May weather forecast
Belize City, Belize

The climate in May moves towards its hottest phase, recording high temperatures and humidity levels. Despite this, Belize City manifests itself beautifully under clear blue skies that dominate most days. An increase in average rainfall to 105mm (4.13") revitalizes the city's natural beauty and ensures the flora thrives. Evening showers offer respite from the day's heat, setting the stage for pleasant, cooler nights. The weather becomes stirring, with vibrant city life amplified by the tropical climate.

Temperature

Belize City's temperatures tend to reach their peak averages in May, with a high of 31.8°C (89.2°F) and a low of 24.2°C (75.6°F).

Heat index

During May, the heat index is computed to be a blistering 43°C (109.4°F). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. 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 are particularly meaningful for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in May is 79%.

Rainfall

In Belize City, in May, it is raining for 6.1 days, with typically 105mm (4.13") of accumulated precipitation. Throughout the year, there are 136.2 rainfall days, and 2014mm (79.29") of precipitation is accumulated.

Sea temperature

May through November, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.
Note: Ideal surface water temperatures for any water activity fall between 25°C (77°F) and 29°C (84.2°F), offering maximum enjoyment for lengthened periods.

Daylight

In May, the average length of the day is 12h and 58min.
On the first day of the month, sunrise is at 05:26 and sunset at 18:13. On the last day of May, in Belize City, sunrise is at 05:17 and sunset at 18:23 CST.

Sunshine

In May, the average sunshine is 8.3h.

UV index

The months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 12 translates into these guidelines:
Undertake every vital safety procedure, as unprotected skin and eyes could sustain burns in no time. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Applying and reapplying liberally a broad-spectrum sunscreen of SPF 30+ every two hours, and straight after a swim or outdoor activity is recommended. Beware! Reflecting off water and sand, UV rays are much stronger.