May weather forecast
Grace, Saint Lucia

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Weather in May

In Grace, Saint Lucia, May brings a marked increase in rainfall, while the average temperatures show a moderate increase. Relative humidity stays steady while wind speed comes down slightly. There's an increase in the cloud cover, reducing the duration of sunshine. According to the weather data for Grace May has an average of 33mm (1.3") of rainfall across 20.2 days. The increased rainfall seen in May gives way to even higher amounts in June, marking the beginning of the rainy season.

Temperature

May's weather displays an average high-temperature of a still moderately hot 28.4°C (83.1°F), slightly varied from April's 27.7°C (81.9°F). Grace registers a steady nighttime temperature averaging a still moderately hot 26.7°C (80.1°F) throughout May.

Heat index

For May, the heat index is computed to be a hot 32°C (89.6°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

In May, the average relative humidity is 76%.

Rainfall

In Grace, in May, during 20.2 rainfall days, 33mm (1.3") of precipitation is typically accumulated. In Grace, during the entire year, the rain falls for 232.4 days and collects up to 542mm (21.34") of precipitation.

Daylight

In May, the average length of the day in Grace is 12h and 46min.
On the first day of the month, sunrise is at 05:41 and sunset at 18:19. On the last day of May, in Grace, sunrise is at 05:35 and sunset at 18:28 AST.

Sunshine

In May, the average sunshine is 10h.

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 Grace are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the average maximum UV index of 7 translates into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

Is it hot in Grace during May?

The average high-temperature and low-temperature in Grace during May are 28.4°C (83.1°F) and 26.7°C (80.1°F) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in May is computed to be 32°C (89.6°F).

What is the average humidity in May in Grace?

The average relative humidity in May in Grace is 76%.

How much does it rain in Grace in May?

In Grace, in May, it is raining for 20.2 days, with typically 33mm (1.3") of accumulated precipitation.

How many hours of daylight does Grace have in May?

In May, the average day length in Grace, Saint Lucia, is 12h and 46min.

What time are sunrise and sunset in May in Grace?

In May, on the first day of the month, sunrise is at 05:41 and sunset at 18:19. On the last day of the month, in Grace, sunrise is at 05:35 and sunset at 18:28 AST.

How many hours of sunshine does Grace have in May?

The average sunshine duration in May is 10h.

What are the months with the highest UV index in Grace?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Grace, Saint Lucia.

What are the months with the lowest UV index in Grace?

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

What is the UV index intensity in May in Grace?

The average daily maximum UV index in May is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.

Average temperature in May
Grace, Saint Lucia

Average temperature in May - Grace, Saint Lucia
  • Average high temperature in May: 28.4°C

The warmest months (with the highest average high temperature) are September and October (29.5°C).
The month with the lowest average high temperature is February (26.8°C).

  • Average low temperature in May: 26.7°C

The month with the highest average low temperature is September (27.6°C).
The coldest month (with the lowest average low temperature) is February (25.3°C).

Average pressure in May
Grace, Saint Lucia

Average pressure in May - Grace, Saint Lucia
  • Average pressure in May: 1014.2mbar

The month with the highest atmospheric pressure is June (1014.9mbar).
The month with the lowest atmospheric pressure is November (1011.3mbar).

Average wind speed in May
Grace, Saint Lucia

Average wind speed in May - Grace, Saint Lucia
  • Average wind speed in May: 24.1km/h

The windiest month (with the highest average wind speed) is February (26.9km/h).
The calmest month (with the lowest average wind speed) is September (18.3km/h).

Average humidity in May
Grace, Saint Lucia

Average humidity in May - Grace, Saint Lucia
  • Average humidity in May: 76%

The month with the highest relative humidity is July (77%).
The months with the lowest relative humidity are January and February (74%).

Average rainfall in May
Grace, Saint Lucia

Average rainfall in May - Grace, Saint Lucia
  • Average rainfall in May: 33mm

The wettest month (with the highest rainfall) is October (73mm).
The driest month (with the least rainfall) is February (18mm).

Average rainfall days in May
Grace, Saint Lucia

Average rainfall days in May - Grace, Saint Lucia
  • Average rainfall days in May: 20.2 days

The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is February (15 days).

Average daylight in May /
Average sunshine in May
Grace, Saint Lucia

Average daylight in May / Average sunshine in May - Grace, Saint Lucia
  • Average daylight in May: 12h and 5min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in May: 10h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

Average sunshine days in May
Grace, Saint Lucia

Average sunshine days in May - Grace, Saint Lucia
  • Average sunshine days in May: 6.3 days

The month with the most sunshine days is March (9.1 days).
The month with the least sunshine days is July (3.6 days).

Average UV index in May
Grace, Saint Lucia

Average UV index in May - Grace, Saint Lucia
  • 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
Grace, Saint Lucia

Average cloud cover in May - Grace, Saint Lucia
  • Average cloud cover in May: 44

The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is February (Cloud cover 35).

Average visibility in May
Grace, Saint Lucia

Average visibility in May - Grace, Saint Lucia
  • 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).

Grace, Saint Lucia

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