San Juan Weather in June
June in San Juan brings very high temperatures around 31°C (88°F) during the day, dropping to 25°C (77°F) at night, with quite a bit of rainfall expected, averaging around 92 mm (3.6 in) for the month.
Rainfall in San Juan in June
You can typically expect 17 days of rain this month, averaging around 92 mm (3.6 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in San Juan in June
June in San Juan brings very high temperatures, with highs of 31°C (88°F) and nights around 25°C (77°F). It's usually most comfortable outside during the morning and later in the day. Nights stay warm at around 25°C (77°F), so light bedding and good ventilation are worth thinking about.
Sunshine in San Juan in June
Expect a lot of sunshine this month, with about 259 hours of sun. These sunny conditions add to the overall experience.
Wind Speed in San Juan in June
Wind speeds average 3 m/s (6 knots) during June. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.
Average water temperature in June
The water is 28°C (82°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.If you prefer enjoying temperate temperatures and rain-free days, January, February, March and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 San Juan's climate page.
San Juan Temperature in June
Min Temperature
25°C (77°F)
Max Temperature
31°C (88°F)
Water Temperature
28°C (82°F)
Chance of Rain
56%
Precipitation
92 mm (3.6 in)
Rainy days
17 days
Humidity
76%
Windspeed
3 m/s (6 knots)
Sunshine
259 hours
Percentage Sunshine
65%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in San Juan typically stay consistent throughout June, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in June
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 June
Historical weather for San Juan in June
Browse day-by-day weather records for San Juan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Juan historical weather extremes in June
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in San Juan.
- On June 5, 1988, temperatures climbed to 36°C (97°F), marking the warmest June day on record.
- San Juan experienced its chilliest June day on June 19, 1993, reaching only 24°C (75°F).
- The coldest night in June in San Juan was on June 1, 1989, with a minimum of 22°C (72°F).
Best Places in Puerto Rico in June
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 June →
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What to Wear in San Juan in June
Warm but pleasant conditions in San Juan in June. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in San Juan in June
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 San Juan's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full San Juan climate overview or explore weather in Puerto Rico.
