September · Mexico
Best time to visit Cabo San Lucas in September Weather, crowds & prices
Weather in Cabo San Lucas in September
Average temperature 29°C, 98 mm of rain, about 28 days with 6+ hours of sunshine and 73% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
8.6/10
Ranked #12 of 12 months
- Avg temp
- 29°C
- Rainfall
- 98 mm
- Humidity
- 73%
- Days with 6h+ sun
- 28
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Cabo San Lucas scores 8.6/10 for beach and coastal travel - ranked #12 of 12. Expect around 29°C, 98 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Cabo San Lucas sits at the tip of the Baja peninsula, where desert hills meet the Sea of Cortez and the Pacific around El Arco.
September is one of the strongest months in Cabo San Lucas (12th)
Days in September average 29°C (83°F) and humidity near 73% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Budget for roughly 98 mm of rain this month — a flexible day or two helps — with about 28 days with 6+ hours of sunshine and 12.3 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Cabo San Lucas at 8.6/10 (12th of 12), just behind April at 10/10.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a packable rain layer.
Budget for low-season pricing, and crowds are light for this destination.
Frequently asked
- What is the weather like in Cabo San Lucas in September?
- In September, Cabo San Lucas averages 29°C, 98 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 8.6/10.
- Is September a good time to visit Cabo San Lucas?
- September earns a 8.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Cabo San Lucas in September?
- Expect about 98 mm of rain in September. Average humidity is 73% and there are about 28 days with 6+ hours of sunshine.
Curated in Cabo San Lucas
Tickets & experiences
Things to do in Cabo San Lucas
Cabo San Lucas, Mexico. Live activities and tours from GetYourGuide, matched to this destination.