March weather forecast
San Juan, Dominican Republic

Splendid weather characterizes March in San Juan. It brings an increase in temperature compared to the earlier months, signalling the onset of warmer days. With an impressive 12 UV index, one must remember to protect against the powerful sun. As one moves towards the latter part of the month, days start to get longer and nights shorter. Recognizing this upward trend in temperature, it becomes clear that the summer heat is on its way.

Temperature

The high-temperature in San Juan for March, being a still hot 30°C (86°F), harmonizes with the reading from the preceding month. In stark contrast to the day's heat, the temperature dips to an average of 16°C (60.8°F) during March nights.

Rainfall

In March, in San Juan, the rain falls for 10 days. Throughout March, 36mm (1.42") of precipitation is accumulated. In San Juan, Dominican Republic, during the entire year, the rain falls for 154 days and collects up to 1160mm (45.67") of precipitation.

Daylight

In San Juan, the average length of the day in March is 12h and 3min.
On the first day of March in San Juan, sunrise is at 07:03 and sunset at 18:51. On the last day of the month, sunrise is at 06:39 and sunset at 18:58 AST.

Sunshine

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

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The UV index of 12 in March translates into these instructions:
Carry out all important precautions, unprotected skin could get burns in no time. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Regularly apply and reapply a broad-spectrum sunscreen with a minimum SPF 30 every two hours, or straight after swimming or an outdoor activity.