September weather forecastCampeche, Mexico

Weather in September

As Campeche, Mexico moves into the back end of the year, September throws up no surprises weather-wise. The city continues to experience heavy rain combined with high temperatures, a characteristic feature of the rainy season. This rainy period peaks at a whopping 79mm (3.11") of rainfall in September. The tail-end of the rainy season in sight brings the anticipation of lower rainfall in October.

Temperature

September's weather records an average high-temperature of a still tropical 32.3°C (90.1°F), showing little deviation from August. In Campeche, the average nighttime temperature during September is a moderately hot 24.4°C (75.9°F).

Heat index

In September, the average heat index is computed to be a burning hot 45°C (113°F). Stay on guard: Heat exhaustion and heat cramps are predicted. Ongoing effort can cause heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

September and October, with an average relative humidity of 78%, are the most humid months.

Rainfall

In Campeche, in September, it is raining for 21.6 days, with typically 79mm (3.11") of accumulated precipitation. In Campeche, during the entire year, the rain falls for 149.4 days and collects up to 548mm (21.57") of precipitation.

Sea temperature

The month with the warmest seawater is September, with an average sea temperature of 29.4°C (84.9°F).
Note: Water activities in surface temperatures between 25°C (77°F) and 29°C (84.2°F) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

In September, the average length of the day is 12h and 15min.
On the first day of the month, sunrise is at 5:46 am and sunset at 6:17 pm. On the last day of September, sunrise is at 5:52 am and sunset at 5:50 pm CST.

Sunshine

The average sunshine in September is 10.3h.

UV index

February through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Caution! The mirror effect of sand and water ups the UV radiation strength.