San Juan UV index in March
Typical ultraviolet levels for San Juan during March, from the past year of data.
Very High
San Juan
Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
10.5
UV Index
March average UTC
Low
Moderate
High
Very High
Extreme
March UV
10.464
Risk level
Very High
Yearly peak
13.787
Peak month
August
San Juan UV index — monthly trend
Average UV index by month over the past year, with March highlighted.
Visiting San Juan in March?
In March, San Juan's typical UV index is about 10.464 — a very high risk level. Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
Across the year, San Juan sees the strongest UV in Summer, peaking around 13.787 in August. Plan sun protection accordingly.
