May weather forecastSan Pedro, Belize

Weather in May

In May, summer begins to unfurl its characteristic warmth in San Pedro, Belize. The warming trend escalates, exhibiting the highest temperatures since the start of the year, and the sea follows suit, providing some respite from the escalating heat. The increase in temperature is paired with a significant rise in humidity, enhancing the overall feel of warmth. Rainfall begins to pick up, marking the onset of the wet season with an average of 95mm (3.74"). May signals the end of the dry season while setting the stage for the impending monsoons.

Temperature

San Pedro experiences a recorded average high-temperature of a still hot 30.5°C (86.9°F) in May, closely aligned with April's 30.3°C (86.5°F). Throughout May, the temperature falls to an average low of 25.3°C (77.5°F).

Heat index

The heat index value for May is computed to be a torrid 39°C (102.2°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In San Pedro, the average relative humidity in May is 79%.

Rainfall

In San Pedro, in May, it is raining for 20.3 days, with typically 95mm (3.74") of accumulated precipitation. Throughout the year, in San Pedro, there are 262.3 rainfall days, and 1335mm (52.56") of precipitation is accumulated.

Sea temperature

In May, the average sea temperature in San Pedro is 28.4°C (83.1°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.

Daylight

The average length of the day in May is 12h and 59min.
On the first day of the month, sunrise is at 05:24 and sunset at 18:13. On the last day of May, in San Pedro, sunrise is at 05:15 and sunset at 18:23 CST.

Sunshine

The average sunshine in May is 9.9h.

UV index

March through July and September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In May, the maximum UV index of 7 suggests these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Note! Reflective surfaces like sand and water heighten the UV radiation levels.