Climate and monthly weather forecastMorne Longue, Grenada
Climate and monthly weather forecast
The climate of Morne Longue
Morne Longue, Grenada, is situated within the Köppen climate classification of Aw, also referred to as a tropical wet and dry or savanna climate. This identification reveals the usual weather patterns the locale experiences annually, which largely involves consistent high temperatures and significant rainfall.Throughout the year, Morne Longue's temperatures remain consistently high, with monthly average highs fluctuating lightly from 26.7°C (80.1°F) to 28.8°C (83.8°F) and average lows varying from 25.8°C (78.4°F) to 28.1°C (82.6°F). These temperatures hardly waver throughout the year. Rainfall also displays a similar trend with minimal deviation with monthly averages ranging from 26mm (1.02") to 122mm (4.8"). The periods between June and November, however, are slightly rainier, causing a slight uptick in humidity levels.
A consistency of the area can be observed in the UV index as well, remaining at a constant level of 7 throughout the year. The visibility, which averages 10 km monthly, reinforces this consistency.
The wind speed shows slight variations throughout the year moving from 21.6km/h (13.4mph) to 29.9km/h (18.6mph). The wind gusts register the most speed between January and June, peaking at 40.7km/h (25.3mph) in June before reducing gradually.
The best time to visit Morne Longue
Taking into account the consistent weather conditions of Morne Longue, the best time for a visit largely depends on individual preferences. Nevertheless, if the goal is to experience optimal sunshine hours and reduced rainfall, a trip between December and April would be ideal. This period sees less rainfall, with averages dropping from 53mm (2.09") in December to 26mm (1.02") in February, and significant sunshine hours, peaking at 10.7 hours daily in March.The worst time to visit Morne Longue
Visitors who wish to avoid heavier precipitation and decreased sunshine hours should ideally avoid visits from June to November. The period registers increased rainfall, with the highest — 122mm (4.8") in October — and more cloudy days as well. It should be noted that October also records the lowest sunshine rate — 8.5 hours daily — of the year in Morne Longue.Spring weather in Morne Longue
Regarded as one of the best periods to visit Morne Longue, Spring in this tropical paradise presents mellow rainfall and ample sunshine. Temperatures moderately range from 26°C (78.8°F) to 28.3°C (82.9°F), while average rainfall registers 26mm (1.02") in February and picks up to 28mm (1.1") in March. The enlightening opportunity of up to 10.2 sunshine hours daily during this period further enriches the visiting experience.Summer weather in Morne Longue
Summer in Morne Longue witnesses a slight increase in precipitation. Rainfall averages move from 35mm (1.38") in May, peaking at 88mm (3.46") in July. Temperatures remain stable, however, averaging from 28.1°C (82.6°F) in June to 28.4°C (83.1°F) in August. Despite the rain increase, substantial sunshine, reaching up to 10.7 hours daily in July, remains a constant delight.Autumn weather in Morne Longue
Autumn in Morne Longue corresponds with a period of heaviest rainfalls of up to 122mm (4.8") in October. The temperatures remain steady, ranging from 28.8°C (83.8°F) in September to 28°C (82.4°F) in November. A reduction in the average sunshine hours to 8.5 hours daily in October can be observed during this period.Winter weather in Morne Longue
Winter marks another suitable time to visit Morne Longue, as rainfall eases off from 99mm (3.9") in December to 41mm (1.61") in January. The average high temperatures moderate between 28.3°C (82.9°F) and 26.9°C (80.4°F) while the average low stays between 27.7°C (81.9°F) and 26.3°C (79.3°F). Visitors can enjoy up to 7.8 hours of sunshine daily in December and January.Weather in January
During January, Morne Longue welcomes the New Year with an appreciable level of heat, characterized by temperatures hovering between 26.3°C (79.3°F) and 26.9°C (80.4°F). Humidity remains relatively constant, creating a slightly sticky but manageable environment. Weather in January »Weather in February
February sees a slight downturn in temperature from January, with the low averaging at 25.8°C (78.4°F). This slight difference is often unnoticeable, with the weather continuing to be warm and humid. The rainfall also decreases to 26mm (1.02"), the second-lowest in the year, indicating largely dry weather conditions. Weather in February »Weather in March
Morne Longue transitions into March with a rise in the lowest temperature to 26°C (78.8°F) and the highest to 26.8°C (80.2°F), barely noticeable compared to February. Warm and humid conditions prevail, with a minor increase in rainfall averaging 28mm (1.1"). Weather in March »Weather in April
In April, the thermal shift continues with the lowest temperature rising to 26.5°C (79.7°F). The rise in temperature and humidity makes the climate feel slightly warmer, but the levels remain tolerable for residents and tourists. Weather in April »Weather in May
May in Morne Longue welcomes a pronounced increase in heat, with temperatures reaching 27.1°C (80.8°F) at the lowest. The rise in temperature is matched by a simultaneous increase in humidity. Rainfall also notices a significant break, rising to an annual high at 35mm (1.38"), symbolizing the inception of the rainy season. Weather in May »Weather in June
As we venture into June, the increase in temperature persists, reaching 27.3°C (81.1°F) at the lowest. The city experiences the longest daylight hours, totalling 12.8 hours throughout the year. The presence of nearly equal hours of daylight and darkness regulates many natural processes in the city. Weather in June »Weather in July
July marks the midpoint of the year with the temperature rising to 27.3°C (81.1°F) at the lowest and 28.2°C (82.8°F) at the highest. The consistency in weather facilitates a balance between the hot and wet conditions in Morne Longue. Weather in July »Weather in August
August brings a further rise in temperatures, with the lowest recorded temperature being 27.9°C (82.2°F). The rainfall continues to be copious, recording an average of 104mm (4.09") for the month. Despite continuous showers, sunshine persists with 10.7 hours recorded each day, showing that the sunniest days can follow even the heaviest rains. Weather in August »Weather in September
September ushers in a cooler period, as the temperature lowers slightly to 28.1°C (82.6°F). Despite the city being in the throes of the rainy season, the rainfall decreases to 88mm (3.46"). The city experiences a decrease in daylight hours to 12.2 hours, signaling the onset of shorter days. Weather in September »Weather in October
In October, temperatures remain stable with a slight drop to 28°C (82.4°F). Notably, October experiences the highest rainfall of the year at 122mm (4.8"), despite the general trend of decreasing rainfall throughout the month. Weather in October »Weather in November
November in Morne Longue witnesses a downward shift in temperature to 27.7°C (81.9°F). The city begins to transition from the hot rainy season to slightly cooler conditions. The rainfall also tends to decline, settling around 99mm (3.9") as the rains become less frequent. Weather in November »Weather in December
December marks the end of the year with a further decline in temperature to 26.8°C (80.2°F). This cooling trend signifies the transition towards the slightly cooler season. The annual rainfall also decreases, closing at 53mm (2.09"), indicating a relative respite from the showers. Weather in December »Updated: Aug 18, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, February and September, with an average relative humidity of 76%, are the least humid months.
In Morne Longue, during the entire year, the rain falls for 249.7 days and collects up to 774mm (30.47") of precipitation.
January through August, October through December are months without snowfall.
Throughout the year, there are 0.1 snowfall days.
The months with the highest UV index are January through December, with an average maximum UV index of 7.
January through December, with an average maximum UV index of 7, are months with the lowest UV index.
February proves to be the coldest month, recording an average maximum temperature of 26.7°C (80.1°F) and a minimum temperature of 25.8°C (78.4°F).
February is the month with the least rainfall in Morne Longue. Rain falls for 17.6 days and accumulates 26mm (1.02") of precipitation.
The months with the highest humidity are May through July, with an average relative humidity of 79%.
The month with the longest days is June, with an average of 12h and 48min of daylight.
The month with the most sunshine in Morne Longue is August, with an average of 10.7h of sunshine.
September tends to be the warmest month, with temperatures averaging a daily high of 28.8°C (83.8°F) and a low of 28.1°C (82.6°F).
The only month with snowfall is September.
The month with the most snowfall days is September, when snow falls for 0.1 days.
October is the month with the most rainfall. Rain falls for 22.5 days and accumulates 122mm (4.8") of precipitation.
The month with the shortest days is December, with an average of 11h and 24min of daylight.
Morne Longue does not observe Daylight Saving Time (DST). AST timezone is used over the entire year.
With an average of 6.3h of sunshine, December has the least sunshine of the year.
Average temperature
Morne Longue, Grenada
The warmest month (with the highest average high temperature) is September (28.8°C).
The month with the lowest average high temperature is February (26.7°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
Morne Longue, Grenada
- Average pressure in January:
1014mbar - Average pressure in February:
1013.9mbar - Average pressure in March:
1013.7mbar - Average pressure in April:
1013.4mbar - Average pressure in May:
1013.5mbar - Average pressure in June:
1014.2mbar
- Average pressure in July:
1013.9mbar - Average pressure in August:
1012.9mbar - Average pressure in September:
1012mbar - Average pressure in October:
1011.1mbar - Average pressure in November:
1010.8mbar - Average pressure in December:
1012.7mbar
The month with the highest atmospheric pressure is June (1014.2mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed
Morne Longue, Grenada
- Average wind speed in January:
29.3km/h - Average wind speed in February:
29.9km/h - Average wind speed in March:
27.9km/h - Average wind speed in April:
27.2km/h - Average wind speed in May:
27.9km/h - Average wind speed in June:
28.8km/h
- Average wind speed in July:
26.6km/h - Average wind speed in August:
23.2km/h - Average wind speed in September:
21.6km/h - Average wind speed in October:
23.5km/h - Average wind speed in November:
25.5km/h - Average wind speed in December:
28.7km/h
The windiest month (with the highest average wind speed) is February (29.9km/h).
The calmest month (with the lowest average wind speed) is September (21.6km/h).
Average humidity
Morne Longue, Grenada
The months with the highest relative humidity are May, June and July (79%).
The months with the lowest relative humidity are January, February and September (76%).
Average rainfall
Morne Longue, Grenada
The wettest month (with the highest rainfall) is October (122mm).
The driest month (with the least rainfall) is February (26mm).
Average rainfall days
Morne Longue, Grenada
- Average rainfall days in January:
21.9 days - Average rainfall days in February:
17.6 days - Average rainfall days in March:
16.8 days - Average rainfall days in April:
16 days - Average rainfall days in May:
18.9 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
23.4 days - Average rainfall days in August:
25.1 days - Average rainfall days in September:
22.6 days - Average rainfall days in October:
22.5 days - Average rainfall days in November:
23.6 days - Average rainfall days in December:
22.5 days
The month with the highest number of rainy days is August (25.1 days).
The month with the least rainy days is April (16 days).
Average snowfall days
Morne Longue, Grenada
- Average snowfall days in January:
0 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight / Average sunshine
Morne Longue, Grenada
- Average daylight in January:
11h and 30min - Average daylight in February:
11h and 48min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 24min - Average daylight in May:
12h and 42min - Average daylight in June:
12h and 48min
- Average daylight in July:
12h and 48min - Average daylight in August:
12h and 30min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 54min - Average daylight in November:
11h and 36min - Average daylight in December:
11h and 24min
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 January:
7h and 48min - Average sunshine in February:
8h and 48min - Average sunshine in March:
8h and 36min - Average sunshine in April:
9h and 48min - Average sunshine in May:
10h and 12min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
10h and 42min - Average sunshine in September:
10h and 30min - Average sunshine in October:
8h and 30min - Average sunshine in November:
6h and 30min - Average sunshine in December:
6h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days
Morne Longue, Grenada
- Average sunshine days in January:
4.5 days - Average sunshine days in February:
6 days - Average sunshine days in March:
7.8 days - Average sunshine days in April:
7 days - Average sunshine days in May:
5.2 days - Average sunshine days in June:
5.6 days
- Average sunshine days in July:
4.1 days - Average sunshine days in August:
3.3 days - Average sunshine days in September:
5 days - Average sunshine days in October:
6.4 days - Average sunshine days in November:
4.5 days - Average sunshine days in December:
5.5 days
The month with the most sunshine days is March (7.8 days).
The month with the least sunshine days is August (3.3 days).
Average UV index
Morne Longue, Grenada
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
Morne Longue, Grenada
The months with the most cloud cover are June, July and November (Cloud cover 42).
The month with the least cloud cover is September (Cloud cover 35).
Average visibility
Morne Longue, Grenada
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).
