San Juan Weather in March
With daytime temperatures of 29°C (84°F) and nighttime lows of 22°C (72°F), March in San Juan brings high temperatures during the day. The perfect weather makes it an appealing time to visit.
Rainfall in San Juan in March
Historically, approximately 15 days this month are expected to have rain, averaging 55 mm (2.2 in). Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in San Juan in March
San Juan in March is worth a visit. The temperature is perfect, with 29°C (84°F) during the day and 22°C (72°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights are mild at around 22°C (72°F), which is comfortable for most people.
Sunshine in San Juan in March
Expect a lot of sunshine this month, with about 284 hours of sun. These sunny conditions add to the overall experience.
Wind Speed in San Juan in March
Average wind speeds reach 3 m/s (6 knots) in March, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.
Average water temperature in March
The water is 26°C (79°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.If your ideal day consists of dry skies and pleasant temperatures, January, February, March and December typically offer the best circumstances for San Juan.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Puerto Rico, check out our San Juan's climate page.
San Juan Temperature in March
Min Temperature
22°C (72°F)
Max Temperature
29°C (84°F)
Water Temperature
26°C (79°F)
Chance of Rain
50%
Precipitation
55 mm (2.2 in)
Rainy days
15 days
Humidity
71%
Windspeed
3 m/s (6 knots)
Sunshine
284 hours
Percentage Sunshine
76%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in San Juan typically stay consistent throughout March, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in March
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in March
Historical weather for San Juan in March
Browse day-by-day weather records for San Juan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Juan historical weather extremes in March
Based on 50 years of weather observations in San Juan between 1976 and 2026, these are the recorded extremes.
- The warmest day in March was on March 19, 1983, with a maximum of 34°C (93°F).
- San Juan experienced its chilliest March day on March 7, 2010, reaching only 23°C (73°F).
- The lowest overnight temperature recorded in March was 18°C (64°F) (March 2, 2013).
Best Places in Puerto Rico in March
Find out more about the weather in Puerto Rico and which places have the best travel conditions in this month. See all of Puerto Rico in March →
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What to Wear in San Juan in March
Warm weather calls for comfortable, breathable clothing in March. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. Expect water temperatures of around 26°C (79°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in San Juan in March
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Puerto Rico, check out our San Juan's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full San Juan climate overview or explore weather in Puerto Rico.
