September weather forecast
Mata de Limon, Costa Rica

The first month of the autumn, September, is also a moderately hot month in Mata de Limon, Costa Rica, with an average temperature varying between 23.2°C (73.8°F) and 28.9°C (84°F).

Temperature

As Mata de Limon welcomes September, the average high-temperature is noted at a still moderately hot 28.9°C (84°F), closely aligning with the preceding month. Mata de Limon experiences a mean low-temperature of 23.2°C (73.8°F) during September.

Heat index

During September, the heat index is computed to be a torrid 35°C (95°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful 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.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In September, the average relative humidity in Mata de Limon is 82%.

Rainfall

In September, the rain falls for 27.7 days. Throughout September, 193mm (7.6") of precipitation is accumulated. In Mata de Limon, Costa Rica, during the entire year, the rain falls for 218.6 days and collects up to 1456mm (57.32") of precipitation.

Daylight

In Mata de Limon, the average length of the day in September is 12h and 11min.
On the first day of the month, sunrise is at 05:29 and sunset at 17:47. On the last day of September, in Mata de Limon, Costa Rica, sunrise is at 05:27 and sunset at 17:29 CST.

Sunshine

The average sunshine in September in Mata de Limon is 8.7h.

UV index

January through September and December, with an average maximum UV index of 7, are months with the highest UV index in Mata de Limon. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 7 during September translates into the following directions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.