September weather forecast
La Cruz, Costa Rica

September in La Cruz ushers in an atmosphere of change, with a receding monsoon and a gradual return to clear skies. Despite the paradigm shift towards the dry season, this month possesses high levels of rainfall, second only to August. Data indicates a monthly rain measure of 81mm (3.19"), thereby signaling a slight reduction from the preceding month. As the city undergoes the subtle transition, the weather begins to stabilize, gearing up for the upcoming dry spell. Though still rainy, September in La Cruz holds the promise of brighter days ahead.

Temperature

An average high-temperature of a still tropical 30.1°C (86.2°F) marks September, exhibiting a close resemblance to the conditions in August. La Cruz maintains a minor drop in temperature during September nights, with averages of 25.2°C (77.4°F).

Heat index

In September, the average heat index is appraised at a torrid 38°C (100.4°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In La Cruz, the average relative humidity in September is 79%.

Rainfall

In La Cruz, in September, it is raining for 23.5 days, with typically 81mm (3.19") of accumulated precipitation. Throughout the year, in La Cruz, Costa Rica, there are 237.9 rainfall days, and 717mm (28.23") of precipitation is accumulated.

Daylight

In La Cruz, Costa Rica, the average length of the day in September is 12h and 11min.
On the first day of September, sunrise is at 05:32 and sunset at 17:52. On the last day of the month, sunrise is at 05:31 and sunset at 17:33 CST.

Sunshine

In September, the average sunshine in La Cruz is 8.3h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in La Cruz, Costa Rica. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 7 during September translates into these guidelines:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.