March weather forecast
Zancudo, Costa Rica

The first month of the spring, March, is still a tropical month in Zancudo, Costa Rica, with an average temperature varying between 21.6°C (70.9°F) and 31.7°C (89.1°F).

Temperature

March proves to be the warmest month, recording an average peak temperature of 31.7°C (89.1°F) and a minimum temperature of 21.6°C (70.9°F).

Heat index

Throughout March, the heat index is calculated to be an extremely hot 40°C (104°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for 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.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

With an average relative humidity of 72%, March is the least humid month in Zancudo.

Rainfall

In March, in Zancudo, Costa Rica, the rain falls for 20.8 days. Throughout March, 43mm (1.69") of precipitation is accumulated. In Zancudo, during the entire year, the rain falls for 309.5 days and collects up to 2106mm (82.91") of precipitation.

Daylight

In March, the average length of the day is 12h and 5min.
On the first day of March, sunrise is at 05:45 and sunset at 17:43. On the last day of the month, sunrise is at 05:30 and sunset at 17:42 CST.

Sunshine

In Zancudo, the average sunshine in March is 9.5h.

UV index

The months with the highest UV index in Zancudo are March through May, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 7 in March translates into these instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Enhance your sun protection with tightly woven, yet airy clothing.