May weather forecastGrand Roy, Grenada

May

Weather in May

With May, begins the pre-summer warm-up in the weather of Grand Roy, Grenada. The heat level increases steadily, enhanced by the longer sunshine hours contributing to a warm and vibrant ambiance. May experiences an escalation in relative humidity, and the length of daylight hours extends further. The pressure remains almost constant, resulting in a fairly predictable weather pattern. Temperatures from 27.1°C (80.8°F) to 27.9°C (82.2°F) occur this month, readying residents for the blazing summer temperatures that are on their way.

Temperature

Grand Roy, Grenada, starts May with an average high-temperature of a still moderately hot 27.9°C (82.2°F), a minor shift from April's 27.3°C (81.1°F). Grand Roy maintains a minor drop in temperature during May nights, with averages of 27.1°C (80.8°F).

Heat index

The average heat index in May is appraised at a hot 32°C (89.6°F). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
Note that heat index values are valued for light wind and location in the shade. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

May through July, with an average relative humidity of 79%, are the most humid months.

Rainfall

In Grand Roy, Grenada, in May, it is raining for 16.2 days, with typically 30mm (1.18") of accumulated precipitation. Throughout the year, there are 232 rainfall days, and 739mm (29.09") of precipitation is accumulated.

Daylight

In Grand Roy, the average length of the day in May is 12h and 41min.
On the first day of May in Grand Roy, Grenada, sunrise is at 05:46 and sunset at 18:21. On the last day of the month, sunrise is at 05:41 and sunset at 18:28 AST.

Sunshine

The average sunshine in May in Grand Roy is 10.1h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Grand Roy are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In May, the maximum UV index of 7 suggests this advice:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in May, in Grand Roy, is 27.9°C (82.2°F) and the average low-temperature is 27.1°C (80.8°F). In May, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is appraised at 32°C (89.6°F).

The months with the highest humidity in Grand Roy are May through July, with an average relative humidity of 79%.

The average relative humidity in May in Grand Roy is 79%.

In Grand Roy, during May, the rain falls for 16.2 days and regularly aggregates up to 30mm (1.18") of precipitation.

In May, the average day length is 12h and 41min.

In May, on the first day of the month, sunrise is at 05:46 and sunset at 18:21. On the last day of the month, in Grand Roy, Grenada, sunrise is at 05:41 and sunset at 18:28 AST.

The average sunshine duration in May in Grand Roy is 10.1h.

January through December, with an average maximum UV index of 7, are months with the highest UV index in Grand Roy.

January through December, with an average maximum UV index of 7, are months with the lowest UV index in Grand Roy.

In Grand Roy, the average daily maximum UV index in May is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

27.3°C

27.9°C

28.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

27.5km/h

28.1km/h

28.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

9.2

8.7

6.4

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Grand Roy, Grenada

Average high temperature in May: 27.9°C

The warmest months (with the highest average high temperature) are September and October (28.8°C).
The month with the lowest average high temperature is February (26.7°C).

Average low temperature in May: 27.1°C

The month with the highest average low temperature is September (28.1°C).
The coldest month (with the lowest average low temperature) is February (25.8°C).

Average pressure in May
Grand Roy, Grenada

Average pressure in May: 1013.5mbar

The month with the highest atmospheric pressure is June (1014.2mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).

Average wind speed in May
Grand Roy, Grenada

Average wind speed in May: 27.7km/h

The windiest month (with the highest average wind speed) is February (29.4km/h).
The calmest month (with the lowest average wind speed) is September (21.5km/h).

Average humidity in May
Grand Roy, Grenada

Average humidity in May: 79%

The months with the highest relative humidity are May, June and July (79%).
The months with the lowest relative humidity are February and September (76%).

Average rainfall in May
Grand Roy, Grenada

Average rainfall in May: 30mm

The wettest month (with the highest rainfall) is October (110mm).
The driest month (with the least rainfall) is April (25mm).

Average rainfall days in May
Grand Roy, Grenada

Average rainfall days in May: 16.2 days

The months with the highest number of rainy days are July and August (22.3 days).
The month with the least rainy days is April (14.8 days).

Average daylight in May /
Average sunshine in May
Grand Roy, Grenada

Average daylight in May: 12h and 42min

The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).

Average sunshine in May: 10h and 6min

The months with the most sunshine are August and September (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).

Average sunshine days in May
Grand Roy, Grenada

Average sunshine days in May: 8.7 days

The months with the most sunshine days are April and October (9.2 days).
The month with the least sunshine days is July (4.6 days).

Average UV index in May
Grand Roy, Grenada

Average UV index in May: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in May
Grand Roy, Grenada

Average cloud cover in May: 41

The month with the most cloud cover is November (Cloud cover 43).
The month with the least cloud cover is September (Cloud cover 35).

Average visibility in May
Grand Roy, Grenada

Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).