September weather forecast
Cabo San Lucas, Mexico

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Stunning rocks on the water in Land
Stunning rocks on the water in Land's End, in Cabo San Lucas, Mexico

Weather in September

September is the second consecutive month with considerable rainfall in Cabo San Lucas. Peaks in daytime temperature, sea temperature, and humidity coincide with a significant rise in rainfall from August, registering 81mm (3.19"). Despite being the wettest month of the year, September retains Cabo San Lucas' warm and tropical allure. The prevailing climate exhibits a continuation of the wet season that began in July. Consequently, an eclectic mix of sunshine, rain, and warmth characterizes this month.

Temperature

September's onset sees an average high-temperature of a still warm 29°C (84.2°F), exhibiting a slight fluctuation from the previous month. Throughout September, a minimal difference from peak daytime temperatures is noted, marking a steady low-temperature average of 25.7°C (78.3°F).

Heat index

September's mean heat index is appraised at a tropical 34°C (93.2°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The most humid month in Cabo San Lucas, Mexico, is September, with an average relative humidity of 78%.

Rainfall

The month with the most rainfall in Cabo San Lucas, Mexico, is September, when the rain falls for 10.7 days and typically aggregates up to 81mm (3.19") of precipitation.

Sea temperature

September is the month with the warmest seawater in Cabo San Lucas, with an average sea temperature of 29.5°C (85.1°F).
Note: For swimming, diving, or other water activities, the temperature range of 25°C (77°F) to 29°C (84.2°F) is perceived as exceptionally enjoyable and comfortable even for prolonged periods.

Daylight

In September, the average length of the day is 12h and 16min.
On the first day of September in Cabo San Lucas, sunrise is at 6:02 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 6:07 pm MST.

Sunshine

In Cabo San Lucas, the average sunshine in September is 9.3h.

UV index

The months with the highest UV index in Cabo San Lucas are June through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 7 during September translates into the following guidance:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Caution! The Sun's UV rays become stronger due to reflections from water and sand.

Frequently asked questions

How hot is September in Cabo San Lucas?

The high-temperature, in September, in Cabo San Lucas, records 29°C (84.2°F), while the low-temperature is 25.7°C (78.3°F). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 34°C (93.2°F).

What is the most humid month in Cabo San Lucas?

The most humid month in Cabo San Lucas, Mexico, is September, with an average relative humidity of 78%.

What is the average humidity in September in Cabo San Lucas?

In Cabo San Lucas, the average relative humidity in September is 78%.

What is the rainiest month in Cabo San Lucas?

September is the month with the most rainfall in Cabo San Lucas. Rain falls for 10.7 days and accumulates 81mm (3.19") of precipitation.

How many days does it rain in September in Cabo San Lucas?

In September, in Cabo San Lucas, Mexico, the rain falls for 10.7 days. Throughout September, 81mm (3.19") of precipitation is accumulated.

What is the month with the warmest sea water in Cabo San Lucas?

The month with the warmest seawater is September, with an average sea temperature of 29.5°C (85.1°F).

What is the water temperature in September in Cabo San Lucas?

In Cabo San Lucas, Mexico, the average seawater temperature in September is 29.5°C (85.1°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in September in Cabo San Lucas?

In Cabo San Lucas, the average day length in September is 12h and 16min.

When is the sunrise / sunset in September in Cabo San Lucas?

In September, on the first day of the month, sunrise is at 6:02 am and sunset at 6:36 pm. On the last day of the month, in Cabo San Lucas, Mexico, sunrise is at 6:11 am and sunset at 6:07 pm MST.

How many hours of sunshine does Cabo San Lucas have in September?

The average sunshine duration in September in Cabo San Lucas is 9.3h.

When is the highest UV index in Cabo San Lucas?

June through October, with an average maximum UV index of 7, are months with the highest UV index in Cabo San Lucas, Mexico.

What is the UV index reading in September in Cabo San Lucas?

In Cabo San Lucas, Mexico, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.

Average temperature in September
Cabo San Lucas, Mexico

Average temperature in September - Cabo San Lucas, Mexico
  • Average high temperature in September: 29°C

The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is February (23.2°C).

  • Average low temperature in September: 25.7°C

The month with the highest average low temperature is August (26.3°C).
The coldest month (with the lowest average low temperature) is January (18.6°C).

Average pressure in September
Cabo San Lucas, Mexico

Average pressure in September - Cabo San Lucas, Mexico
  • Average pressure in September: 1009.7mbar

The month with the highest atmospheric pressure is January (1015.7mbar).
The month with the lowest atmospheric pressure is September (1009.7mbar).

Average wind speed in September
Cabo San Lucas, Mexico

Average wind speed in September - Cabo San Lucas, Mexico
  • Average wind speed in September: 12.7km/h

The windiest month (with the highest average wind speed) is May (16.1km/h).
The calmest months (with the lowest average wind speed) are November and December (9.8km/h).

Average humidity in September
Cabo San Lucas, Mexico

Average humidity in September - Cabo San Lucas, Mexico
  • Average humidity in September: 78%

The month with the highest relative humidity is September (78%).
The month with the lowest relative humidity is March (62%).

Average rainfall in September
Cabo San Lucas, Mexico

Average rainfall in September - Cabo San Lucas, Mexico
  • Average rainfall in September: 81mm

The wettest month (with the highest rainfall) is September (81mm).
The driest months (with the least rainfall) are March and April (0mm).

Average rainfall days in September
Cabo San Lucas, Mexico

Average rainfall days in September - Cabo San Lucas, Mexico
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is August (12.3 days).
The months with the least rainy days are April and May (1 days).

Average sea temperature in September
Cabo San Lucas, Mexico

Average sea temperature in September - Cabo San Lucas, Mexico
  • Average sea temperature in September: 29.5°C

The best month for swimming (with the highest average sea temperature) is September (29.5°C).
The coldest month (with the lowest average sea temperature) is March (21.4°C).

Average daylight in September /
Average sunshine in September
Cabo San Lucas, Mexico

Average daylight in September / Average sunshine in September - Cabo San Lucas, Mexico
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).

  • Average sunshine in September: 9h and 2min

The months with the most sunshine are May and June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 18min).

Average sunshine days in September
Cabo San Lucas, Mexico

Average sunshine days in September - Cabo San Lucas, Mexico
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is March (30.1 days).
The month with the least sunshine days is August (16.2 days).

Average UV index in September
Cabo San Lucas, Mexico

Average UV index in September - Cabo San Lucas, Mexico
  • Average UV index in September: 7

The months with the highest UV index are June, July, August, September and October (UV index 7).
The month with the lowest UV index is December (UV index 5).

Average cloud cover in September
Cabo San Lucas, Mexico

Average cloud cover in September - Cabo San Lucas, Mexico
  • Average cloud cover in September: 23

The month with the most cloud cover is September (Cloud cover 23).
The months with the least cloud cover are May and June (Cloud cover 8).

Average visibility in September
Cabo San Lucas, Mexico

Average visibility in September - Cabo San Lucas, Mexico
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

Cabo San Lucas, Mexico

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