General Overview
The climate in St. Vincent & The Grenadines is tropical, a familiar fact across all Caribbean islands, and humid and hot from January through December. The weather is also distinguished by two primary seasons, a humid, hot, and, at the same time, rainy season spanning from the middle of the year through the end of it (from June to December) and a dry yet fairly cool, season from the start of the year until mid-April.
As is typical across most Caribbean regions, trade winds also affect each nation's weather and climate. In St. Vincent & The Grenadines’ case, the intensity of the northeast trade winds is quite modest while they blow steadily and constantly during the rainy season but become more irregular and may even experience some short breaks during the dry season. This, in turn, makes the atmosphere feel a little muggy.
There is also an in-between period, from mid-April to late May, when the frequency of thunderstorms increases and the temperature rises, giving a taste of the upcoming rainy and hot season.
Temperature
Temperature-wise, there are a few noticeable differences and variations in St. Vincent and The Grenadines. As seen in the table below, the mean temperature ranges between 27.8oC (82oF) in January, February, and March and 29.9oC (85.9oF) in September. In any case, the temperatures are great for outdoor activities and water sports. However, kindly note that the evenings could feel colder in the winter months, but then again, nothing that can spoil your mood or vacations.
Average Temperatures (in degrees Celsius)
|
Month |
High (°C) |
Mean (°C) |
Low (°C) |
|
January |
29.1 |
27.8 |
26.1 |
|
February |
28.9 |
27.8 |
25.8 |
|
March |
29.1 |
27.8 |
25.9 |
|
April |
29.7 |
28.5 |
26.6 |
|
May |
30.5 |
29.2 |
27.3 |
|
June |
30.3 |
29.1 |
27.2 |
|
July |
30.3 |
29 |
27.2 |
|
August |
30.7 |
29.3 |
27.6 |
|
September |
31.2 |
29.9 |
27.9 |
|
October |
30.8 |
29.4 |
27.3 |
|
November |
30.3 |
28.9 |
27 |
|
December |
29.7 |
28.3 |
26.6 |
Average Temperatures (in degrees Fahrenheit)
|
Month |
High (°F) |
Mean (°F) |
Low (°F) |
|
January |
84.3 |
82 |
78.9 |
|
February |
84.1 |
82 |
78.5 |
|
March |
84.3 |
82 |
78.7 |
|
April |
85.5 |
83.3 |
79.9 |
|
May |
86.9 |
84.5 |
81.1 |
|
June |
86.6 |
84.3 |
80.9 |
|
July |
86.6 |
84.2 |
81 |
|
August |
87.2 |
84.8 |
81.7 |
|
September |
88.1 |
85.9 |
82.3 |
|
October |
87.4 |
85 |
81.2 |
|
November |
86.5 |
84 |
80.6 |
|
December |
85.4 |
82.9 |
79.8 |
Feels-Like Temperatures
The weather is experienced in various ways than just what the digital or mercury thermometer shows. It is also affected by humidity and winds. This is why we often feel much higher temperatures (than they are) when the humidity levels are higher. Likewise, lower temperatures make us feel much colder if there are high winds. These are the perceived temperatures.
Regarding humidity, the levels in St. Vincent and The Grenadines are above average throughout the year, with November being the most humid month (69% relative humidity) and February being the least humid month (60% relative humidity).
Average Relative Humidity by Month
|
Month |
Average Relative Humidity |
|
January |
61.6% |
|
February |
60.1% |
|
March |
61.9% |
|
April |
67.7% |
|
May |
68.1% |
|
June |
67.3% |
|
July |
69.2% |
|
August |
68% |
|
September |
68.3% |
|
October |
68.5% |
|
November |
69.3% |
|
December |
64% |
Rainfall
The months with the lowest chance of rain are March, April, and May, with the first being the least likely to experience any severe downpours of the three. Kindly note that this refers to significant precipitation, which means rains that bring at least 25.5 millimeters (1 inch) of water. The months with the most rain days are July, June, and October, with an average of around 15, 13, and 12 rainy days, respectively. Finally, the period with the least precipitation is between March and May, with less than ten days of rain each month.
|
Month |
Daily Chance of Rain |
Total Precipitation (cm) |
Total Precipitation (in) |
Average Rainy Days |
|
January |
9% |
3 |
1.2 |
11.7 |
|
February |
8% |
2.3 |
0.9 |
10.1 |
|
March |
7% |
2.3 |
0.9 |
7.9 |
|
April |
6% |
2.8 |
1.1 |
9.2 |
|
May |
6% |
2.3 |
0.9 |
9.9 |
|
June |
8% |
3.6 |
1.4 |
12.9 |
|
July |
10% |
4.1 |
1.6 |
15.1 |
|
August |
10% |
4.8 |
1.9 |
11.7 |
|
September |
8% |
4.6 |
1.8 |
11.1 |
|
October |
10% |
4.8 |
1.9 |
12.2 |
|
November |
17% |
7.9 |
3.1 |
13 |
|
December |
12% |
4.8 |
1.9 |
12.4 |
Wind
The wind usually has a moderate intensity in St. Vincent and The Grenadines. The windiest months are January, February, and March, with the second being the windiest, with an average speed of nearly 13 knots (24.1 KPH or 14.9 MPH). In plainer terms, a wind with that speed is perceived as a moderate breeze. As for the period with the highest wind speed and highest sustained winds (meaning wind that blows for more than a few moments), that would be the months between late February through early March (16.8 knots). Again, it is felt as a moderate breeze.
Tip: Any wind speed below 10 knots is perceived as a gentle breeze, while over 11, it is felt more intensely (like a moderate breeze).
Average Wind Speeds
|
Month |
Avg. Wind (knots) |
Sustained High Wind |
|
January |
12.4 |
15.2 |
|
February |
13 |
16 |
|
March |
12.1 |
15 |
|
April |
11.2 |
13.7 |
|
May |
11 |
13.8 |
|
June |
11.9 |
14.8 |
|
July |
11.3 |
14.3 |
|
August |
9.2 |
12.2 |
|
September |
7.5 |
9.9 |
|
October |
10.5 |
13.3 |
|
November |
9.9 |
13.3 |
|
December |
11.2 |
14.1 |
Sea Temperature
The sea is inviting and warm enough to enjoy water sports and swimming year-round. The sea temperature ranges from 27oC (81oF) to 29oC (84oF) between January and March and September and October, respectively.
Sea temperature (Kingstown)
|
Month |
Celsius (°C) |
Fahrenheit (°F) |
|
January |
27 |
81 |
|
February |
27 |
80 |
|
March |
27 |
80 |
|
April |
27 |
81 |
|
May |
28 |
82 |
|
June |
28 |
82 |
|
July |
28 |
83 |
|
August |
29 |
84 |
|
September |
29 |
84 |
|
October |
29 |
84 |
|
November |
28 |
83 |
|
December |
28 |
82 |
Hurricane Season
The hurricane season is from June to November for the entire Caribbean region. Now, depending on where each island is situated, it might be more likely to be affected by a tropical storm than another. The location also plays a role in the damage caused by a hurricane, should one hit a Caribbean island. In Saint Vincent and The Grenadines, the most likely period for a cyclone to strike the islands is between August and October. Nevertheless, there are fewer chances of a hurricane affecting the region compared to the other Caribbean islands, as it is tucked in the southernmost part of the hurricane belt.
General Overview
The climate in St. Vincent & The Grenadines is tropical, a familiar fact across all Caribbean islands, and humid and hot from January through December. The weather is also distinguished by two primary seasons, a humid, hot, and, at the same time, rainy season spanning from the middle of the year through the end of it (from June to December) and a dry yet fairly cool, season from the start of the year until mid-April.
As is typical across most Caribbean regions, trade winds also affect each nation's weather and climate. In St. Vincent & The Grenadines’ case, the intensity of the northeast trade winds is quite modest while they blow steadily and constantly during the rainy season but become more irregular and may even experience some short breaks during the dry season. This, in turn, makes the atmosphere feel a little muggy.
There is also an in-between period, from mid-April to late May, when the frequency of thunderstorms increases and the temperature rises, giving a taste of the upcoming rainy and hot season.
Temperature
Temperature-wise, there are a few noticeable differences and variations in St. Vincent and The Grenadines. As seen in the table below, the mean temperature ranges between 27.8oC (82oF) in January, February, and March and 29.9oC (85.9oF) in September. In any case, the temperatures are great for outdoor activities and water sports. However, kindly note that the evenings could feel colder in the winter months, but then again, nothing that can spoil your mood or vacations.
Average Temperatures (in degrees Celsius)
|
Month |
High (°C) |
Mean (°C) |
Low (°C) |
|
January |
29.1 |
27.8 |
26.1 |
|
February |
28.9 |
27.8 |
25.8 |
|
March |
29.1 |
27.8 |
25.9 |
|
April |
29.7 |
28.5 |
26.6 |
|
May |
30.5 |
29.2 |
27.3 |
|
June |
30.3 |
29.1 |
27.2 |
|
July |
30.3 |
29 |
27.2 |
|
August |
30.7 |
29.3 |
27.6 |
|
September |
31.2 |
29.9 |
27.9 |
|
October |
30.8 |
29.4 |
27.3 |
|
November |
30.3 |
28.9 |
27 |
|
December |
29.7 |
28.3 |
26.6 |
Average Temperatures (in degrees Fahrenheit)
|
Month |
High (°F) |
Mean (°F) |
Low (°F) |
|
January |
84.3 |
82 |
78.9 |
|
February |
84.1 |
82 |
78.5 |
|
March |
84.3 |
82 |
78.7 |
|
April |
85.5 |
83.3 |
79.9 |
|
May |
86.9 |
84.5 |
81.1 |
|
June |
86.6 |
84.3 |
80.9 |
|
July |
86.6 |
84.2 |
81 |
|
August |
87.2 |
84.8 |
81.7 |
|
September |
88.1 |
85.9 |
82.3 |
|
October |
87.4 |
85 |
81.2 |
|
November |
86.5 |
84 |
80.6 |
|
December |
85.4 |
82.9 |
79.8 |
Feels-Like Temperatures
The weather is experienced in various ways than just what the digital or mercury thermometer shows. It is also affected by humidity and winds. This is why we often feel much higher temperatures (than they are) when the humidity levels are higher. Likewise, lower temperatures make us feel much colder if there are high winds. These are the perceived temperatures.
Regarding humidity, the levels in St. Vincent and The Grenadines are above average throughout the year, with November being the most humid month (69% relative humidity) and February being the least humid month (60% relative humidity).
Average Relative Humidity by Month
|
Month |
Average Relative Humidity |
|
January |
61.6% |
|
February |
60.1% |
|
March |
61.9% |
|
April |
67.7% |
|
May |
68.1% |
|
June |
67.3% |
|
July |
69.2% |
|
August |
68% |
|
September |
68.3% |
|
October |
68.5% |
|
November |
69.3% |
|
December |
64% |
Rainfall
The months with the lowest chance of rain are March, April, and May, with the first being the least likely to experience any severe downpours of the three. Kindly note that this refers to significant precipitation, which means rains that bring at least 25.5 millimeters (1 inch) of water. The months with the most rain days are July, June, and October, with an average of around 15, 13, and 12 rainy days, respectively. Finally, the period with the least precipitation is between March and May, with less than ten days of rain each month.
|
Month |
Daily Chance of Rain |
Total Precipitation (cm) |
Total Precipitation (in) |
Average Rainy Days |
|
January |
9% |
3 |
1.2 |
11.7 |
|
February |
8% |
2.3 |
0.9 |
10.1 |
|
March |
7% |
2.3 |
0.9 |
7.9 |
|
April |
6% |
2.8 |
1.1 |
9.2 |
|
May |
6% |
2.3 |
0.9 |
9.9 |
|
June |
8% |
3.6 |
1.4 |
12.9 |
|
July |
10% |
4.1 |
1.6 |
15.1 |
|
August |
10% |
4.8 |
1.9 |
11.7 |
|
September |
8% |
4.6 |
1.8 |
11.1 |
|
October |
10% |
4.8 |
1.9 |
12.2 |
|
November |
17% |
7.9 |
3.1 |
13 |
|
December |
12% |
4.8 |
1.9 |
12.4 |
Wind
The wind usually has a moderate intensity in St. Vincent and The Grenadines. The windiest months are January, February, and March, with the second being the windiest, with an average speed of nearly 13 knots (24.1 KPH or 14.9 MPH). In plainer terms, a wind with that speed is perceived as a moderate breeze. As for the period with the highest wind speed and highest sustained winds (meaning wind that blows for more than a few moments), that would be the months between late February through early March (16.8 knots). Again, it is felt as a moderate breeze.
Tip: Any wind speed below 10 knots is perceived as a gentle breeze, while over 11, it is felt more intensely (like a moderate breeze).
Average Wind Speeds
|
Month |
Avg. Wind (knots) |
Sustained High Wind |
|
January |
12.4 |
15.2 |
|
February |
13 |
16 |
|
March |
12.1 |
15 |
|
April |
11.2 |
13.7 |
|
May |
11 |
13.8 |
|
June |
11.9 |
14.8 |
|
July |
11.3 |
14.3 |
|
August |
9.2 |
12.2 |
|
September |
7.5 |
9.9 |
|
October |
10.5 |
13.3 |
|
November |
9.9 |
13.3 |
|
December |
11.2 |
14.1 |
Sea Temperature
The sea is inviting and warm enough to enjoy water sports and swimming year-round. The sea temperature ranges from 27oC (81oF) to 29oC (84oF) between January and March and September and October, respectively.
Sea temperature (Kingstown)
|
Month |
Celsius (°C) |
Fahrenheit (°F) |
|
January |
27 |
81 |
|
February |
27 |
80 |
|
March |
27 |
80 |
|
April |
27 |
81 |
|
May |
28 |
82 |
|
June |
28 |
82 |
|
July |
28 |
83 |
|
August |
29 |
84 |
|
September |
29 |
84 |
|
October |
29 |
84 |
|
November |
28 |
83 |
|
December |
28 |
82 |
Hurricane Season
The hurricane season is from June to November for the entire Caribbean region. Now, depending on where each island is situated, it might be more likely to be affected by a tropical storm than another. The location also plays a role in the damage caused by a hurricane, should one hit a Caribbean island. In Saint Vincent and The Grenadines, the most likely period for a cyclone to strike the islands is between August and October. Nevertheless, there are fewer chances of a hurricane affecting the region compared to the other Caribbean islands, as it is tucked in the southernmost part of the hurricane belt.