May weather forecast
Punta Santiago, PR

With the advent of May, fluctuations become more pronounced, indicating the onset of warmer months in Punta Santiago. A significant increase in rainfall becomes visually apparent. The longer days filled with increased sunshine introduce a higher uv-index rating of 7, imposing a higher risk of harm from unprotected sun exposure. Despite the higher temperatures, the relative humidity remains fairly constant providing a measure of relief. Notably, the rainfall increases to a whopping 3.5" (89mm) over the month—spread across nearly 26.3 rainy days—with the lowest temperature escalating to a warm 76.3°F (24.6°C).

Temperature

The transition into May reveals an average high-temperature of a still moderately hot 82°F (27.8°C), mirroring a close resemblance to April. Punta Santiago's nighttime temperature in May experiences a slight dip from daytime highs, falling to an average of 76.3°F (24.6°C).

Heat index

In May, the heat index is calculated to be a tropical 89.6°F (32°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. 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. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

The months with the highest humidity in Punta Santiago are May, July, August and November, with an average relative humidity of 80%.

Rainfall

In Punta Santiago, in May, it is raining for 26.3 days, with typically 3.5" (89mm) of accumulated precipitation. In Punta Santiago, Puerto Rico, during the entire year, the rain falls for 268.8 days and collects up to 38.58" (980mm) of precipitation.

Ocean temperature

In May, the average ocean temperature in Punta Santiago is 81.5°F (27.5°C).
Note: Water temperature ranging from 77°F (25°C) to 84.2°F (29°C) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.

Daylight

In Punta Santiago, Puerto Rico, the average length of the day in May is 12h and 59min.
On the first day of May, sunrise is at 5:55 am and sunset at 6:44 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 6:55 pm AST.

Sunshine

In May, the average sunshine in Punta Santiago is 10.2h.

UV index

The months with the highest UV index in Punta Santiago are April through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 7 in May suggests the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. 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. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Warning! The Sun's UV rays intensify with reflections from sand and water.