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Contents
- The climate of Waterloo
- The best time to visit Waterloo
- The worst time to visit Waterloo
- Spring weather in Waterloo
- Summer weather in Waterloo
- Autumn weather in Waterloo
- Winter weather in Waterloo
- 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 daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Waterloo
Located on the island of Saint Vincent and the Grenadines, Waterloo falls under the Af Köppen climate classification, known for its characteristic tropical rainforest climate. The city features consistently high temperatures, high humidity, and substantial rainfall throughout the year, along with minimal temperature fluctuations from month to month.
During the course of the year, the temperature rarely deviates from a warming cycle with highs from 26.3°C (79.3°F) to 28.7°C (83.7°F), and lows from 25.3°C (77.5°F) to 27.9°C (82.2°F). This shows a comparably minor change in the diurnal temperature difference. Furthermore, the area experiences a high level of humidity, with relative humidity staying at 75% to 78%, retaining a fairly moist environment all year round.
Being in the tropics, Waterloo experiences generous rainfall. Starting from 12mm (0.47") in February, rainfall escalates progressively throughout the year, climaxing at around 40mm (1.57") in November. This rate of precipitation is paired with an increasing number of rainfall days, with the most notable increase seen from 8.7 days in February to 16.4 days in July.
The extent of daylight ranges from 11.4 hours in December to 12.9 hours in June. Correspondingly, the number of sunshine hours varies between 6.6 hours in December and 10.5 hours in August. However, the percentage of cloud cover is relatively constant throughout the year, fluctuating between 35% and 44%.
During the course of the year, the temperature rarely deviates from a warming cycle with highs from 26.3°C (79.3°F) to 28.7°C (83.7°F), and lows from 25.3°C (77.5°F) to 27.9°C (82.2°F). This shows a comparably minor change in the diurnal temperature difference. Furthermore, the area experiences a high level of humidity, with relative humidity staying at 75% to 78%, retaining a fairly moist environment all year round.
Being in the tropics, Waterloo experiences generous rainfall. Starting from 12mm (0.47") in February, rainfall escalates progressively throughout the year, climaxing at around 40mm (1.57") in November. This rate of precipitation is paired with an increasing number of rainfall days, with the most notable increase seen from 8.7 days in February to 16.4 days in July.
The extent of daylight ranges from 11.4 hours in December to 12.9 hours in June. Correspondingly, the number of sunshine hours varies between 6.6 hours in December and 10.5 hours in August. However, the percentage of cloud cover is relatively constant throughout the year, fluctuating between 35% and 44%.
The best time to visit Waterloo
Given the constant warm temperatures and high humidity, the optimum time for a visit to Waterloo would predominantly hinge on the individual's tolerance for rainfall. Months of February and March show the lowest precipitation levels at 12mm (0.47") and 14mm (0.55") respectively, coupled with a lesser number of rainy days, making them the most appealing months for travel, especially for outdoor activities. During these months, visitors can also expect longer periods of sunlight, with an average of 11.7 hours and 12.1 hours of daylight respectively.
The worst time to visit Waterloo
Conversely, the months with the highest levels of rainfall are November and October, with precipitation figures hitting as high as 40mm (1.57") and 37mm (1.46"). Correspondingly, these months record the highest number of rainfall days at 15.5 and 16 respectively, indicating a higher probability of encountering rain. It might make outdoor activities less enjoyable, therefore it would not necessarily be the best period to visit Waterloo.
Spring weather in Waterloo
With spring arriving in Waterloo, March welcomes 10.6 rainfall days on average, and rainfall volume of 14mm (0.55"). These conditions progress in April and May with more rainfall days and volume, counting 12.4 and 14.4 days alongside 17mm (0.67") and 18mm (0.71") of precipitations. The temperatures retain their consistency with highs steeping from 26.5°C (79.7°F) in March to 27.8°C (82°F) in May, and lows step up from 25.4°C (77.7°F) to 26.9°C (80.4°F). Despite the increase in precipitation, this season offers a decent number of sunshine hours, standing at 8.7 hours in March, and escalating to 10.1 hours by May.
Summer weather in Waterloo
The summer in Waterloo sees the highest temperatures, with the mercury soaring from 28.1°C (82.6°F) in June to a notable 28.7°C (83.7°F) in August. Corresponding low temperatures also mark their peak, going from 27°C (80.6°F) to 27.9°C (82.2°F) in the same period. The rainfall days and volume both increase substantially during these months, with July recording the highest at 16.4 days and 30mm (1.18"), before tapering down again in August to 16.3 days and 33mm (1.3"). Sunshine hours remain high, hitting a peak of 10.5 hours in August.
Autumn weather in Waterloo
Across September, October, and November, Waterloo experiences a dip in temperature highs from 28.7°C (83.7°F) to 27.9°C (82.2°F), while lows decline slightly from 27.9°C (82.2°F) to 27.2°C (81°F). Rainfall volume peaks during this time, culminating at 40mm (1.57") in November, with an associated rise in rainy days to 15.5. This season also indicates a downturn in the number of sunshine hours, reducing to 6.7 hours by November.
Winter weather in Waterloo
Winter months in Waterloo are characterized by a mild decrease in average high temperatures, shrinking from 28.6°C (83.5°F) in December to 27.4°C (81.3°F) in February, along with low temperatures moving from 27.7°C (81.9°F) to 25.3°C (77.5°F) correspondingly. The rainfall dips progressively throughout these months, hitting a record low of 12mm (0.47") in February, and rainy days decrease to 8.7. The winter months also witness the shortest periods of daylight, flooring at 11.4 hours in both December and February, while sunshine hours are the lowest of the year in December with 6.6 hours on average.
Weather in January
January in Waterloo, Saint Vincent and the Grenadines, presents momentarily reprieve from December’s showers, with rainfall figures dropping to 16mm (0.63") over 11.7 days. A comforting combination of moderate temperatures, precipitation and cloud cover characterizes the local weather. Weather in January »
Weather in February
Moving into February, the weather still carries warmth left by January. With the sun shining over 15.3 days and an average of 8.8 sunshine hours per day, February touts a slightly longer and brighter daylight period. However, maintaining a stable weather pattern, the city experiences 12mm (0.47") rainfall spread over 8.7 days. Weather in February »
Weather in March
The transition to March sees the weather maintain its consistency. Despite the wind calming down to an average speed of 25.9km/h (16.1mph), the city witnesses a slight increase in rainfall at 14mm (0.55") over 10.6 days. Light rain showers coupled with a stable temperature range keep the climate pleasant. Weather in March »
Weather in April
April ushers in a distinct change in the climate, with rainfall volumes rising to 17mm (0.67") and stretching across 12.4 days. Yet, the sun holds strong, with 10.1 hours of sunshine adorning 13.8 days of the month. As the month progresses, the relative humidity starts creeping up, indicating the onset of a slightly muggier atmosphere. Weather in April »
Weather in May
May stands as the prelude to the upcoming heat of the summer season. With the high temperatures rising to reach 27.8°C (82°F) and the low temperatures maintaining at 26.9°C (80.4°F), the ambient temperature balance in Waterloo sways towards heat. Weather in May »
Weather in June
June heralds the summer season in full swing in Waterloo, as temperatures rise to 28.1°C (82.6°F). The increased heat is complemented by an equally significant escalation in rainfall. With scattered showers gracing the city, June takes on a tropical allure. Weather in June »
Weather in July
The balmy summer weather continues into July, with a mild increase in average temperatures. The rainfall peaks substantially at 30mm (1.18") across 16.4 days, confirming its position as the wettest month in Waterloo's calendar. However, this does not deter the sun from making its presence known. Weather in July »
Weather in August
In August, Waterloo experiences a slight dip in humidity while the temperatures and rainfall maintain their summery standards. The wind speed reduces to 22.5km/h (14mph) making the climate warmer and reducing the coastal breeze. Weather in August »
Weather in September
September in Waterloo sees a notable decrease in wind speed to 19.7km/h (12.2mph) and a drop in rainfall to 26mm (1.02") across 14.9 days. The weather finds a steady balance with the temperature hovering around the late 20s°C. Weather in September »
Weather in October
October signals the gradual transition from the summer season to milder weather conditions. Noteworthy in October is the increase in the rain patterns with the city receiving 37mm (1.46") rainfall over 16 days. The overall temperature remains stable, while wind speed picks pace to reach 21.1km/h (13.1mph) bringing in the occasional cool breeze. Weather in October »
Weather in November
As November sets in, Waterloo receives the highest quantity of rainfall for the year at 40mm (1.57") over 15.5 days. The temperature tends towards the cooler side with the onset of the city’s mild winter season. Coupled with this is a decrease in daylight hours, giving a sense of shorter days. Weather in November »
Weather in December
December in Waterloo witnesses a comfortable mix of mild winter temperatures and a reduction in rainfall to 23mm (0.91") across 14.9 days. The wind speed touches heights of 26.6km/h (16.5mph) making the weather cooler and fresher. Weather in December »
[Resources]Frequently asked questions
How much does it rain in Waterloo?
In Waterloo, Saint Vincent and the Grenadines, during the entire year, the rain falls for 164.4 days and collects up to 289mm (11.38") of precipitation.
What is the month with the highest UV index in Waterloo?
The months with the highest UV index in Waterloo are January through December, with an average maximum UV index of 7.
What are the months with the lowest UV index in Waterloo?
January through December, with an average maximum UV index of 7, are months with the lowest UV index in Waterloo, Saint Vincent and the Grenadines.
What is the coldest month in Waterloo?
February is the month that records the lowest temperatures in Waterloo, with averages ranging from a high of 26.3°C (79.3°F) to a low of 25.5°C (77.9°F).
What is the least humid month in Waterloo?
With an average relative humidity of 75%, February is the least humid month in Waterloo, Saint Vincent and the Grenadines.
What is the driest month in Waterloo?
February is the month with the least rainfall in Waterloo, Saint Vincent and the Grenadines. Rain falls for 8.7 days and accumulates 12mm (0.47") of precipitation.
What is the most humid month in Waterloo?
The months with the highest humidity in Waterloo, Saint Vincent and the Grenadines, are May through July, with an average relative humidity of 78%.
When are the longest days in Waterloo?
With an average of 12h and 54min of daylight, June has the longest days of the year in Waterloo, Saint Vincent and the Grenadines.
What month has the most sunshine in Waterloo?
August has the most sunshine of the year, with an average of 10.5h of sunshine.
What part of the year is the hottest in Waterloo?
September stands out as Waterloo's warmest month, with temperatures ranging between an average high of 28.7°C (83.7°F) and a low of 27.9°C (82.2°F).
What is the wettest month in Waterloo?
The month with the most rainfall in Waterloo, Saint Vincent and the Grenadines, is November, when the rain falls for 15.5 days and typically aggregates up to 40mm (1.57") of precipitation.
What is the month with the shortest days in Waterloo?
The month with the shortest days in Waterloo, Saint Vincent and the Grenadines, is December, with an average of 11h and 24min of daylight.
Is there Daylight Saving Time (DST) in Waterloo?
Waterloo, Saint Vincent and the Grenadines, does not utilize Daylight Saving Time (DST). AST timezone is used throughout the entire year.
What is the month with the least sunshine in Waterloo?
With an average of 6.6h of sunshine, December has the least sunshine of the year.
Average temperature
Waterloo, Saint Vincent and the Grenadines
The warmest month (with the highest average high temperature) is September (28.7°C).
The month with the lowest average high temperature is February (26.3°C).
The month with the highest average low temperature is September (27.9°C).
The coldest month (with the lowest average low temperature) is January (25.3°C).
Average pressure
Waterloo, Saint Vincent and the Grenadines
- Average pressure in January:
1014.3mbar - Average pressure in February:
1014.3mbar - Average pressure in March:
1014.1mbar - Average pressure in April:
1013.8mbar - Average pressure in May:
1014mbar - Average pressure in June:
1014.6mbar
- Average pressure in July:
1014.3mbar - Average pressure in August:
1013.2mbar - Average pressure in September:
1012.3mbar - Average pressure in October:
1011.4mbar - Average pressure in November:
1011.1mbar - Average pressure in December:
1013mbar
The month with the highest atmospheric pressure is June (1014.6mbar).
The month with the lowest atmospheric pressure is November (1011.1mbar).
Average wind speed
Waterloo, Saint Vincent and the Grenadines
- Average wind speed in January:
28km/h - Average wind speed in February:
28.4km/h - Average wind speed in March:
25.9km/h - Average wind speed in April:
24.9km/h - Average wind speed in May:
25.4km/h - Average wind speed in June:
27.4km/h
- Average wind speed in July:
26km/h - Average wind speed in August:
22.5km/h - Average wind speed in September:
19.7km/h - Average wind speed in October:
21.1km/h - Average wind speed in November:
23.3km/h - Average wind speed in December:
26.6km/h
The windiest month (with the highest average wind speed) is February (28.4km/h).
The calmest month (with the lowest average wind speed) is September (19.7km/h).
Average humidity
Waterloo, Saint Vincent and the Grenadines
The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is February (75%).
Average rainfall
Waterloo, Saint Vincent and the Grenadines
The wettest month (with the highest rainfall) is November (40mm).
The driest month (with the least rainfall) is February (12mm).
Average rainfall days
Waterloo, Saint Vincent and the Grenadines
- Average rainfall days in January:
11.7 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
12.4 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
12.6 days
- Average rainfall days in July:
16.4 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
14.9 days - Average rainfall days in October:
16 days - Average rainfall days in November:
15.5 days - Average rainfall days in December:
14.9 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (8.7 days).
Average daylight / Average sunshine
Waterloo, Saint Vincent and the Grenadines
- 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 4min - 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 24min).
- Average sunshine in January:
7h and 2min - Average sunshine in February:
8h and 5min - Average sunshine in March:
8h and 4min - Average sunshine in April:
10h and 1min - Average sunshine in May:
10h and 1min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 3min - Average sunshine in September:
10h and 2min - Average sunshine in October:
8h and 4min - Average sunshine in November:
6h and 4min - Average sunshine in December:
6h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days
Waterloo, Saint Vincent and the Grenadines
- Average sunshine days in January:
14.2 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
16.7 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
10.1 days - Average sunshine days in August:
10.7 days - Average sunshine days in September:
11.5 days - Average sunshine days in October:
12.6 days - Average sunshine days in November:
10.7 days - Average sunshine days in December:
12.8 days
The month with the most sunshine days is March (16.7 days).
The month with the least sunshine days is July (10.1 days).
Average UV index
Waterloo, Saint Vincent and the Grenadines
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
Waterloo, Saint Vincent and the Grenadines
The month with the most cloud cover is June (Cloud cover 44).
The months with the least cloud cover are February and September (Cloud cover 35).
Average visibility
Waterloo, Saint Vincent and the Grenadines
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).
Waterloo, Saint Vincent and the Grenadines
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