San Juan Weather in May
Puerto Rico · May climate averages and travel tips
Avg high30°C (85°F)
Avg low25°C (78°F)
Rainfall124 mm (4.9 in)
RatingPoor 3.7/10
San Juan in May sees daytime temperatures around 30°C (85°F), dropping to about 25°C (78°F) at night. The month is wet, with about 124 mm (4.9 in) of rain spread over 22 days. Humidity averages 77%, so it feels sticky and hotter than the thermometer suggests. You get roughly 12.9 hours of daylight and frequently cloudy skies.
Is May a good time to visit San Juan?
May is not the best time to visit San Juan (3.7/10) mainly because of the rain. The weather is much better in January to March.
May weather at a glance
| Average high | 30°C (85°F) |
|---|---|
| Average low | 25°C (78°F) |
| Daily mean | 27°C (81°F) |
| Rainfall | 124 mm (4.9 in) |
| Rainy days (1 mm+) | 22 |
| Humidity | 77% |
| Cloud cover | 73% |
| Daylight | 12.9 hours |
| Est. sunshine | 3.8 hours/day |
| Wind | 13.3 km/h |
| vs April | About as warm as April, with 53 mm more rain. |
What to pack for San Juan in May
- light, breathable clothing
- sunscreen and a hat
- an umbrella or rain jacket
San Juan weather in other months
Jan28°C / 24°C43 mmExcellentFeb28°C / 23°C40 mmExcellentMar29°C / 24°C52 mmExcellentApr29°C / 24°C71 mmGoodMay30°C / 25°C124 mmPoorJun30°C / 26°C91 mmPoorJul30°C / 27°C102 mmPoorAug31°C / 27°C132 mmPoorSep30°C / 27°C157 mmPoorOct30°C / 26°C169 mmPoorNov29°C / 26°C142 mmPoorDec28°C / 24°C55 mmGood
← AprilBest time to visit San JuanJune →
Better weather in May nearby
- Los Angeles, California25°C · 8 mm · Excellent
- Cabo San Lucas28°C · 1 mm · Excellent
- San Diego, California24°C · 8 mm · Excellent
- San Francisco, California19°C · 18 mm · Excellent
- Tijuana24°C · 8 mm · Excellent
- Denver, Colorado23°C · 65 mm · Excellent
Nearby in May
- Charlotte Amalie28°C · 90 mm
- Road Town28°C · 65 mm
- Punta Cana28°C · 82 mm
- Marigot28°C · 62 mm
- The Valley28°C · 62 mm
- Philipsburg28°C · 62 mm
Where else is good in May? See where to go in May.