Climate and monthly weather forecastGarrison, Barbados
Climate and monthly weather forecast
The climate of Garrison
Situated in the tropical zone, Garrison, Barbados, boasts a predominately Am weather classification, as per the Köppen classification: a Tropical Monsoon climate. This equatorial weather is consistent throughout the year, with monthly average temperatures fluctuating between a high of 28.9°C (84°F) and a low of 25.7°C (78.3°F). It's quite an enjoyable and consistent weather pattern where oppressive heat is not a factor.Over a year, rainfall in Garrison typically ranges from a low of 13mm (0.51") in February to a high of 126mm (4.96") in August. The driest periods usually occur from February to March, while the months from July to September see an increase in precipitation. With an annual fluctuation in humidity from 74% to 77%, the weather conditions maintain a damp tropical feel throughout the year. It's worth noting that the sea temperature also contributes to the tropical ambiance of Garrison, with typical temperatures remaining between 26°C (78.8°F) and 29°C (84.2°F).
A more persistent feature of the Garrison climate is the consistent daylight ranging from 11.4 hours to 12.9 hours, while sunshine duration varies from 6.5 hours in December to 10.2 hours in August. Another constant factor in Garrison's weather report is visibility, which consistently stands at 10km (6.2mi). As for the wind, the speed ranges from 19.4km/h (12.1mph) to 28.3km/h (17.6mph), ensuring a breezy atmosphere all year round.
The best time to visit Garrison
The best time to make a visit to Garrison would probably be during the months of February through April. During this period, the weather is at its most agreeable, with minimal rainfall and maximum sunshine hours, allowing visitors to fully experience the tropical paradise. The sea temperature remains warm between 26°C (78.8°F) and 27°C (80.6°F), perfect for water sport enthusiasts or those inclined to dip their toes in the warm water.The worst time to visit Garrison
The less favorable time to visit Garrison would be from July to September. During these months, Garrison experiences its highest rainfall with averages from 85mm (3.35") up to a peak of 126mm (4.96") in August. This period also corresponds with the highest relative humidity in the year, reaching a maximum of 77%. While the sea temperature remains above 28°C (82.4°F) during this period, the abundant rainfall and high humidity may deter some visitors.Spring weather in Garrison
Springtime in Garrison from March to May is characterized by a gradually increasing average high temperature from 26.9°C (80.4°F) to 28.3°C (82.9°F). The month of May marking the start of the monsoon season sees an increase in rainfall from 31mm (1.22") to 44mm (1.73"). The daylight increases from 12.1 hours to 12.7 hours, while sea temperatures start to warm up from 26°C (78.8°F) to 28°C (82.4°F). The spring season in Garrison is signaled by a noticeable rise in humidity from 76% to 76%.Summer weather in Garrison
Garrison's summer from June to August is marked by the wettest and most humid period of the year. The average high temperature of the season stays solid at 28.4°C (83.1°F). Rainfall levels signal the peak of the monsoon season from 63mm (2.48") in June, jumping to 126mm (4.96") in August. The average sea temperature remains warm and inviting at 28°C (82.4°F) during the season, while daylight hours peak at 12.9 hours in June.Autumn weather in Garrison
Autumn, from September to November, witnesses a gradual depreciation of rainfall from the summer highs of 103mm (4.06") in September down to 76mm (2.99") in November. Temperatures remain comfortably warm, with average highs oscillating between 28.9°C (84°F) and 28.2°C (82.8°F). Despite the decreased rainfall, humidity stays relatively stable from 76% to 77%, creating wet conditions for the season.Winter weather in Garrison
The winter season from December to February experiences a decrease in rainfall with the lowest points of 17mm (0.67") in January and 13mm (0.51") in February. Average high temperatures start from a comfortable 27.6°C (81.7°F) in December and drop slightly to 26.8°C (80.2°F) in February. Despite being the cooler part of the year, the sea temperature stays pleasantly warm from 27°C (80.6°F) to 26°C (78.8°F). Wind speeds escalate during the winter months, with December seeing the highest speed at 26.9km/h (16.7mph) making for a breezier environment.Weather in January
The first month of the year in Garrison, Barbados is marked by typically warm temperatures, higher relative humidity, and a moderate amount of rainfall. January's weather exhibits a shift as the rain decreases with relative pressure slightly lower than the previous month and daylight steadily increases. Weather in January »Weather in February
As the city transitions from January, a slight drop in rainfall and relatively lower temperatures encapsulate February's weather intricacies in Garrison. The wind condition remains quite similar, providing a respite from the moderate heat. Weather in February »Weather in March
March portrays a surge in rainfall volume, showing a slight spike from the preceding February. Sea temperatures remain warm, and the coastal winds are a delight. Notably, March witnesses a dip in wind speed to an average of 25.6km/h (15.9mph). Weather in March »Weather in April
April stands out as a transitional time in Garrison, Barbados, with noticeable changes in weather patterns. Compared to March, rainfall levels increase significantly coupled with a slight elevation in humidity. Furthermore, April's wind speed reduces to an average of 24.9km/h (15.5mph). Weather in April »Weather in May
May symbolises the onset of progressively rainier conditions in Garrison with a considerable leap in rainfall volume. When compared with the prior month, May displays warmer temperatures, alongside stable sea temperatures. Remarkably, the rainfall heightens to 44mm (1.73"), a distinctive attribute of this month. Weather in May »Weather in June
June in Garrison is a blend of a spike in rainfall and relatively high humidity levels. Contrasted with May, a significant surge in rainfall occurs, while a slight decline in sunshine durations is observed. Wind speeds reach up to 28.1km/h (17.5mph) during this month. Weather in June »Weather in July
July experiences a further hike in rainfall and moisture levels in Garrison, Barbados, continuing the rainy season. Relative to the preceding month, a slight drop in wind speeds is observed, coupled with a small surge in rainfall. Weather in July »Weather in August
August comes with a marked increase in rainfall volume, the highest throughout the year. From the previous month, there is a corresponding rise in relative humidity, but a drop in wind speed. The city records the highest rainfall in the year standing at 126mm (4.96"). Weather in August »Weather in September
September presents a marginal reduction in rainfall, though it still remains relatively high. Compared with August, rainfall volume decreases, wind speeds reduce significantly, and a slight reduction in daylight hours sets in. Weather in September »Weather in October
October showcases a drop in rainfall, though it still keeps Garrison's rainy reputation intact. The weather exhibits a relative drop in humidity levels and rainfall volume from September, with a small increase in wind speed. Wind activity moderately increases to 21.5km/h (13.4mph). Weather in October »Weather in November
As November unveils, the city of Garrison experiences a lessening in rainfall respecting the preceding month. The slight reduction in humidity and rainfall manifests a transition from the heavier rainfall experienced in October. Weather in November »Weather in December
Finally, December appreciably reduces the rainfall volume, signalling the end of the rainy season. Compared to November, a drop in rainfall is observed along with steady temperatures and a slight increase in wind speeds. Wind gusts climax at 37km/h (23mph). Weather in December »Updated: Jan 29, 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
In Garrison, during the entire year, the rain falls for 233.8 days and collects up to 706mm (27.8") of precipitation.
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.
In Garrison, the average lowest temperatures are observed in February, with a high of 26.8°C (80.2°F) and a low of 25.7°C (78.3°F).
With an average relative humidity of 74%, February is the least humid month.
The month with the least rainfall in Garrison is February, when the rain falls for 11.3 days and typically collects 13mm (0.51") of precipitation.
February and March, with an average sea temperature of 26°C (78.8°F), are months with the coldest seawater.
June through August and November, with an average relative humidity of 77%, are most humid months.
With an average of 12h and 54min of daylight, June has the longest days of the year in Garrison, Barbados.
August is the month with the most rainfall in Garrison. Rain falls for 24.9 days and accumulates 126mm (4.96") of precipitation.
The month with the most sunshine in Garrison is August, with an average of 10.2h of sunshine.
The highest point of temperatures in Garrison falls in September and October, when the average high-temperature ascends to 28.9°C (84°F).
September is the month with the warmest seawater in Garrison, with an average sea temperature of 29°C (84.2°F).
December has the shortest days of the year in Garrison, with an average of 11h and 24min of daylight.
Garrison does not utilize Daylight Saving Time (DST). AST timezone is used throughout the entire year.
With an average of 6.5h of sunshine, December has the least sunshine of the year in Garrison, Barbados.
Average temperature
Garrison, Barbados
The warmest months (with the highest average high temperature) are September and October (28.9°C).
The month with the lowest average high temperature is February (26.8°C).
The month with the highest average low temperature is October (27.8°C).
The coldest month (with the lowest average low temperature) is February (25.7°C).
Average pressure
Garrison, Barbados
- Average pressure in January:
1014.3mbar - Average pressure in February:
1014.3mbar - Average pressure in March:
1014.2mbar - Average pressure in April:
1014mbar - Average pressure in May:
1014.2mbar - Average pressure in June:
1014.8mbar
- Average pressure in July:
1014.4mbar - Average pressure in August:
1013.3mbar - Average pressure in September:
1012.5mbar - Average pressure in October:
1011.5mbar - Average pressure in November:
1011.2mbar - Average pressure in December:
1013mbar
The month with the highest atmospheric pressure is June (1014.8mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed
Garrison, Barbados
- Average wind speed in January:
28.3km/h - Average wind speed in February:
28.3km/h - Average wind speed in March:
25.6km/h - Average wind speed in April:
24.9km/h - Average wind speed in May:
25.8km/h - Average wind speed in June:
28.1km/h
- Average wind speed in July:
26.4km/h - Average wind speed in August:
22.2km/h - Average wind speed in September:
19.4km/h - Average wind speed in October:
21.5km/h - Average wind speed in November:
23.8km/h - Average wind speed in December:
26.9km/h
The windiest months (with the highest average wind speed) are January and February (28.3km/h).
The calmest month (with the lowest average wind speed) is September (19.4km/h).
Average humidity
Garrison, Barbados
The months with the highest relative humidity are June, July, August and November (77%).
The month with the lowest relative humidity is February (74%).
Average rainfall
Garrison, Barbados
The wettest month (with the highest rainfall) is August (126mm).
The driest month (with the least rainfall) is February (13mm).
Average rainfall days
Garrison, Barbados
- Average rainfall days in January:
15 days - Average rainfall days in February:
11.3 days - Average rainfall days in March:
15.1 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
21.7 days - Average rainfall days in June:
22.9 days
- Average rainfall days in July:
26.3 days - Average rainfall days in August:
24.9 days - Average rainfall days in September:
22.2 days - Average rainfall days in October:
21.9 days - Average rainfall days in November:
20.8 days - Average rainfall days in December:
16.2 days
The month with the highest number of rainy days is July (26.3 days).
The month with the least rainy days is February (11.3 days).
Average sea temperature
Garrison, Barbados
The best month for swimming (with the highest average sea temperature) is September (29°C).
The coldest months (with the lowest average sea temperature) are February and March (26°C).
Average daylight / Average sunshine
Garrison, Barbados
- Average daylight in January:
11h and 30min - Average daylight in February:
11h and 42min - 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 54min
- 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 48min - Average daylight in November:
11h and 30min - Average daylight in December:
11h and 24min
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 24min).
- Average sunshine in January:
6h and 48min - Average sunshine in February:
8h and 18min - Average sunshine in March:
8h and 54min - Average sunshine in April:
9h and 54min - Average sunshine in May:
9h and 42min - Average sunshine in June:
8h and 54min
- Average sunshine in July:
9h and 30min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 24min - Average sunshine in October:
8h and 18min - Average sunshine in November:
7h and 36min - Average sunshine in December:
6h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days
Garrison, Barbados
- Average sunshine days in January:
12.8 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
12 days - Average sunshine days in April:
9.8 days - Average sunshine days in May:
4 days - Average sunshine days in June:
1.8 days
- Average sunshine days in July:
1.3 days - Average sunshine days in August:
2.7 days - Average sunshine days in September:
5.5 days - Average sunshine days in October:
6.7 days - Average sunshine days in November:
7.9 days - Average sunshine days in December:
12.3 days
The month with the most sunshine days is February (14.3 days).
The month with the least sunshine days is July (1.3 days).
Average UV index
Garrison, Barbados
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
Garrison, Barbados
The month with the most cloud cover is June (Cloud cover 49).
The months with the least cloud cover are January and February (Cloud cover 37).
Average visibility
Garrison, Barbados
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).
