August weather forecast
Upala, Costa Rica

The weather for August in Upala, Costa Rica, slightly deviates from July trends, alluding to subtle transformations leading up to September. Marginally lower rainfall in August contrasts the preceding wet months with heavy downpours. While humidity and cloud coverage remain high, the overall temperature exhibits a minor increase. Notwithstanding, a remarkably stable daylight duration of 12.5 hours acts as a transition to the subsequent month.

Temperature

August reports an average high-temperature of a still moderately hot 29.6°C (85.3°F), slightly varied from July's 28.9°C (84°F). During August, an average low-temperature of 24°C (75.2°F) is observed in Upala.

Heat index

August's average heat index is appraised at a very hot 38°C (100.4°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In August, the average relative humidity in Upala is 84%.

Rainfall

In Upala, during August, the rain falls for 29.3 days and regularly aggregates up to 226mm (8.9") of precipitation. Throughout the year, there are 295.8 rainfall days, and 1656mm (65.2") of precipitation is accumulated.

Daylight

In August, the average length of the day is 12h and 28min.
On the first day of August in Upala, sunrise is at 05:28 and sunset at 18:04. On the last day of the month, sunrise is at 05:30 and sunset at 17:50 CST.

Sunshine

In Upala, the average sunshine in August is 7.4h.

UV index

The months with the highest UV index in Upala, Costa Rica, are March through June, August and September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 7 during August translates into the following guidance:
Guard against overexposure. Protection from sun-induced harm is essential. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.