June weather forecast
San Juan, Dominican Republic

San Juan has a rich, warm climate in June. Compared to May, June doesn't bring many changes in terms of temperature or daylight hours. However, June locks the trend of high rainfall quantities, establishing the initiation of the wet season. The city enjoys eight hours of sunshine per day, harboring warm and comfortable weather. Despite the regular showers, the warm weather continues to lure tourists.

Temperature

June brings an average high-temperature of a still hot 31°C (87.8°F), aligning with the conditions of the preceding month. June nights in San Juan experience a distinct temperature drop from the daily highs, with an average low-temperature of 19°C (66.2°F).

Rainfall

In San Juan, during June, the rain falls for 12 days and regularly aggregates up to 109mm (4.29") of precipitation. Throughout the year, there are 154 rainfall days, and 1160mm (45.67") of precipitation is accumulated.

Daylight

The month with the longest days is June, with an average of 13h and 12min of daylight.
On the first day of the month, sunrise is at 06:07 and sunset at 19:19. On the last day of June, sunrise is at 06:11 and sunset at 19:26 AST.

Sunshine

The months with the most sunshine are February through April, June through August, with an average of 8h of sunshine.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index in San Juan. A UV Index value of 11, and more, symbolizes an extreme health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 12 in June, converts into the following recommendations:
Carry out all vital precautions. Protection from sun exposure is a must. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Broad-spectrum sunscreen with an SPF of 30 or above should be applied generously and reapplied every two hours and right after any outdoor activity or swim.