September weather forecast
Big Creek, Belize

September brings a slight cool-off to Big Creek, Belize, from August's humidity and heat. However, the relative humidity holds constant at 78%, facilitating warmth retention. With the heralding of autumn, the daylight hours gradually taper off, creating smaller windows for outdoor activities. The wind speed slacks compared to August, contributing to the overall calmness. Additionally, the month's improved visibility marks a shift towards clearer skies and fewer clouds, which gives the city its crispy autumnal ambiance.

Temperature

Big Creek's warmest weather arrives in September, when temperatures average a high of 31.3°C (88.3°F) and a low of 24.3°C (75.7°F).

Heat index

The heat index value for September is estimated at an extremely hot 41°C (105.8°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In September, the rain falls for 25.8 days. Throughout September, 122mm (4.8") of precipitation is accumulated. Throughout the year, there are 293.1 rainfall days, and 1298mm (51.1") of precipitation is accumulated.

Sea temperature

May through November, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of September, sunrise is at 05:40 and sunset at 18:06. On the last day of the month, sunrise is at 05:43 and sunset at 17:43 CST.

Sunshine

The average sunshine in September is 9.4h.

UV index

March through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during September translates into these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Watch out! Reflections from sand and water can surge UV radiation exposure.