Rio Grande Weather in March
March in Rio Grande brings high temperatures, with daytime highs of 28°C (82°F) and nights around 23°C (73°F). Quite a bit of rainfall is expected, around 60 mm (2.4 in), so pack an umbrella.
Rainfall in Rio Grande in March
Looking at the last 30 years, the data shows about 15 days with rain, averaging 60 mm (2.4 in) for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Rio Grande in March
The perfect temperature in Rio Grande in March makes it a solid month to visit, with 28°C (82°F) during the day and 23°C (73°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 23°C (73°F) overnight, nights are warm enough to sit outside comfortably in light clothing.
Sunshine in Rio Grande in March
With approximately 284 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.
Wind Speed in Rio Grande 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 you favor pleasant temperatures and minimal rainfall, March is one of the best months to visit Rio Grande.
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 Rio Grande's climate page.
Rio Grande Temperature in March
Min Temperature
23°C (73°F)
Max Temperature
28°C (82°F)
Water Temperature
26°C (79°F) *
Chance of Rain
50%
Precipitation
60 mm (2.4 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 Rio Grande typically stay consistent throughout March, with daily highs averaging around 28°C (82°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 Rio Grande in March
Browse day-by-day weather records for Rio Grande spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Rio Grande historical weather extremes in March
The extremes listed below come from historical weather data collected in Rio Grande from 1976 through 2026.
- Rio Grande recorded its highest March temperature of 35°C (95°F) on March 21, 2016.
- Rio Grande experienced its chilliest March day on March 7, 2010, reaching only 23°C (73°F).
- The coldest night in March in Rio Grande was on March 2, 2013, with a minimum of 18°C (64°F).
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 →
perfect weather
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unpleasant
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What to Wear in Rio Grande in March
Warm temperatures in March make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Rain gear is recommended, you can expect wet weather on multiple days. 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 Rio Grande 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 Rio Grande's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Rio Grande climate overview or explore weather in Puerto Rico.
