October weather forecast
San Blas, Mexico

October, the same as September, in San Blas, Mexico, is another hot autumn month, with an average temperature ranging between min 22.7°C (72.9°F) and max 32.5°C (90.5°F).

Temperature

The weather during October records an average high-temperature of a still tropical 32.5°C (90.5°F), closely mirroring the preceding month. San Blas, during the month of October, experiences an average low-temperature of 22.7°C (72.9°F).

Heat index

Throughout October, the heat index is appraised at a scorching 44°C (111.2°F). Stay vigilant: Heat cramps along with heat exhaustion are expected. Heatstroke may follow prolonged exertion.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in October in San Blas is 75%.

Rainfall

In San Blas, in October, during 12 rainfall days, 53mm (2.09") of precipitation is typically accumulated. Throughout the year, there are 106.3 rainfall days, and 439mm (17.28") of precipitation is accumulated.

Sea temperature

In San Blas, the average seawater temperature in October is 29.9°C (85.8°F).
Note: 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.

Daylight

In October, the average length of the day in San Blas is 11h and 38min.
On the first day of the month, sunrise is at 5:52 am and sunset at 5:48 pm. On the last day of October, in San Blas, sunrise is at 6:04 am and sunset at 5:25 pm MST.

Sunshine

The average sunshine in October in San Blas, Mexico, is 8.8h.

UV index

May through July, September and October, with an average maximum UV index of 7, are months with the highest UV index in San Blas. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In October, an average UV index of 7 transforms into the following instructions:
Shun overexposure. Protection from sun ravages is indispensable. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be wary! Reflections from sand and water make UV radiation more intense.