Cabo San Lucas weather in September [2026]

Month summary

Cabo San Lucas weather in September

✅ Good

🌡️ Temperature min / max

26°C – 31°C

🌧 Rainy days

27% of days

☀️ Sunshine

11.8h per day on average

🌊 🌊 Season

Autumn

⭐ ⭐ Weather score

7.9/10

📅 📅 Best month

March (9.5/10)

Quick decision

Should you visit Cabo San Lucas in September?

✅ Good

✅ Yes if: you want shoulder-season value — fewer crowds, 31°C.

❌ No if: you need maximum sunshine — some overcast days are possible.

🌧 Rain : ███░░░░░░░ 27%

🌡 Temperature : ████████░░ 31°C

☀️ Sunshine : ████████░░ 11.8h/d

Our take: September in Cabo is incredibly warm and sunny—perfect if you love heat and don't mind occasional rain showers. You'll get nearly 12 hours of daily sunshine and just enough moisture to keep things lush, making it ideal for beach lovers who appreciate warm water and don't require totally dry weather. It's genuinely great value season too, since fewer crowds mean better hotel rates.

By trip type

Cabo San Lucas in September by trip type

🏙️ 🏙️ City break / culture : ✅ Good
🚶 🚶 Outdoor activities : ✅ Good
🏖️ Beach / swimming : ✅ Good
💰 💰 Budget : ✅ Low season

Local context

What to expect in September

🎯 Water at 28°C and lively beaches — September is peak swimming season in Cabo San Lucas Autumn in Cabo San Lucas is often underrated: 31°C, golden light and declining crowds. An interesting window. Expect rain on 27% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if March (9.5/10) remains theoretically better.

Browse by month

All months for Cabo San Lucas

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Annual table

Month-by-month comparison

Month	Min °C	Max °C	Rain %	Precip mm	Sun h/d	Score
☀️ January	16°C	25°C	1%	0.1	10.7h	8.9/10
☀️ February	17°C	26°C	2%	0.2	11.0h	9.1/10
☀️ March	18°C	28°C	0%	0.0	11.3h	9.5/10
☀️ April	20°C	29°C	0%	0.0	12.4h	9.4/10
☀️ May	21°C	30°C	1%	0.0	12.8h	9.2/10
☀️ June	24°C	31°C	5%	0.6	13.0h	8.8/10
☀️ July	26°C	33°C	8%	0.4	13.0h	8.1/10
☀️ August	27°C	33°C	23%	2.6	12.5h	7.6/10
🌤️ September	26°C	31°C	27%	3.4	11.8h	7.9/10
☀️ October	25°C	31°C	10%	1.1	11.4h	8.4/10
☀️ November	21°C	29°C	4%	0.4	10.4h	8.9/10
☀️ December	18°C	27°C	3%	0.3	10.4h	9.1/10

Ideal Fair Challenging climate ◀ Current month · Source Open-Meteo · 10 years

📊 Data source Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Cabo San Lucas averages 31°C, 27% rainy days and 11.8h of sunshine per day. Overall weather score: 7.9/10. See methodology →

Comparison