August weather forecast
Sámara, Costa Rica

August continues to carry forward the rainy season in Sámara, Costa Rica. Relative humidity remains high at 83%, reflecting the city's enduring rainy disposition. Despite the overall wet environment, sea temperatures manage to retain a consistent warmth, encouraging water-related activities. The average daily sunshine hours submit to a slight decrease yet daylight hours remain abundant. It is worth mentioning that the UV index of 7 implies vigilance against skin damage.

Temperature

Sámara observes a minor difference in average high-temperatures between July's 29.7°C (85.5°F) and August's 29.4°C (84.9°F). Nighttime temperatures in August average to a still warm 24.2°C (75.6°F).

Heat index

The heat index in August is calculated to be a very hot 37°C (98.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In August, the average relative humidity is 83%.

Rainfall

In Sámara, in August, it is raining for 25.8 days, with typically 153mm (6.02") of accumulated precipitation. Throughout the year, in Sámara, there are 205 rainfall days, and 1087mm (42.8") of precipitation is accumulated.

Sea temperature

In Sámara, the average seawater temperature in August is 29°C (84.2°F).
Note: Swimming, diving, and other activities in water temperatures between 25°C (77°F) and 29°C (84.2°F) are thought to be quite enjoyable and satisfying for extended periods, with no discomfort.

Daylight

The average length of the day in August in Sámara, Costa Rica, is 12h and 26min.
On the first day of the month, sunrise is at 05:32 and sunset at 18:04. On the last day of August, sunrise is at 05:32 and sunset at 17:51 CST.

Sunshine

The average sunshine in August is 8.8h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Sámara. The months with the lowest UV index in Sámara, Costa Rica, are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 7 in August transforms into the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Stay cautious! Sand and water reflections increase UV radiation potency.