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Contents
- The climate of Vieux Fort
- The best time to visit Vieux Fort
- The worst time to visit Vieux Fort
- Spring weather in Vieux Fort
- Summer weather in Vieux Fort
- Autumn weather in Vieux Fort
- Winter weather in Vieux Fort
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Vieux Fort
Vieux Fort, Saint Lucia boasts of a tropical monsoon climate, more formally classified with the Am code under the Köppen climate classification system. Geographically, the location is nestled in the southernmost tip of the island country, exposed to the Atlantic Ocean's easterly trade winds.
The climatic conditions in Vieux Fort are relatively consistent throughout the year, with minor fluctuations observed in terms of temperature, rainfall, and humidity. On average, the city has monthly high temperatures ranging from 27.1°C (80.8°F) to 29.5°C (85.1°F) and low temperatures from 25.3°C (77.5°F) to 27.6°C (81.7°F). Such consistency signifies an absence of extreme hot or cold weather, which is characteristic of a tropical climate.
Regarding the hydrological aspects of its climate, the region experiences moderate rainfall throughout the year, which intensifies during the summer months from June to October. The rainfall varies from 18mm (0.71") in February to its peak of 73mm (2.87") in October. This higher precipitation coincides with an increase in average relative humidity, from 74% at the start of the year, peaking at 77% in July.
In terms of sunlight availability, the city has a reasonably consistent amount of daylight throughout the year, ranging from 11.3 hours in December to a peak of 12.9 hours in June. The sunlight hours follow suit, varying from a low of 6.6 hours in December to a high of 10.4 hours in August. The consistency in these elements contributes to the city's warm climate.
Wind patterns in Vieux Fort also display a diverse pattern, with wind speed hovering from 18.3km/h (11.4mph) in September to a higher rate of 26.9km/h (16.7mph) in February.
The climatic conditions in Vieux Fort are relatively consistent throughout the year, with minor fluctuations observed in terms of temperature, rainfall, and humidity. On average, the city has monthly high temperatures ranging from 27.1°C (80.8°F) to 29.5°C (85.1°F) and low temperatures from 25.3°C (77.5°F) to 27.6°C (81.7°F). Such consistency signifies an absence of extreme hot or cold weather, which is characteristic of a tropical climate.
Regarding the hydrological aspects of its climate, the region experiences moderate rainfall throughout the year, which intensifies during the summer months from June to October. The rainfall varies from 18mm (0.71") in February to its peak of 73mm (2.87") in October. This higher precipitation coincides with an increase in average relative humidity, from 74% at the start of the year, peaking at 77% in July.
In terms of sunlight availability, the city has a reasonably consistent amount of daylight throughout the year, ranging from 11.3 hours in December to a peak of 12.9 hours in June. The sunlight hours follow suit, varying from a low of 6.6 hours in December to a high of 10.4 hours in August. The consistency in these elements contributes to the city's warm climate.
Wind patterns in Vieux Fort also display a diverse pattern, with wind speed hovering from 18.3km/h (11.4mph) in September to a higher rate of 26.9km/h (16.7mph) in February.
The best time to visit Vieux Fort
Whilst Vieux Fort offers a welcoming climate throughout the year, the optimal time for a visit relies on personal preferences. For those desiring warm weather with less rainfall and humidity, the period from January to April is ideal. During these months, rainfall is lower, with values from 18mm (0.71") to 29mm (1.14"), and lower humidity ranging between 74% to 75%.
The worst time to visit Vieux Fort
If high precipitation and humidity is a potential deterrent, planning a visit to Vieux Fort from July to October might be less comfortable. These months experience the highest rainfall, peaking at 73mm (2.87") and the highest relative humidity, reaching 77% in July.
Spring weather in Vieux Fort
In Vieux Fort, spring, spanning from March to May, witnesses a slight increase in temperature, with average highs ranging from 27.1°C (80.8°F) to 28.4°C (83.1°F) and lows from 25.4°C (77.7°F) to 26.7°C (80.1°F). Rainfall begins to rise from March onward, reaching 33mm (1.3") in May. Relative humidity remains casual in the lower to mid-seventies percentile.
Summer weather in Vieux Fort
Summer in Vieux Fort extends from June to August. The weather becomes significantly wetter, with rainfall amounts ranging from 46mm (1.81") to 72mm (2.83"). Temperatures are also at their peak during these months, with the maximum average temperature touching 28.9°C (84°F) in August. Wind speed also experiences a noticeable increase during these months.
Autumn weather in Vieux Fort
Autumn months include September to November. These months continue to experience high rainfall with values between 64mm (2.52") and 73mm (2.87"). There's a slight drop in temperatures with maximum average temperatures oscillating from 29.5°C (85.1°F) to 28.7°C (83.7°F). Wind speed becomes milder, decreasing from 24.1km/h (15mph) in August to 19.8km/h (12.3mph) in October.
Winter weather in Vieux Fort
The winter period in Vieux Fort, which is December to February, is characterized by decreased rainfall, with values fluctuating from 37mm (1.46") to 24mm (0.94"). The temperature follows a downward trend too, with average high temperatures ranging from 27.1°C (80.8°F) in January to 27.9°C (82.2°F) in February. Wind speed experiences a noticeable surge during these months, reaching its peak of 26.9km/h (16.7mph) in February. Despite this, the relative mildness of Vieux Fort's tropical climate continues to make it a hospitable destination for visitors.
Weather in January
Even though the new year begins, the tropical climate in Vieux Fort, Saint Lucia remains. With a high of 27.1°C (80.8°F) and a low of 25.6°C (78.1°F), January transitions virtually indiscernibly weather-wise. Light showers can be expected while the breeze carries the scent of the ocean inland. Weather in January »
Weather in February
In February, Vieux Fort residents experience a minor temperature drop, with the highest and lowest temperatures easing off by 0.3°C (32.5°F). This month is slightly drier than January, making the days ideal for beach outings. Weather in February »
Weather in March
While the rest of the world starts experiencing Spring in March, Vieux Fort maintains its standard tropical climate. The difference between the high and low temperatures has increased by 0.1°C (32.2°F) since February. The increased hours of daylight contribute to more time for sun-bathing while beach-goers are welcomed by slightly warmed sea waters. Weather in March »
Weather in April
April welcomes an increase in both temperature and rainfall rates in Vieux Fort. The highest temperature now rises to 27.7°C (81.9°F), while the lowest reads 25.9°C (78.6°F). Sunshine hours increase, promoting glorious sunrises and extended evenings. Weather in April »
Weather in May
While May is the doorway to summer for most, it ushers in a warmer and wetter phase for Vieux Fort. With the highest temperature seeing an uptick to 28.4°C (83.1°F) and an appreciable rise in the rainfall measuring 33mm (1.3"), May experiences noticeable changes. Weather in May »
Weather in June
June offers the highest temperature so far for the year, reaching 28.6°C (83.5°F) at its peak in Vieux Fort, Saint Lucia. This month sees a jump in rainfall, indicating the onset of the Caribbean Hurricane season. Despite the increased rains, there are plenty of sunshine hours left for those looking to soak up the sun. Weather in June »
Weather in July
July is similar to June in terms of high temperatures, but these remain consistent even at night. This month records the highest rainfall for the year, with 72mm (2.83") contributing to the lush landscape of Saint Lucia. Despite the increased rainfall, the ample sunshine keeps the tropical vibe alive in Vieux Fort. Weather in July »
Weather in August
August shows another peak of both temperatures and rainfall in Vieux Fort. Peak temperatures are recorded at 28.9°C (84°F) while the sea temperatures rise to the year’s maximum of 29°C (84.2°F). Despite the frequent showers, tourists and locals still have ample sunshine each day for leisure activities. Weather in August »
Weather in September
September is the hottest month in Vieux Fort, with temperatures climbing to 29.5°C (85.1°F). Likewise, historically, Saint Lucia residents face significant showers of about 64mm (2.52"). Simultaneously, the sea temperatures start to decrease but remain warm for swimming and other water activities. Weather in September »
Weather in October
In October, temperatures start to cool off, dropping slightly to an average high of 28.7°C (83.7°F). Due to a noticeable increase in rain, this month could be considered the start of the rainy season for Vieux Fort, Saint Lucia. Weather in October »
Weather in November
By November, the weather in Vieux Fort begins its transition into the drier season. The temperatures continue their downward trend, making for cooler days, while the rainfall also decreases to 54mm (2.13"). However, the amount of daylight dips, indicating shorter days are on the horizon. Weather in November »
Weather in December
Finally, December brings with it cooler temperatures, falling to the lowest of the year at 26.2°C (79.2°F). In contrast to November, the rain lessens further, making for drier days in Vieux Fort. While daylight hours minimize, balmy afternoons and cooler evenings make for comfortable weather conditions. Weather in December »
Updated: Jan 31, 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
What is the least humid month in Vieux Fort?
January and February, with an average relative humidity of 74%, are the least humid months.
How much does it rain in Vieux Fort?
Throughout the year, in Vieux Fort, there are 232.4 rainfall days, and 542mm (21.34") of precipitation is accumulated.
What are the months with the highest UV index in Vieux Fort?
The months with the highest UV index in Vieux Fort, Saint Lucia, are January through December, with an average maximum UV index of 7.
What is the month with the lowest UV index in Vieux Fort?
The months with the lowest UV index in Vieux Fort, Saint Lucia, are January through December, with an average maximum UV index of 7.
What month is the coldest in Vieux Fort?
Vieux Fort's coldest weather arrives in February, when temperatures average a high of 26.8°C (80.2°F) and a low of 25.3°C (77.5°F).
What is the driest month in Vieux Fort?
The month with the least rainfall in Vieux Fort, Saint Lucia, is February, when the rain falls for 15 days and typically collects 18mm (0.71") of precipitation.
When is the sea coldest in Vieux Fort?
February and March, with an average sea temperature of 27.2°C (81°F), are months with the coldest seawater.
When are the longest days in Vieux Fort?
With an average of 12h and 54min of daylight, June has the longest days of the year.
What is the most humid month in Vieux Fort?
The most humid month is July, with an average relative humidity of 77%.
What month has the most sunshine in Vieux Fort?
The month with the most sunshine is August, with an average of 10.4h of sunshine.
What is the warmest month in Vieux Fort?
September and October, with an average high-temperature of 29.5°C (85.1°F), are marked as the warmest months in Vieux Fort, Saint Lucia.
When is the sea warmest in Vieux Fort?
With an average sea temperature of 29.6°C (85.3°F), September is the month with the warmest seawater in Vieux Fort.
What is the wettest month in Vieux Fort?
October is the month with the most rainfall in Vieux Fort, Saint Lucia. Rain falls for 19.4 days and accumulates 73mm (2.87") of precipitation.
What is the month with the shortest days in Vieux Fort?
With an average of 11h and 18min of daylight, December has the shortest days of the year.
Is there Daylight Saving Time (DST) in Vieux Fort?
Vieux Fort does not utilize Daylight Saving Time (DST). AST timezone is used throughout the entire year.
What is the month with the least sunshine in Vieux Fort?
The month with the least sunshine is December, with an average of 6.6h of sunshine.
Average temperature
Vieux Fort, 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
Vieux Fort, 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
Vieux Fort, 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
Vieux Fort, 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
Vieux Fort, 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
Vieux Fort, 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 sea temperature
Vieux Fort, Saint Lucia
The best month for swimming (with the highest average sea temperature) is September (29.6°C).
The coldest months (with the lowest average sea temperature) are February and March (27.2°C).
Average daylight / Average sunshine
Vieux Fort, Saint Lucia
- Average daylight in January:
11h and 2min - Average daylight in February:
11h and 4min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 2min - Average daylight in May:
12h and 5min - Average daylight in June:
12h and 5min
- Average daylight in July:
12h and 5min - Average daylight in August:
12h and 4min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 5min - Average daylight in November:
11h and 3min - Average daylight in December:
11h and 2min
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 2min - Average sunshine in February:
8h and 4min - Average sunshine in March:
8h and 4min - Average sunshine in April:
10h and 1min - Average sunshine in May:
10h and 0min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
10h and 1min - Average sunshine in October:
8h and 3min - Average sunshine in November:
6h and 5min - Average sunshine in December:
6h and 4min
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
Vieux Fort, 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
Vieux Fort, 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
Vieux Fort, 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
Vieux Fort, 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).
Vieux Fort, Saint Lucia
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