Weather in San Juan in March 2025
- March is usually the driest month of the year in San Juan
Average weather
Average temperature in San Juan in March
The temperature in March is +28°C on average, with a range between a maximum of +31°C during the day and a minimum of +20°C at night.
The average maximum temperature goes up 9% by the end of the month, compared with the beginning of the month, from +28°C to +29°C.
Is San Juan warm or cold in March?
San Juan is typically warm in March.
Maximum temperatures go up compared to the previous month from +28°C to +28°C. The minimum temperature also goes up from +22°C to +23°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
March is one of the coolest months in San Juan, here is the comparison with other months:
Water temperature in San Juan in March
Water in San Juan in March is Warm. It varies from +25°C to +26°C, with an average of +26°C. This is almost similar to the air temperature, which averages +28°C.
The water temperature in March is one of the coldest of the entire year:
Can you swim in San Juan in March?
Climate in San Juan in March
| February | March | April | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +28°C | +28°C | +29°C | ||||
| Min. temperature | ||||||
| +19°C | +20°C | +21°C | ||||
| Max. temperature | ||||||
| +32°C | +33°C | +33°C | ||||
| Rainfall | ||||||
| 38 mm | 49 mm | 94 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +26°C | +26°C | +27°C | ||||
| Humidity | ||||||
| 75% | 73% | 74% | ||||
| Air pressure | ||||||
| 1016 HPa | 1015 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 2 | 3 | 2 | ||||
| Cloudy days | ||||||
| 7 | 7 | 5 | ||||
| Rainy days | ||||||
| 19 | 21 | 23 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
March weather is still as good as in February. The temperature levels stay the same in the area of +28°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 38 mm to 49 mm. It feels drier, as humidity decreases from 75% to 73%. The average wind speed doesn’t change much during March, staying around 3 m/s. The good news is there are likely to be more sunny days in March, from 2 to 3.
April brings much the same weather, it remains good.
Wind
The average wind speed is 4 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in San Juan is gradually increasing during March, going from 3 m/s to 5 m/s over the course of the month.
Rain
How was the weather last March in San Juan?
Climate Change over Years
The climate in San Juan in March has not changed much over the last 43 years.
The average temperature was the lowest in 2008 (+29°C) and the highest in 2013 (+31°C). The driest year was 1994 with only 675 mm of rainfall, and the wettest year was 2023 with 2338 mm.
FAQ
Is March a good time to visit San Juan?
Can you sunbathe in San Juan in March?
Can you swim in San Juan in March?
Is San Juan rainy in March?
Is it sunny in San Juan in March?
Monthly weather in San Juan
Source of the data
For this page, we’ve looked at the typical weather in San Juan, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.