December 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 December

Capping off the year, December ushers in the coldest weather in Cabo San Lucas. The noticeable drop in daytime and nighttime temperatures from November announces the arrival of winter. The remarkable reduction in rainfall marks a return to the city's drier climate. December's sea temperature registers a low of 24.1°C (75.4°F), indicative of the general cooling trend. As the city embraces winter, the warm and dry weather conditions render December a charming month for tourists and residents alike.

Temperature

As December begins, there is a minor decrease in the average high-temperature, softly falling from 26.8°C (80.2°F) in November to a still moderately hot 23.8°C (74.8°F). A minimal decline in temperature from daytime highs is anticipated throughout the December nights, averaging a refreshing 19.5°C (67.1°F).

Humidity

In Cabo San Lucas, Mexico, the average relative humidity in December is 67%.

Rainfall

In Cabo San Lucas, in December, it is raining for 2 days, with typically 4mm (0.16") of accumulated precipitation. Throughout the year, in Cabo San Lucas, there are 50.9 rainfall days, and 238mm (9.37") of precipitation is accumulated.

Sea temperature

In Cabo San Lucas, in December, the average water temperature is 24.1°C (75.4°F).
Note: Imagine a swim in 24.1°C (75.4°F) waters. How you'd feel depends on your cold sensitivity, the sun's rays, the caress of the wind, and the warmth enveloping you. Comparatively, Olympic swimmers train in waters between 25°C (77°F) and 28°C (82.4°F).

Daylight

The month with the shortest days is December, with an average of 10h and 48min of daylight.
On the first day of the month, sunrise is at 6:44 am and sunset at 5:33 pm. On the last day of December, in Cabo San Lucas, sunrise is at 7:00 am and sunset at 5:45 pm MST.

Sunshine

The month with the least sunshine in Cabo San Lucas is December, with an average of 7.3h of sunshine.

UV index

With an average maximum UV index of 5, December is the month with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 5 in December translates into these instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take caution! The UV rays from the Sun gain strength from sand and water reflections.
Updated: Feb 8, 2024 | Published by: Weather Atlas | Resources

Frequently asked questions

What is the usual temperature for Cabo San Lucas in December?

The average high-temperature, in December, in Cabo San Lucas, is 23.8°C (74.8°F), while the average low-temperature is 19.5°C (67.1°F). In October, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 33°C (91.4°F).

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

The average relative humidity in December in Cabo San Lucas, Mexico, is 67%.

How much does it rain in Cabo San Lucas in December?

In December, the rain falls for 2 days. Throughout December, 4mm (0.16") of precipitation is accumulated.

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

In Cabo San Lucas, Mexico, the average seawater temperature in December is 24.1°C (75.4°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24.1°C (75.4°F) water may be enjoyable.

What is the month with the shortest days in Cabo San Lucas?

The month with the shortest days is December, with an average of 10h and 48min of daylight.

How many hours of daylight does Cabo San Lucas have in December?

In Cabo San Lucas, Mexico, the average day length in December is 10h and 46min.

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

In December, on the first day of the month, sunrise is at 6:44 am and sunset at 5:33 pm. On the last day of the month, in Cabo San Lucas, sunrise is at 7:00 am and sunset at 5:45 pm MST.

What is the month with the least sunshine in Cabo San Lucas?

December has the least sunshine of the year in Cabo San Lucas, Mexico, with an average of 7.3h of sunshine.

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

The average sunshine duration in December in Cabo San Lucas is 7.3h.

When is the lowest UV index in Cabo San Lucas?

With an average maximum UV index of 5, December is the month with the lowest UV index in Cabo San Lucas.

What is the UV index intensity in December in Cabo San Lucas?

In Cabo San Lucas, Mexico, the average daily maximum UV index in December is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.

Average temperature in December
Cabo San Lucas, Mexico

Average temperature in December - Cabo San Lucas, Mexico
  • Average high temperature in December: 23.8°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 December: 19.5°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).

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Average pressure in December
Cabo San Lucas, Mexico

Average pressure in December - Cabo San Lucas, Mexico
  • Average pressure in December: 1014.9mbar

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

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Average wind speed in December
Cabo San Lucas, Mexico

Average wind speed in December - Cabo San Lucas, Mexico
  • Average wind speed in December: 9.8km/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).

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Average humidity in December
Cabo San Lucas, Mexico

Average humidity in December - Cabo San Lucas, Mexico
  • Average humidity in December: 67%

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

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Average rainfall in December
Cabo San Lucas, Mexico

Average rainfall in December - Cabo San Lucas, Mexico
  • Average rainfall in December: 4mm

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

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Average rainfall days in December
Cabo San Lucas, Mexico

Average rainfall days in December - Cabo San Lucas, Mexico
  • Average rainfall days in December: 2 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).

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Average sea temperature in December
Cabo San Lucas, Mexico

Average sea temperature in December - Cabo San Lucas, Mexico
  • Average sea temperature in December: 24.1°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).

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

Average daylight in December / Average sunshine in December - Cabo San Lucas, Mexico
  • Average daylight in December: 10h and 5min

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 December: 7h 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).

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Average sunshine days in December
Cabo San Lucas, Mexico

Average sunshine days in December - Cabo San Lucas, Mexico
  • Average sunshine days in December: 27.8 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).

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Average UV index in December
Cabo San Lucas, Mexico

Average UV index in December - Cabo San Lucas, Mexico
  • Average UV index in December: 5

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).

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Average cloud cover in December
Cabo San Lucas, Mexico

Average cloud cover in December - Cabo San Lucas, Mexico
  • Average cloud cover in December: 14

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).

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Average visibility in December
Cabo San Lucas, Mexico

Average visibility in December - Cabo San Lucas, Mexico
  • Average visibility in December: 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).

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Cabo San Lucas, Mexico

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