May weather forecast
Nismes, Guyana

The last month of the spring, May, is another tropical month in Nismes, Guyana, with an average temperature ranging between min 23.1°C (73.6°F) and max 30.5°C (86.9°F).

Temperature

The advent of May brings an average high-temperature of a still tropical 30.5°C (86.9°F), exhibiting minor difference from the previous month. Nismes cools down to an average low-temperature of 23.1°C (73.6°F) throughout the month of May.

Heat index

In May, the heat index is evaluated at an extremely hot 40°C (104°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Nismes, the average relative humidity in May is 82%.

Rainfall

In Nismes, in May, it is raining for 28.8 days, with typically 148mm (5.83") of accumulated precipitation. Throughout the year, in Nismes, Guyana, there are 312.9 rainfall days, and 1254mm (49.37") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 26min.
On the first day of May in Nismes, sunrise is at 05:39 and sunset at 18:01. On the last day of the month, sunrise is at 05:36 and sunset at 18:05 -04.

Sunshine

The average sunshine in May is 8.2h.

UV index

January, February, May, June and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In May, a daily UV index of 6 turns into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.