Weather Comparison
San Juan vs Santo Domingo
Side-by-side weather comparison for August
August Weather: San Juan vs Santo Domingo
| Metric | San Juan | Santo Domingo | Better |
|---|---|---|---|
| Average HighHigher is warmer | 31°C (88°F)▲ | 30°C (86°F) | San Juan |
| Average LowHigher is milder | 25°C (77°F)▲ | 23°C (73°F) | San Juan |
| Rain DaysFewer is drier | 19 days▲ | 22 days | San Juan |
| PrecipitationLess is drier | 82 mm▲ | 131 mm | San Juan |
| Sunshine HoursMore is sunnier | 12h/day▲ | 11h/day | San Juan |
| HumidityLower is more comfortable | 78% | 78% | Tie |
| UV IndexLower is safer | 9 | 9 | Tie |
| Wind SpeedCalmer is better | 21 km/h | 13 km/h▲ | Santo Domingo |
Which City is Better in August?
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, San Juan edges ahead as the better destination in August. San Juan offers 12 hours of daily sunshine with only 19 rain days, while Santo Domingo sees 11 sunshine hours and 22 rain days.
San Juan can feel quite hot at 31°C, so plan for heat. Santo Domingo runs hot at 30°C.
For travelers who prioritize dry weather, San Juan is the stronger choice in August. San Juan receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.
Temperature Comparison in August
San Juan reaches an average high of 31°C (88°F) and drops to 25°C (77°F) at night during August. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.
Santo Domingo averages 30°C (86°F) for the high and 23°C (73°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 August.
Rainfall Comparison in August
San Juan receives approximately 82 mm of rainfall across 19 rain days during August. Rain is frequent, so waterproof gear is essential.
Santo Domingo sees 131 mm over 22 rain days. That makes San Juan the drier option by 3 rain days and 49 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 August
Highs of 31°C, lows of 25°C, 19 rain days
- ✓lightweight breathable clothing
- ✓sunscreen SPF 50+
- ✓sunglasses
- ✓a wide-brimmed hat
- ✓waterproof jacket
- ✓compact umbrella
- ✓waterproof shoes
- ✓moisture-wicking fabrics
Packing for Santo Domingo in August
Highs of 30°C, lows of 23°C, 22 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, waterproof jacket, compact umbrella, waterproof shoes, moisture-wicking fabrics. These items are useful in either destination during August.
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.August is highlighted for quick reference.
| Month | San Juan | Santo Domingo | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 28°C | 11d | 27°C | 12d |
| Feb | 29°C | 9d | 28°C | 11d |
| Mar | 29°C | 9d | 28°C | 12d |
| Apr | 30°C | 12d | 29°C | 16d |
| May | 30°C | 17d | 29°C | 21d |
| Jun | 31°C | 14d | 30°C | 22d |
| Jul | 31°C | 17d | 30°C | 22d |
| Aug | 31°C | 19d | 30°C | 22d |
| Sep | 31°C | 21d | 30°C | 21d |
| Oct | 30°C | 21d | 29°C | 22d |
| Nov | 29°C | 19d | 28°C | 16d |
| Dec | 28°C | 13d | 28°C | 12d |
San Juan Weather in August
Full forecast, packing tips, and activities
Santo Domingo Weather in August
Full forecast, packing tips, and activities