Cabo San Lucas, Mexico Climate & Monthly Averages

The climate of Cabo San Lucas

Rain is the exception in Cabo San Lucas. The city collects about 11.3 inches (287 mm) across 28 wet days in a typical year, which leaves the sky clear for most of it - 11.3 hours of sunshine a day on average. Highs run from 78°F (26°C) in January to 90°F (32°C) in August.

Climate quick facts

• Hottest month: August - highs near 90°F (32°C)
• Coldest month: January - highs near 78°F (26°C)
• Decade extremes (2015-2024): 100°F (38°C) high · 50°F (10°C) low
• Wettest month: September (8 rainy days) · Sunniest: July (12.7 h sun/day)
• Climate type: tropical wet-and-dry
• Annual swing: 8°C between the average warmest and coolest month · day to night: 8°C
• Months averaging 30°C or hotter: 5
• Average humidity: 60%

Temperatures through the year

January bottoms out at 78°F (26°C) in daylight, 62°F (17°C) after dark. Warmth peaks in August: highs of 90°F (32°C), lows of 80°F (27°C). The gridded 2015-2024 daily record for this location tops out at 100°F (38°C) and bottoms at 50°F (10°C) - decade extremes, not all-time station records. September is the wettest month at 4.0 inches (102 mm) over 8 days; April is the driest.

Rain, sun and snow

8 months average under 20 mm of rain, the longest unbroken stretch running November through May. Relative humidity averages 60% across the year, drier than about 85% of the cities we track. Between the average August and the average January lie 8°C, a narrower spread than about 79% of the cities we track.

How Cabo San Lucas compares

• The city sees 11.3 hours of sunshine on an average day - sunnier than any other city in our 3496-city dataset.
• 75% of the year's precipitation falls in its wettest three months - more seasonal than any other city in our 3496-city dataset.
• Rain or snow reaches the ground on 28 days a year - fewer wet days than all but 4% of the 3496 cities we track.

Ranked against every city in our dataset, each measured on the same ten-year window.

Best time to visit Cabo San Lucas

December to April is the sweet spot for Cabo San Lucas - temperatures sit either side of the peak heat rather than in it. Expect 80°F (27°C) in the afternoon and around 1 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in December.

Pack for Cabo San Lucas with lightweight, breathable clothing and serious sun protection. August nights average 80°F (27°C), so evenings rarely match the afternoons.