Weather Comparison
Side-by-side weather comparison for March
| Metric | Santo Domingo | San Juan | Better |
|---|---|---|---|
| Average HighHigher is warmer | 28°C (82°F) | 29°C (84°F)▲ | San Juan |
| Average LowHigher is milder | 21°C (70°F) | 22°C (72°F)▲ | San Juan |
| Rain DaysFewer is drier | 12 days | 9 days▲ | San Juan |
| PrecipitationLess is drier | 39 mm▲ | 41 mm | Santo Domingo |
| Sunshine HoursMore is sunnier | 11h/day | 11h/day | Tie |
| HumidityLower is more comfortable | 78% | 78% | Tie |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 15 km/h▲ | 20 km/h | Santo Domingo |
Santo Domingo and San Juan 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.
Santo Domingo sits in the comfortable travel range at 28°C. San Juan runs hot at 29°C.
For travelers who prioritize dry weather, San Juan is the stronger choice in March.
Santo Domingo reaches an average high of 28°C (82°F) and drops to 21°C (70°F) at night during March. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.
San Juan averages 29°C (84°F) for the high and 22°C (72°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.
Santo Domingo receives approximately 39 mm of rainfall across 12 rain days during March. You can expect rain roughly every other day.
San Juan sees 41 mm over 9 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%.
Highs of 28°C, lows of 21°C, 12 rain days
Highs of 29°C, lows of 22°C, 9 rain days
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.
The table below shows average high temperatures and rain days for every month. March is highlighted for quick reference.
| Month | Santo Domingo | San Juan | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 27°C | 12d | 28°C | 11d |
| Feb | 28°C | 11d | 29°C | 9d |
| Mar | 28°C | 12d | 29°C | 9d |
| Apr | 29°C | 16d | 30°C | 12d |
| May | 29°C | 21d | 30°C | 17d |
| Jun | 30°C | 22d | 31°C | 14d |
| Jul | 30°C | 22d | 31°C | 17d |
| Aug | 30°C | 22d | 31°C | 19d |
| Sep | 30°C | 21d | 31°C | 21d |
| Oct | 29°C | 22d | 30°C | 21d |
| Nov | 28°C | 16d | 29°C | 19d |
| Dec | 28°C | 12d | 28°C | 13d |
Santo Domingo Weather in March
Full forecast, packing tips, and activities
San Juan Weather in March
Full forecast, packing tips, and activities