November weather forecast
San Blas, Mexico

The last month of the autumn, November, is another tropical month in San Blas, Mexico, with an average temperature varying between 31.1°C (88°F) and 20.1°C (68.2°F).
The ideal sea water temperature of 27.4°C (81.3°F) and only 4.1 rainfall days, with 15mm (0.59") of accumulated rainfall, makes November the best time for swimming and other water activities.

Temperature

With the transition into November, San Blas notes an average high-temperature of a still tropical 31.1°C (88°F), closely resembling October. During November, an average low-temperature of 20.1°C (68.2°F) is observed.

Heat index

The average heat index in November is appraised at a very hot 37°C (98.6°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in November in San Blas is 68%.

Rainfall

In San Blas, in November, it is raining for 4.1 days, with typically 15mm (0.59") of accumulated precipitation. In San Blas, during the entire year, the rain falls for 106.3 days and collects up to 439mm (17.28") of precipitation.

Sea temperature

In San Blas, the average seawater temperature in November is 27.4°C (81.3°F).
Note: Engaging in water activities, such as swimming or diving, in temperatures from 25°C (77°F) to 29°C (84.2°F) is very pleasurable for extended periods, without any discomfort.

Daylight

In November, the average length of the day is 11h and 7min.
On the first day of November in San Blas, sunrise is at 6:04 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 5:17 pm MST.

Sunshine

The months with the least sunshine are January, November and December, with an average of 7.4h of sunshine.

UV index

January through April, August, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 6 during November translates into the following directions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Boost your sun resistance with garments that are densely woven yet spacious. Watch out! Sand and water enhance the UV exposure you receive.