San Juan (Punta Caña)
May
Weather in San Juan for May 2027
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 28.8 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 28.9 °C by the end of May.
San Juan in May brings notable rainfall, with an average of 18 rainy days and a total precipitation of 191.7 mm.
Is May a good time to visit San Juan? check out the best time to travel to San Juan page.
Temperatures
Rain 🌧️
More
13
Dry days
18
Rainy days
0
Snow days
29°/18°
Temperatures
14 km/h
Avg max wind
78 %
Avg humidity
San Juan Weather May
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Temperatures trend during May in San Juan
See the weather trend as well as the moving average line
May weather in San Juan day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Light rain | 29° /16° | 5.4 mm | 8 | |
| 2 May | Light rain | 29° /17° | 4.1 mm | 8 | |
| 3 May | Light rain | 29° /18° | 5.3 mm | 8 | |
| 4 May |  Moderate or heavy rain shower | 28° /18° | 8.7 mm | 9 | |
| 5 May | Light rain | 29° /18° | 4 mm | 9 | |
| 6 May |  Moderate rain | 29° /16° | 12.1 mm | 9 | |
| 7 May | Moderate or heavy rain shower | 29° /17° | 9.5 mm | 8 | |
| 8 May | Light rain | 29° /16° | 3.3 mm | 7 | |
| 9 May | Light rain | 29° /19° | 2.9 mm | 8 | |
| 10 May | Light rain | 30° /18° | 3.2 mm | 9 | |
| 11 May |  Patchy rain possible | 29° /17° | 1.1 mm | 9 | |
| 12 May | Moderate rain | 30° /17° | 13.5 mm | 7 | |
| 13 May | Light rain | 30° /19° | 5.2 mm | 7 | |
| 14 May | Patchy rain possible | 30° /18° | 1.3 mm | 7 | |
| 15 May |  Heavy rain | 27° /18° | 50.1 mm | 8 | |
| 16 May | Light rain | 29° /18° | 3.2 mm | 7 | |
| 17 May |  Patchy light rain with thunder | 30° /17° | 2.7 mm | 8 | |
| 18 May | Light rain | 30° /18° | 2.9 mm | 8 | |
| 19 May | Light rain | 30° /18° | 2.6 mm | 8 | |
| 20 May | Patchy rain possible | 30° /17° | 1.4 mm | 8 | |
| 21 May | Patchy rain possible | 30° /18° | 2.4 mm | 7 | |
| 22 May | Light rain | 27° /17° | 4.5 mm | 7 | |
| 23 May | Moderate rain | 27° /18° | 8.5 mm | 7 | |
| 24 May | Light rain | 29° /18° | 6.2 mm | 7 | |
| 25 May | Light rain | 29° /17° | 2.9 mm | 8 | |
| 26 May | Moderate or heavy rain shower | 29° /18° | 8.8 mm | 8 | |
| 27 May | Light rain | 30° /20° | 5.9 mm | 7 | |
| 28 May | Light rain | 28° /19° | 5.7 mm | 8 | |
| 29 May | Patchy light drizzle | 28° /19° | 2 mm | 8 | |
| 30 May | Light rain shower | 29° /18° | 1.3 mm | 8 | |
| 31 May | Patchy rain possible | 29° /17° | 1.1 mm | 8 | |
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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.
Change Month
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 29° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Juan during May?
Significant rainfall exceeding 191.7 mm is expected in San Juan during May, occurring over more than 18 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 14 km/h, suggesting breezy to windy conditions, depending on your activities.
San Juan water temperatures in May
The average water temperature of the Caribbean Sea near San Juan in May is 27.1 °C. At the beginning of May temperatures are around 27.2 °C; by the end of the month they stay fairly steady and reach 26.9 °C.
- What is the water temperature in San Juan in May?
- The average water temperature in San Juan in May is 27.1 °C.
- Can you swim in San Juan in May?
- Ideal conditions for families and casual swimmers. You can stay in for long swims or reef explorations with no thermal protection required.
May rainfall patterns in San Juan
Explore the daily rainfall trends and prepare for San Juans May weather 💧
Typically, San Juan has 18 rainy days in May with a total of 191.7 mm of rainfall.
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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