Cabo San Lucas weather in September 2025

Q: How hot is it in Cabo San Lucas in September?

Daytime temperatures usually reach 32°C in Cabo San Lucas in September with very high heat and humidity, falling to 23°C at night.

Q: How sunny is it in Cabo San Lucas in September?

There are normally 7 hours of bright sunshine each day in Cabo San Lucas in September - that's 54% of daylight hours.

Q: How warm is the sea around Cabo San Lucas in September?

The average sea temperature around Cabo San Lucas in September is 29°C.

Q: Does it ever rain in Cabo San Lucas in September?

There are usually 5 days with some rain in Cabo San Lucas in September and the average monthly rainfall is 100mm.

Q: What is the chance of a cyclone in Cabo San Lucas in September?

On average 2.6 days in September in Cabo San Lucas are likely to be affected by the passage of one or more tropical storms.

Expect 90°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Cabo San Lucas in September. Check more long-term weather averages for Cabo San Lucas in September before you book your next holiday to Mexico in 2025/2026.

90
90°F max day temperature
7
7 hours of sunshine per day
5
5 days with some rainfall
73
73°F min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
3.9
3.9 inches of monthly rainfall
11
11 (Extreme) UV index
84
84°F sea temperature

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Destination

The September weather guide for Mexico (Cabo San Lucas) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

More about Mexico

How hot is it in Cabo San Lucas in September?

Daytime temperatures usually reach 90°F in Cabo San Lucas in September with very high heat and humidity, falling to 73°F at night.

How sunny is it in Cabo San Lucas in September?

There are normally 7 hours of bright sunshine each day in Cabo San Lucas in September - that's 54% of daylight hours.

How warm is the sea around Cabo San Lucas in September?

The average sea temperature around Cabo San Lucas in September is 84°F.

Does it ever rain in Cabo San Lucas in September?

There are usually 5 days with some rain in Cabo San Lucas in September and the average monthly rainfall is 3.9 inches.

What is the chance of a hurricane in Cabo San Lucas in September?

On average 2.6 days in September in Cabo San Lucas are likely to be affected by the passage of one or more tropical storms.

Cabo San Lucas September sunrise & sunset times

Browse the sunrise and sunset times for Cabo San Lucas in September 2025. Select a month to view Cabo San Lucas sunrise and sunset times for the next 12 months.

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

Date	Sunrise times	Sunset times
Monday, 1st September 2025	06:02	18:36
Monday, 15th September 2025	06:06	18:23
Tuesday, 30th September 2025	06:11	18:08

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Mexico - quick facts
Flight time^✝	10.5 to 15 hours
Time difference	UK -5 to -8 hours
Language(s)	Spanish
Currency	Mexican Peso
Electricity	A + B plug (127V)
Driving side	Right
Why visit?	Beaches Culture Nature Nightlife
Tourist info	Mexico Ministry of Tourism