28 Jan. | Patchy rain possible | 28° /23° | 0.9 mm | 5 | |
| 29 Jan. | Patchy rain possible | 28° /24° | 1.9 mm | 6 | |
| 30 Jan. | Patchy rain possible | 29° /24° | 0.1 mm | 6 | |
| 31 Jan. | Patchy rain possible | 29° /24° | 0.1 mm | 6 | |
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Important Notice
Our weather forecast for San Juan in January 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 January - FAQ
What are the expected maximum and minimum temperatures in San Juan during January?
During January, expect a variety of temperatures with highs around 27° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Juan during January?
Moderate rainfall is anticipated in San Juan during January, with a total of 57.1 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in San Juan during January?
The average wind speed in San Juan during January is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in San Juan
Explore the daily rainfall trends and prepare for San Juans January weather 💧
UV exposure in San Juan during January
Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
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