August weather forecast
Caldera, Costa Rica

August, the last month of the summer in Caldera, is another warm month, with an average temperature varying between 23.4°C (74.1°F) and 29.4°C (84.9°F).

Temperature

As July transitions into August, the average high-temperature rests at a still moderately hot 29.4°C (84.9°F), maintaining a close resemblance to the previous month. The average low-temperature, in August, is a still warm 23.4°C (74.1°F).

Heat index

In August, the average heat index is appraised at a sweltering 36°C (96.8°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their 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 highly critical for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In August, the average relative humidity in Caldera, Costa Rica, is 81%.

Rainfall

In Caldera, during August, the rain falls for 26.4 days and regularly aggregates up to 213mm (8.39") of precipitation. In Caldera, Costa Rica, during the entire year, the rain falls for 218.6 days and collects up to 1456mm (57.32") of precipitation.

Daylight

In Caldera, the average length of the day in August is 12h and 26min.
On the first day of the month, sunrise is at 05:28 and sunset at 18:01. On the last day of August, in Caldera, sunrise is at 05:29 and sunset at 17:48 CST.

Sunshine

The average sunshine in August is 8.9h.

UV index

The months with the highest UV index are January through September and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: During August, 7 as the daily maximum UV index converts into the following advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun.