September weather forecast
Cahuita, Costa Rica

September in Cahuita offers relief from the rains with a significant drop in precipitation to 84mm (3.31"). The climate remains consistent with the tropical signature of warm temperatures and controlled humidity. Clear skies allow more sunshine hours, illuminating Cahuita in its best light. The wind, a constant friend, circulates fresh air and maintains comfort despite the heat. The reduced rainfall affords tourists an optimal opportunity to take in the sights and sounds of Cahuita’s culture and nature.

Temperature

In Cahuita, Costa Rica, September is identified by the highest average temperatures, reaching a peak of 30°C (86°F) and a low of 25°C (77°F).

Heat index

The average heat index in September is estimated at a sweltering 35°C (95°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The least humid month in Cahuita is September, with an average relative humidity of 71%.

Rainfall

In Cahuita, during September, the rain falls for 19.2 days and regularly aggregates up to 84mm (3.31") of precipitation. Throughout the year, in Cahuita, there are 241.5 rainfall days, and 1580mm (62.2") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 11min.
On the first day of the month, sunrise is at 05:22 and sunset at 17:40. On the last day of September, in Cahuita, sunrise is at 05:19 and sunset at 17:22 CST.

Sunshine

With an average of 9.2h of sunshine, September has the most sunshine of the year in Cahuita, Costa Rica.

UV index

March through November, with an average maximum UV index of 7, are months with the highest UV index in Cahuita. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during September leads to these instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Experience reduced UV exposure by about half when donning a wide-brim hat.