San Antonio UV index in January
Typical ultraviolet levels for San Antonio during January, 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.
3.5
UV Index
January average UTC
Low
Moderate
High
Very High
Extreme
January UV
3.519
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 January highlighted.
Visiting San Antonio in January?
In January, San Antonio's typical UV index is about 3.519 — 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.
