October weather forecastGrand Roy, Grenada
October
Weather in October
As October dawns, the evening chill begins to replace the warm summer air. Growth of cloud cover signifies a decrease in hours of sunshine. The rainfall further increases to 110mm (4.33"), making for abundant vegetation and scenic beauty. The days get shorter as the daylight duration begins to decrease, signaling the onset of winter. Temperatures steadily drop down to the range of 27.9°C (82.2°F) to 28.8°C (83.8°F).Temperature
Grand Roy experiences the peak of its temperatures in September and October, when the average high-temperatures rise to 28.8°C (83.8°F).Heat index
During October, the heat index is appraised at a hot 34°C (93.2°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. 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 'apparent temperature' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in October in Grand Roy, Grenada, is 78%.Rainfall
October is the month with the most rainfall. Rain falls for 20.7 days and accumulates 110mm (4.33") of precipitation.Daylight
In October, the average length of the day in Grand Roy is 11h and 52min.On the first day of the month, sunrise is at 05:56 and sunset at 17:56. On the last day of October, in Grand Roy, sunrise is at 05:59 and sunset at 17:41 AST.
Sunshine
In October, the average sunshine is 8.4h.UV index
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. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: In October, the maximum UV index of 7 suggests this advice:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Grand Roy, Grenada
- Average high temperature in October: 28.8°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 October: 27.9°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 October
Grand Roy, Grenada
- Average pressure in October: 1011.1mbar
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 October
Grand Roy, Grenada
- Average wind speed in October: 23.3km/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 October
Grand Roy, Grenada
- Average humidity in October: 78%
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 October
Grand Roy, Grenada
- Average rainfall in October: 110mm
The wettest month (with the highest rainfall) is October (110mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in October
Grand Roy, Grenada
- Average rainfall days in October: 20.7 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 October /
Average sunshine in October
Grand Roy, Grenada
- Average daylight in October: 11h and 54min
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 October: 8h and 24min
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 October
Grand Roy, Grenada
- Average sunshine days in October: 9.2 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 October
Grand Roy, Grenada
- Average UV index in October: 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 October
Grand Roy, Grenada
- Average cloud cover in October: 39
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 October
Grand Roy, Grenada
- Average visibility in October: 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).





