Climate and monthly weather forecastPraslin, Saint Lucia
Climate and monthly weather forecast
The climate of Praslin
In the heart of the Caribbean, Praslin, Saint Lucia boasts an Af - Tropical rainforest climate, categorized within the Köppen climate classification system. Positioned in proximity to the equator, temperatures hold remarkably consistent through the year with a high degree of humidity. Analyzing climate data, high temperatures fluctuate between 27.1°C (80.8°F) and 29.5°C (85.1°F), while the lowest temperatures range from 25.3°C (77.5°F) to 27.6°C (81.7°F), showing an impressive degree of stability across the entire climatological year. In terms of humidity, it ranges from 74% to 77% which is quite characteristic of a tropical rainforest climate.One notices a discernible patterning of rainfall across the year - while there is no month without a significant amount of rainfall, its extent ranges from a low of 18mm (0.71") in February to a high of 73mm (2.87") in October. Sunshine hours trend from a low-point of 6.6 hours per day in December to a height of ten hours and four minutes in August. Highlighting unique patterns, the wettest period ensues in the months from September to November with over 60mm (2.36") of rain each month, while February to April is relatively dry with rainfall below 30mm (1.18").
The best time to visit Praslin
While weather in Praslin remains inviting all year round, the period from February to April can be particularly enticing, especially for those seeking to avoid heavy rainfall. During this time, the average rainfall drops to below 30mm (1.18"), while the humidity remains steady at 74-75%. Complementing this, average temperatures are consistent, ranging from highs of 26.8°C (80.2°F)-27.7°C (-17.9°F) and lows between 25.3°C (77.5°F) and 25.9°C (78.6°F). Sunshine hours peak to their year high during these months, meaning more time to enjoy the beautiful beaches and scenery. Lastly, daylight hours increase from 11.7 hours in February up to 12.5 hours in April, providing plenty of hours for exploration.The worst time to visit Praslin
The months of September through November are characterized by the highest rainfall, cresting at 73mm (2.87") in October. During this period, rainfall days increase to a yearly high of 23.3 in July, thereby reducing opportunities for outdoor activities. Hence, it might be less attractive for visitors hoping to avoid wet weather. While the temperatures remain constant, with highs between 28.6°C (83.5°F) and 29.5°C (85.1°F) and lows from 26.9°C (80.4°F) to 27.6°C (81.7°F), the increase in rainfall and relative humidity, which float around 75-76%, might detract from the comfort of the stay.Spring weather in Praslin
In the Spring season comprising March, April and May, average high temperatures range narrowly from 27.1°C (80.8°F) to 28.4°C (83.1°F), while low temperatures vary between 25.4°C (77.7°F) and 26.7°C (80.1°F). March and April experience relatively low rainfall with a respective 20mm (0.79") and 29mm (1.14"), which increases to 33mm (1.3") in May. Relative humidity remains fairly constant, wavering at around 75-76%. Sunshine hours see a remarkable change from 8.7 in March to 10 in May, offering increased opportunities for outdoor exploration.Summer weather in Praslin
The summer months of June, July and August bring increased rainfall, from 46mm (1.81") in June, escalating to 72mm (2.83") in July and August alike. Though temperatures remain consistent with highs between 28.6°C (83.5°F) and 28.9°C (84°F) and lows from 26.9°C (80.4°F) to 27.3°C (81.1°F), relative humidity also increases to 76-77%. Despite this, the season offers the maximum daylight hours, lingering around 12.8-12.9 hours, complimented by a steady 9.9-10.4 hours of sunshine.Autumn weather in Praslin
The Autumn season from September to November features a pronounced peak in rainfall, with September and October both exceeding 64mm (2.52"), and November still experiencing a substantial 54mm (2.13"). Consequently, the number of rainfall days also peaks to yearly high of 23.3 days in July. However, temperatures remain fairly consistent, with highs ranging from 28.7°C (83.7°F)-29.5°C (-21.1°F) and lows from 27.4°C (81.3°F) to 27.6°C (81.7°F). Despite the humid conditions, sunshine hours and visibility hold consistent, offering decent conditions for sightseeing.Winter weather in Praslin
The winter months from December to February offer a contrast, with an average rainfall from 24mm (0.94") to 37mm (1.46"). High temperatures range from 27.1°C (80.8°F) to 27.9°C (82.2°F) and low temperatures between 25.6°C (78.1°F) and 26.2°C (79.2°F). Corresponding to this, hours of sunshine decline from 6.9 hours in December to 6.6 hours in January before rising again to 7.3 hours by February, while daily daylight hours reduce, bottoming out at 11.3 hours in December.Weather in January
Despite its traditional association with cold weather, January in Praslin, Saint Lucia, has relatively mild temperatures and skies that are moderately cloudy. Wind gusts reach 36.2km/h (22.5mph) this month, signaling brisk trade winds common for the Caribbean Sea at this time. Weather in January »Weather in February
The weather in February follows a similar pattern to the preceding month, though with a slight decrease in rainfall and a modest increase in sunshine hours. Wind speeds are observed at a slightly higher rate of 27.5km/h (17.1mph) compared to the previous month. Weather in February »Weather in March
As March rolls in, the weather in Praslin, Saint Lucia leans more towards heightened warmth and declining rainfall levels. A noticeable decrease in wind speeds to 24.9km/h (15.5mph) characterizes the weather for this month. Daylight hours and sunshine duration continue their upward trend, signaling the approach of longer daytime and favorable tropical weather. Weather in March »Weather in April
April in Praslin, Saint Lucia denotes a shift in the usual weather pattern, with the first major surge in rainfall, increasing to 29mm (1.14"). This is accompanied by lighter wind conditions, dropping to 24km/h (14.9mph). Daylight extends, hinting at an arrival of longer days and potential for increased outdoor activities. Weather in April »Weather in May
Weather modifications in May are characterized by higher temperatures, and precipitation in Praslin, Saint Lucia hikes further to 33mm (1.3"). The increase signals the commencement of the wet season in the tropics, a period known for increased rainfall. Weather in May »Weather in June
Transitioning into June, Praslin, Saint Lucia embraces notable changes, with a rise in rainfall to 46mm (1.81") and a further increase in temperatures. This marks the onset of the region's heaviest rainfall period. Winds seem to pick up again, suggesting a change in atmospheric pressure patterns. Weather in June »Weather in July
The peak rainy season is most profound in July, with Praslin, Saint Lucia experiencing a drastic rise in rainfall to 72mm (2.83"). This aligns with the wind speed reduction to 25km/h (15.5mph), hinting at more stable atmospheric conditions unlike in June. Weather in July »Weather in August
August mirrors July in terms of weather patterns in Praslin, Saint Lucia, maintaining rainfall levels at 72mm (2.83") though with marginally cooler temperatures. Slight wind speed reduction to 22.1km/h (13.7mph) brings about even calmer atmospheres in the tropical paradise. Weather in August »Weather in September
Signalling the transition towards the end of the rainy season, September experiences a reduction in rainfall to 64mm (2.52") in Praslin, Saint Lucia. Winds slowing to 18.6km/h (11.6mph) reflect less turbulent atmospheric conditions. Weather in September »Weather in October
The month of October in Praslin, Saint Lucia observes a rainfall increase to 73mm (2.87"), bringing about the last peak before the onset of the dry season. Meanwhile, winds are slightly stronger at 20.5km/h (12.7mph), stirring up the Caribbean waters. Weather in October »Weather in November
Shifting into November, the late autumn period in Praslin, Saint Lucia marks a significant reduction in rainfall to 54mm (2.13"), advancing towards the dry season. With winds approximately 22.4km/h (13.9mph), coastal areas can anticipate comfortable sea breezes. Weather in November »Weather in December
Rounding out the year, December in Praslin, Saint Lucia signals the resumption of the dry season through a consistent decrease in rainfall to 37mm (1.46"). With stronger winds around 25.5km/h (15.8mph), the cooler trade winds of the Caribbean create refreshing conditions. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Praslin, Saint Lucia
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).
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
Praslin, Saint Lucia
- Average pressure in January:
1014.5mbar - Average pressure in February:
1014.5mbar - Average pressure in March:
1014.3mbar - Average pressure in April:
1014mbar - Average pressure in May:
1014.2mbar - Average pressure in June:
1014.9mbar
- Average pressure in July:
1014.5mbar - Average pressure in August:
1013.4mbar - Average pressure in September:
1012.5mbar - Average pressure in October:
1011.6mbar - Average pressure in November:
1011.3mbar - Average pressure in December:
1013.2mbar
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
Praslin, Saint Lucia
- Average wind speed in January:
26.6km/h - Average wind speed in February:
26.9km/h - Average wind speed in March:
24.5km/h - Average wind speed in April:
23.6km/h - Average wind speed in May:
24.1km/h - Average wind speed in June:
26.2km/h
- Average wind speed in July:
25km/h - Average wind speed in August:
21.4km/h - Average wind speed in September:
18.3km/h - Average wind speed in October:
19.8km/h - Average wind speed in November:
21.7km/h - Average wind speed in December:
24.9km/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
Praslin, Saint Lucia
The month with the highest relative humidity is July (77%).
The months with the lowest relative humidity are January and February (74%).
Average rainfall
Praslin, Saint Lucia
The wettest month (with the highest rainfall) is October (73mm).
The driest month (with the least rainfall) is February (18mm).
Average rainfall days
Praslin, Saint Lucia
- Average rainfall days in January:
18.9 days - Average rainfall days in February:
15 days - Average rainfall days in March:
16.1 days - Average rainfall days in April:
18 days - Average rainfall days in May:
20.2 days - Average rainfall days in June:
21.4 days
- Average rainfall days in July:
23.3 days - Average rainfall days in August:
22.4 days - Average rainfall days in September:
19.5 days - Average rainfall days in October:
19.4 days - Average rainfall days in November:
19.5 days - Average rainfall days in December:
18.7 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 / Average sunshine
Praslin, Saint Lucia
- Average daylight in January:
11h and 24min - Average daylight in February:
11h and 42min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 30min - Average daylight in May:
12h and 48min - Average daylight in June:
12h and 54min
- Average daylight in July:
12h and 54min - Average daylight in August:
12h and 36min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 48min - Average daylight in November:
11h and 30min - Average daylight in December:
11h and 18min
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 January:
7h and 18min - Average sunshine in February:
8h and 42min - Average sunshine in March:
8h and 42min - Average sunshine in April:
10h and 6min - Average sunshine in May:
10h and 0min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
10h and 24min - Average sunshine in September:
10h and 6min - Average sunshine in October:
8h and 30min - Average sunshine in November:
6h and 54min - Average sunshine in December:
6h and 36min
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
Praslin, Saint Lucia
- Average sunshine days in January:
7 days - Average sunshine days in February:
8 days - Average sunshine days in March:
9.1 days - Average sunshine days in April:
6.6 days - Average sunshine days in May:
6.3 days - Average sunshine days in June:
4.2 days
- Average sunshine days in July:
3.6 days - Average sunshine days in August:
5.2 days - Average sunshine days in September:
7.1 days - Average sunshine days in October:
8.5 days - Average sunshine days in November:
6.2 days - Average sunshine days in December:
9 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
Praslin, Saint Lucia
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
Praslin, Saint Lucia
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
Praslin, Saint Lucia
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).





