DermUV

Monthly UV Index

Cabo San Lucas, Baja California Sur

Monthly UV Index in Cabo San Lucas, Baja California Sur

Average UV in Cabo San Lucas is highest during Apr, May, Jun, Jul, Aug and lowest during Jan, Dec. Use this month-by-month guide to plan sunscreen, shade, clothing, and outdoor timing.

Cabo San Lucas UV Index by Month

Average UV in Cabo San Lucas peaks during Apr, May, Jun, Jul, Aug, when high sun angles combine with longer days. The deceptive months are usually early spring and early fall, when air temperatures stay mild but UV climbs into the high category by mid-morning. Locals often skip sunscreen on cool, overcast days, which is exactly when UV-A continues to drive long-term skin damage. UV in Cabo San Lucas is lowest during Jan, Dec.

MonthAvg UVRisk
Jan8.0Very High
Feb9.3Very High
Mar10.7Very High
Apr11.8Extreme
May12.2Extreme
Jun12.2Extreme
Jul12.2Extreme
Aug12.0Extreme
Sep11.2Extreme
Oct9.8Very High
Nov8.3Very High
Dec7.6High

Highest UV Months in Cabo San Lucas

Peak monthly UV reaches about 12.2 in Apr, May, Jun, Jul, Aug. That is the period when unprotected skin burns fastest, especially near solar noon. Check the live UV index in Cabo San Lucas, Baja California Sur before outdoor plans because clouds, ozone, altitude, and reflection can move the real-time number above or below the monthly average.

Lowest UV Months in Cabo San Lucas

Monthly UV is lowest in Jan, Dec, around 7.6 on this model. Lower UV does not mean zero UV. UVA can still pass through cloud and glass, and snow, water, or pale concrete can reflect UV back onto exposed skin.

Monthly Sunscreen Guidance for Cabo San Lucas

For months that average UV 3 or higher, broad-spectrum SPF 30+, sunglasses, shade, and UPF clothing are the practical baseline. For months in the very-high or extreme range, reapply every two hours outdoors and after swimming or heavy sweat. These are educational estimates, not personal medical advice.

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