May weather forecast
San Vicente, Costa Rica

May is characterized by the pronounced shift into rainy season in San Vicente, Costa Rica. The rainfall level peaks, bloating to an impressive average 339mm (13.35") compared to merely 86mm (3.39") in April. The city robes itself in a cooler glow, with decreasing daylight and sunshine hours. Despite the uptick in rainfall, the city's vibrant nature shines amid the rain showers, flourishing in earth's supply. May embraces the damp, demonstrating nature's resilience to handle a shift of climate extremes.

Temperature

The arrival of May in San Vicente marks a slight shift to an average high-temperature of a still warm 27.7°C (81.9°F) from April's 29.7°C (85.5°F). During the nights in May, an average low-temperature of 19.8°C (67.6°F) is observed in San Vicente.

Heat index

May's heat index is evaluated at a hot 32°C (89.6°F). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
One should be cognizant that the heat index values are tailored for shaded spots and mild 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 'real feel' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.

Humidity

The average relative humidity in May is 82%.

Rainfall

In San Vicente, Costa Rica, in May, it is raining for 27.2 days, with typically 339mm (13.35") of accumulated precipitation. In San Vicente, during the entire year, the rain falls for 272 days and collects up to 2217mm (87.28") of precipitation.

Daylight

The average length of the day in May is 12h and 35min.
On the first day of the month, sunrise is at 05:18 and sunset at 17:47. On the last day of May, in San Vicente, sunrise is at 05:13 and sunset at 17:54 CST.

Sunshine

The average sunshine in May is 7.8h.

UV index

The months with the lowest UV index are May, August and November, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 5 during May leads to these instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.