San Diego UV index in August
Typical ultraviolet levels for San Diego during August, from the past year of data.
Very high UV. Limit sun exposure, especially during midday; protective clothing, sunscreen, and a hat are essential.
August average UTC
San Diego UV index — monthly trend
Average UV index by month over the past year, with August highlighted.
Visiting San Diego in August?
In August, San Diego's typical UV index is about 10.0303 — 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 Diego sees the strongest UV in Summer, peaking around 10.5463 in July. Plan sun protection accordingly.