Skip to content

Weather Comparison

San Juan vs Santo Domingo

Side-by-side weather comparison for March

San Juan: 29°CSanto Domingo: 28°C403 km apart

March Weather: San Juan vs Santo Domingo

MetricSan JuanSanto DomingoBetter
Average HighHigher is warmer29°C (84°F)28°C (82°F)San Juan
Average LowHigher is milder22°C (72°F)21°C (70°F)San Juan
Rain DaysFewer is drier9 days12 daysSan Juan
PrecipitationLess is drier41 mm39 mmSanto Domingo
Sunshine HoursMore is sunnier11h/day11h/dayTie
HumidityLower is more comfortable78%78%Tie
UV IndexLower is safer66Tie
Wind SpeedCalmer is better20 km/h15 km/hSanto Domingo

Which City is Better in March?

San Juan and Santo Domingo are closely matched in March. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

San Juan can feel quite hot at 29°C, so plan for heat. Santo Domingo is also comfortable at 28°C.

For travelers who prioritize dry weather, San Juan is the stronger choice in March.

Temperature Comparison in March

San Juan reaches an average high of 29°C (84°F) and drops to 22°C (72°F) at night during March. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.

Santo Domingo averages 28°C (82°F) for the high and 21°C (70°F) for the low, with a daily range of 7°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in March.

Rainfall Comparison in March

San Juan receives approximately 41 mm of rainfall across 9 rain days during March. You can expect rain roughly every other day.

Santo Domingo sees 39 mm over 12 rain days. That makes San Juan the drier option by 3 rain days and 2 mm of total precipitation.

Both cities share similar humidity levels at 78%.

What to Pack: San Juan vs Santo Domingo

Packing for San Juan in March

Highs of 29°C, lows of 22°C, 9 rain days

  • lightweight breathable clothing
  • sunscreen SPF 50+
  • sunglasses
  • a wide-brimmed hat
  • a packable rain jacket
  • an umbrella
  • moisture-wicking fabrics

Packing for Santo Domingo in March

Highs of 28°C, lows of 21°C, 12 rain days

  • lightweight breathable clothing
  • sunscreen SPF 50+
  • sunglasses
  • a wide-brimmed hat
  • waterproof jacket
  • compact umbrella
  • waterproof shoes
  • moisture-wicking fabrics

Pack for both: lightweight breathable clothing, sunscreen SPF 50+, sunglasses, a wide-brimmed hat, moisture-wicking fabrics. These items are useful in either destination during March.

Year-Round Comparison: San Juan vs Santo Domingo

The table below shows average high temperatures and rain days for every month of the year, helping you find the best time to visit either city.March is highlighted for quick reference.

MonthSan JuanSanto Domingo
HighRainHighRain
Jan28°C11d27°C12d
Feb29°C9d28°C11d
Mar29°C9d28°C12d
Apr30°C12d29°C16d
May30°C17d29°C21d
Jun31°C14d30°C22d
Jul31°C17d30°C22d
Aug31°C19d30°C22d
Sep31°C21d30°C21d
Oct30°C21d29°C22d
Nov29°C19d28°C16d
Dec28°C13d28°C12d
29°

San Juan Weather in March

Full forecast, packing tips, and activities

28°

Santo Domingo Weather in March

Full forecast, packing tips, and activities

Frequently Asked Questions

Is San Juan warmer than Santo Domingo in March?
Yes. In March, San Juan is warmer with an average high of 29°C (84°F) compared to Santo Domingo at 28°C (82°F), a difference of 1°C.
Which city gets more rain in March, San Juan or Santo Domingo?
Santo Domingo gets more rain in March with 12 rain days and 41 mm of precipitation. San Juan is the drier option with 9 rain days.
Is it better to visit San Juan or Santo Domingo in March?
It depends on your preferences. San Juan averages 29°C and 11 hours of daily sunshine with 9 rain days. Santo Domingo averages 28°C with 11 sunshine hours and 12 rain days. If you prefer warmer weather, choose San Juan. For drier weather, San Juan is the better pick.
How far apart are San Juan and Santo Domingo?
San Juan and Santo Domingo are approximately 403 km (250 miles) apart. San Juan is located in Puerto Rico (North America) while Santo Domingo is in Dominican Republic (North America).
What is the best month to visit San Juan and Santo Domingo?
For San Juan, April tends to be the best month with 12 hours of daily sunshine and a high of 30°C. For Santo Domingo, April is typically ideal with 12 sunshine hours and 29°C highs.

Compare San Juan and Santo Domingo in Other Months

Climate data sourced from the Open-Meteo Historical Weather API, using ERA5 reanalysis data covering 30-year normals from 1991 to 2020. All temperatures shown in Celsius with Fahrenheit equivalents. Rain days count days with 1 mm or more of precipitation. Sunshine hours represent average daily values. This comparison is generated from long-term climate averages and individual trips may vary.

San Juan coordinates: 18.47°N, -66.11°E | Santo Domingo coordinates: 18.49°N, -69.93°E