Climate and monthly weather forecastMarigot Bay, Saint Lucia
Climate and monthly weather forecast
The climate of Marigot Bay
Marigot Bay, Saint Lucia, is classified as having a tropical rainforest climate, according to the Köppen climate classification. Located on the western coastline of Saint Lucia, it experiences conditions typical of the tropical regions.Throughout the year, Marigot Bay witnesses narrow variations in temperature, ranging from 25.1°C (77.2°F) to 30.3°C (86.5°F). A close observation of the data suggests a gradual rise and drop in temperatures following the seasonal patterns. The warmest months typically lie between May and September, with peak temperatures reaching 30.3°C (86.5°F) in September. On the other hand, the months of January, February, and March are comparatively cooler with the lowest temperature dropping to 25.1°C (77.2°F).
Aside from temperatures, rainfall patterns in Marigot Bay also follow a distinctive trend. The region sees rainfall almost every month, but the intensity of precipitation varies. The months from June to November experience significantly higher rainfall, peaking at 82mm (3.23") in August. Conversely, the months of January, February, and March sees less rainfall, dropping to a low of 19mm (0.75") in February.
Marigot Bay is also slightly more humid during the months from May to November due to the elevated rainfall during this period. Coupled with cloudy conditions around 47 to 48% of the time, these conditions lead to a unique climate phenomenon in Marigot Bay.
The best time to visit Marigot Bay
Given its tropical rainforest climate, the best time to visit Marigot Bay is during the period from December to April. During these months, the region experiences relatively lower rainfall and temperatures, making it quite pleasant for tourists. Furthermore, visitors can enjoy longer sunshine hours due to a decrease in cloud cover during these months, resulting in better conditions for outdoor activities. The UV index remains consistent at 7 throughout the year, providing adequate warmth sans extremities.The worst time to visit Marigot Bay
Considering the increase in rainfall and humidity levels, the months of June to November may not be an ideal period to visit Marigot Bay. Additionally, temperatures during these months are on the higher side, reaching up to 30.3°C (86.5°F) in September, which may present discomfort to some travelers.Spring weather in Marigot Bay
Spring, from March to May, brings relatively warmer temperatures to Marigot Bay. During this period, temperatures can hit a high of 28.8°C (83.8°F) in May. While rainfall begins to increase in April, it is in manageable amounts, ensuring pleasant weather conditions for outdoor activities. Daylight hours also start to extend significantly, ensuring ample time for outdoor explorations.Summer weather in Marigot Bay
June to August marks the summer months in Marigot Bay, and the region sees a considerable rise in temperature and precipitation levels. The temperatures during this period escalate to the high 20s to early 30s°C. Meanwhile, rainfall reaches its peak with figures rising to 82mm (3.23") in August, accompanied by an increase in cloud cover and humidity.Autumn weather in Marigot Bay
Autumn in Marigot Bay, from September to November, is marked by a slight drop in temperatures, moving to the late 20s°C. The amount of rainfall remains high during these months, maintaining high humidity levels. However, daylight departs a bit earlier compared to the earlier months, leading to shorter days.Winter weather in Marigot Bay
Winter in Marigot Bay, from December to February, sees the temperature dipping to its annual low, falling to 25.1°C (77.2°F). The month of February witnesses the least amount of rainfall, reducing the overall humidity in the area. Although cloud cover tends to increase, the UV index remains consistent at 7 throughout the year, offering just the right amount of warmth. Combined with a reduced wind speed, these winter months offer pleasing weather conditions in Marigot Bay.Weather in January
January is the onset of the new year in Marigot Bay, Saint Lucia and the weather remains relatively stable. The consistency in weather parameters provides a welcoming start to the year. With a peak of 27.5°C (81.5°F) and a minimum of 25.1°C (77.2°F), temperatures hover moderately throughout the month. Weather in January »Weather in February
Moving into February, the weather conditions in Marigot Bay, Saint Lucia show slight changes from the preceding month. With visibility remaining at a clear 10 kilometers, sightseeing and outdoor activities continue to thrive. February experiences less rainfall 19mm (0.75") compared to the 26mm (1.02") recorded in January, increasing the prospects for clear skies. Weather in February »Weather in March
March displays similar weather conditions to February with relatively stable temperature and humidity levels. The most notable change is the average number of daylight hours, which increases from February’s 11.7 hours to 12.1 hours. Weather in March »Weather in April
Transitioning into April, Marigot Bay witnesses a slight rise in temperature measuring 28.3°C (82.9°F) on the higher end. April signifies the progression towards warmer months, with the daylight hours extending further to 12.5 hours. Weather in April »Weather in May
May marks the commencement of the warm season in Marigot Bay, with noticeable changes in the weather scenario. The increased sea temperatures of 28°C (82.4°F) are appealing to enthusiasts of water sports and beach activities. A fascinating change in May is the spike in rainfall, with a marked increase of 36mm (1.42") compared to April's 28mm (1.1"), hinting at the approach of the rainy season. Weather in May »Weather in June
June in Marigot Bay hints at the peak of the warm season, with weather parameters revealing a climb from the preceding month. The intensifying heat is reflected in the average high temperature of 29.3°C (84.7°F), a prominent jump from May's 28.8°C (83.8°F). Weather in June »Weather in July
July is marked by a continuation of the wet season characterized by frequent rainfall amounting to a substantial 74mm (2.91") over 26.5 days in the month. At the same time, the temperatures peak, with July boasting the highest average temperature in the first half of the year at 29.4°C (84.9°F). Weather in July »Weather in August
August brings with it the full brunt of the wet season with the heaviest rainfall recorded, reaching up to 82mm (3.23") over 25.9 days. However, the average temperature remains consistent from July to around 29.8°C (85.6°F), keeping the climate warm. Weather in August »Weather in September
September marks a decline in both the temperature and intensity of rainfall compared to August. Notable is the dramatic decrease in rainfall from the previous month's high 82mm (3.23") to a more moderate 63mm (2.48") over 20.3 days. Weather in September »Weather in October
October sees a further drop in rainfall and a marginal dip in temperatures as compared to September, signaling further the onset of dry conditions. However, the sea temperatures hold steady, maintaining the attraction of water-based activities. Weather in October »Weather in November
November continues the trend of declining rainfall and a slight dip in temperature range in Marigot Bay, marking a step further into the dry season. Despite the start of the cooler season, the average sea temperature remains inviting at 28°C (82.4°F) and the daylight hours are still long enough to support outdoor activities. Weather in November »Weather in December
December brings a further drop in rainfall, down to 35mm (1.38"), a significant reduction compared to the wet-season peak in August. Meanwhile, the shifting weather patterns push the average high temperature down to 28.2°C (82.8°F), lower than November's 29.2°C (84.6°F). 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
Marigot Bay experiences the lowest of its temperatures in January and February, when the average high-temperatures rise to 27.5°C (81.5°F).
The months with the lowest humidity in Marigot Bay, Saint Lucia, are January through March and September, with an average relative humidity of 73%.
Throughout the year, there are 255.2 rainfall days, and 560mm (22.05") of precipitation is accumulated.
January through April, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater.
The months with the highest UV index in Marigot Bay, Saint Lucia, are January through May, July through December, with an average maximum UV index of 7.
The month with the least rainfall is February, when the rain falls for 16.4 days and typically collects 19mm (0.75") of precipitation.
With an average of 9.8h of sunshine, April has the most sunshine of the year.
The months with the highest humidity are May through August and November, with an average relative humidity of 75%.
June has the longest days of the year in Marigot Bay, Saint Lucia, with an average of 12h and 54min of daylight.
With an average maximum UV index of 6, June is the month with the lowest UV index.
August is the month with the most rainfall in Marigot Bay, Saint Lucia. Rain falls for 25.9 days and accumulates 82mm (3.23") of precipitation.
September, recognised by an average high temperature of 30.3°C (86.5°F) and a low of 27°C (80.6°F), is Marigot Bay's warmest month.
September and October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Marigot Bay, Saint Lucia.
The month with the shortest days in Marigot Bay, Saint Lucia, is December, with an average of 11h and 18min of daylight.
Marigot Bay, Saint Lucia, does not utilize Daylight Saving Time (DST). AST timezone is used throughout the entire year.
With an average of 6.4h of sunshine, December has the least sunshine of the year in Marigot Bay.
Average temperature
Marigot Bay, Saint Lucia
The warmest month (with the highest average high temperature) is September (30.3°C).
The months with the lowest average high temperature are January and February (27.5°C).
The month with the highest average low temperature is October (27.2°C).
The coldest month (with the lowest average low temperature) is March (25°C).
Average pressure
Marigot Bay, Saint Lucia
- Average pressure in January:
1014.6mbar - Average pressure in February:
1014.6mbar - Average pressure in March:
1014.5mbar - Average pressure in April:
1014.1mbar - Average pressure in May:
1014.3mbar - Average pressure in June:
1015mbar
- Average pressure in July:
1014.7mbar - Average pressure in August:
1013.5mbar - Average pressure in September:
1012.6mbar - Average pressure in October:
1011.7mbar - Average pressure in November:
1011.4mbar - Average pressure in December:
1013.4mbar
The month with the highest atmospheric pressure is June (1015mbar).
The month with the lowest atmospheric pressure is November (1011.4mbar).
Average wind speed
Marigot Bay, Saint Lucia
- Average wind speed in January:
24.5km/h - Average wind speed in February:
24.7km/h - Average wind speed in March:
22.7km/h - Average wind speed in April:
21.8km/h - Average wind speed in May:
22.3km/h - Average wind speed in June:
24.3km/h
- Average wind speed in July:
23.5km/h - Average wind speed in August:
19.9km/h - Average wind speed in September:
16.7km/h - Average wind speed in October:
18km/h - Average wind speed in November:
19.7km/h - Average wind speed in December:
22.5km/h
The windiest month (with the highest average wind speed) is February (24.7km/h).
The calmest month (with the lowest average wind speed) is September (16.7km/h).
Average humidity
Marigot Bay, Saint Lucia
The months with the highest relative humidity are May, June, July, August and November (75%).
The months with the lowest relative humidity are January, February, March and September (73%).
Average rainfall
Marigot Bay, Saint Lucia
The wettest month (with the highest rainfall) is August (82mm).
The driest month (with the least rainfall) is February (19mm).
Average rainfall days
Marigot Bay, Saint Lucia
- Average rainfall days in January:
19.2 days - Average rainfall days in February:
16.4 days - Average rainfall days in March:
18.8 days - Average rainfall days in April:
20.3 days - Average rainfall days in May:
22.9 days - Average rainfall days in June:
23.8 days
- Average rainfall days in July:
26.5 days - Average rainfall days in August:
25.9 days - Average rainfall days in September:
20.3 days - Average rainfall days in October:
21 days - Average rainfall days in November:
21 days - Average rainfall days in December:
19.1 days
The month with the highest number of rainy days is July (26.5 days).
The month with the least rainy days is February (16.4 days).
Average sea temperature
Marigot Bay, Saint Lucia
The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (27°C).
Average daylight / Average sunshine
Marigot Bay, 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 0min - Average sunshine in February:
8h and 30min - Average sunshine in March:
8h and 18min - Average sunshine in April:
9h and 48min - Average sunshine in May:
9h and 30min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
9h and 18min - Average sunshine in August:
9h and 42min - Average sunshine in September:
9h and 36min - Average sunshine in October:
8h and 6min - Average sunshine in November:
6h and 30min - Average sunshine in December:
6h and 24min
The month with the most sunshine is April (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days
Marigot Bay, Saint Lucia
- Average sunshine days in January:
7.8 days - Average sunshine days in February:
7.1 days - Average sunshine days in March:
7.4 days - Average sunshine days in April:
5.1 days - Average sunshine days in May:
2.8 days - Average sunshine days in June:
1.5 days
- Average sunshine days in July:
0.8 days - Average sunshine days in August:
1.3 days - Average sunshine days in September:
5.2 days - Average sunshine days in October:
5.5 days - Average sunshine days in November:
4.4 days - Average sunshine days in December:
7.3 days
The month with the most sunshine days is January (7.8 days).
The month with the least sunshine days is July (0.8 days).
Average UV index
Marigot Bay, Saint Lucia
The months with the highest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is June (UV index 6).
Average cloud cover
Marigot Bay, Saint Lucia
The months with the most cloud cover are June and July (Cloud cover 48).
The month with the least cloud cover is February (Cloud cover 38).
Average visibility
Marigot Bay, 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).
