December weather forecast
Port Mourant, Guyana

Lastly, December in Port Mourant comes bearing a mixed bag of weather elements. On one hand, the persistent rain intensifies, with the amount reaching 208mm (8.19"). On the other, the clement temperature, paired with ample sunshine hours, makes way for extensive outdoor activities. Daylight hour stagnation and a return to the beginning of the cycle with identical wind speeds as January suggest a full circle in the weather trend. Despite the potential challenges of increased rain, December ushers in a blend of unforgettable weather experiences to Port Mourant.

Temperature

Port Mourant, Guyana, experiences an average high-temperature of a warm 28.9°C (84°F) in December, subtly different from November's 30.2°C (86.4°F). Port Mourant registers an average low-temperature of 25.1°C (77.2°F) throughout December, a modest decrease from its daytime highs.

Heat index

In December, the average heat index is estimated at a tropical 34°C (93.2°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

The average relative humidity in December in Port Mourant is 80%.

Rainfall

In December, in Port Mourant, the rain falls for 27.4 days. Throughout December, 208mm (8.19") of precipitation is accumulated. Throughout the year, there are 312.6 rainfall days, and 2298mm (90.47") of precipitation is accumulated.

Daylight

With an average of 11h and 48min of daylight, December has the shortest days of the year in Port Mourant.
On the first day of the month, sunrise is at 05:45 and sunset at 17:32. On the last day of December, sunrise is at 05:59 and sunset at 17:45 -04.

Sunshine

In December, the average sunshine is 7.8h.

UV index

January, February, April, June through December, with an average maximum UV index of 7, are months with the highest UV index in Port Mourant. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In December, a daily UV index of 7 turns into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.