San Juan
May
Weather in San Juan for May 2025
Your guide to San Juan weather in May - trends and predictions
In general, the average temperature in San Juan at the beginning of May is 30.3 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 30.9 °C by the end of May.
San Juan experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 150.5 mm.
Temperatures
Rain 🌧️
3
Dry days
28
Rainy days
0
Snow days
30°/24°
Temperatures
19 km/h
Avg max wind
76 %
Avg humidity
San Juan in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | 2 31° | 3  31° | 4  30° | |||
| 5 30° | 6 30° | 7 31° | 8 30° | 9 30° | 10 30° | 11 32° |
| 12 31° | 13 31° | 14 30° | 15 32° | 16 30° | 17 31° | 18  31° |
| 19  31° | 20 31° | 21 31° | 22 29° | 23 28° | 24 31° | 25 30° |
| 26 31° | 27 31° | 28 30° | 29 31° | 30 31° | 31 32° |
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Temperatures trend during May in San Juan
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Patchy rain possible | 29° /23° | 5 mm | 7 | |
| 2 May | Patchy rain possible | 31° /23° | 1 mm | 7 | |
| 3 May | Partly cloudy | 31° /23° | 3.3 mm | 7 | |
| 4 May | Cloudy | 30° /23° | 8.6 mm | 7 | |
| 5 May | Patchy rain possible | 30° /23° | 7.4 mm | 7 | |
| 6 May | Cloudy | 30° /23° | 8.3 mm | 7 | |
| 7 May | Cloudy | 31° /22° | 13.4 mm | 7 | |
| 8 May | Patchy rain possible | 30° /22° | 4.4 mm | 7 | |
| 9 May | Patchy rain possible | 30° /23° | 7.1 mm | 7 | |
| 10 May | Cloudy | 30° /23° | 5 mm | 7 | |
| 11 May | Cloudy | 32° /23° | 2.1 mm | 7 | |
| 12 May | Patchy rain possible | 31° /22° | 1.8 mm | 7 | |
| 13 May | Patchy rain possible | 31° /23° | 0.6 mm | 7 | |
| 14 May | Patchy rain possible | 30° /23° | 0.3 mm | 7 | |
| 15 May | Partly cloudy | 32° /24° | 0.3 mm | 7 | |
| 16 May | Patchy rain possible | 30° /23° | 1.6 mm | 7 | |
| 17 May | Patchy rain possible | 31° /24° | 1.1 mm | 7 | |
| 18 May | Overcast | 31° /23° | 2.7 mm | 7 | |
| 19 May | Moderate or heavy rain shower | 31° /24° | 8.2 mm | 7 | |
| 20 May | Moderate or heavy rain shower | 31° /24° | 5.4 mm | 7 | |
| 21 May | Moderate rain at times | 31° /24° | 2.2 mm | 7 | |
| 22 May | Moderate or heavy rain shower | 29° /23° | 19 mm | 7 | |
| 23 May | Moderate or heavy rain shower | 28° /23° | 12.7 mm | 7 | |
| 24 May | Moderate or heavy rain shower | 31° /23° | 7.9 mm | 7 | |
| 25 May | Moderate or heavy rain shower | 30° /23° | 3.5 mm | 7 | |
| 26 May | Moderate rain at times | 31° /24° | 1.3 mm | 7 | |
| 27 May | Patchy rain possible | 31° /24° | 7.8 mm | 7 | |
| 28 May | Overcast | 30° /24° | 3.5 mm | 7 | |
| 29 May | Cloudy | 31° /24° | 1.4 mm | 7 | |
| 30 May | Patchy rain possible | 31° /24° | 2.7 mm | 7 | |
| 31 May | Patchy rain possible | 32° /24° | 1.1 mm | 7 | |
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Important Notice
Our weather forecast for San Juan in May 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 May - FAQ
What are the expected maximum and minimum temperatures in San Juan during May?
During May, expect a variety of temperatures with highs around 30° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Juan during May?
Significant rainfall exceeding 150.5 mm is expected in San Juan during May, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San Juan during May?
The average wind speed in San Juan during May is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in San Juan
Explore the daily rainfall trends and prepare for San Juans May weather 💧
UV exposure in San Juan during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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