San Antonio UV index in December
Typical ultraviolet levels for San Antonio during December, from the past year of data.
Moderate
San Antonio
Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
3.7
UV Index
December average UTC
Low
Moderate
High
Very High
Extreme
December UV
3.7254
Risk level
Moderate
Yearly peak
12.6002
Peak month
July
San Antonio UV index — monthly trend
Average UV index by month over the past year, with December highlighted.
Visiting San Antonio in December?
In December, San Antonio's typical UV index is about 3.7254 — a moderate risk level. Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
Across the year, San Antonio sees the strongest UV in Summer, peaking around 12.6002 in July. Plan sun protection accordingly.
