March weather forecast
Portmore, Jamaica

As March arrives, the city of Portmore, Jamaica experiences a slight uptick in temperatures as well as rainfall from February, signaling the impending onset of spring. Outdoor activities are particularly enjoyable due to increased daylight hours, before the intense summer heat sets in. March is characterized by steady winds which, coupled with relative humidity, suggest the presence of warm and moist air mass over the region. Beachgoers will find suitable sea temperatures for swimming and other water activities. While clear visibility allows for picture-perfect views across the city, travel advisories may be issued due to high rainfall of approximately 59mm (2.32") throughout the month.

Temperature

As Portmore, Jamaica, welcomes March, the average high-temperature is noted at a still warm 27.7°C (81.9°F), closely aligning with the preceding month. Portmore, in March, experiences an average temperature of 21.7°C (71.1°F) at night.

Heat index

The heat index value for March is appraised at a hot 31°C (87.8°F). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
In reference to the heat index, it's for places in shade and with a slight wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

The least humid month in Portmore is March, with an average relative humidity of 78%.

Rainfall

In Portmore, during March, the rain falls for 25.4 days and regularly aggregates up to 59mm (2.32") of precipitation. In Portmore, during the entire year, the rain falls for 310.9 days and collects up to 1286mm (50.63") of precipitation.

Sea temperature

In March, the average sea temperature is 27.3°C (81.1°F).
Note: For swimming, diving, and various water activities, the temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as highly enjoyable and comfortable for extended durations without any discomfort.

Daylight

In Portmore, the average length of the day in March is 12h and 3min.
On the first day of March in Portmore, sunrise is at 06:25 and sunset at 18:13. On the last day of the month, sunrise is at 06:02 and sunset at 18:20 EST.

Sunshine

In Portmore, the average sunshine in March is 8.6h.

UV index

January through May, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 6 during March, leads to the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take note! Sand and water reflections strengthen the Sun's UV exposure.