Yearly & Monthly weather - Saint George's, Grenada

A large ship on the clear calm waters of the Saint George's harbor in Grenada

The climate of Saint George's

Saint George's, Grenada, prevailing climate resonates with the classification given by the Köppen climate classification, which is Aw - Tropical wet and dry or savanna. Possessing a tropical climate, Saint George's experiences high levels of humidity, potent sunshine and frequent, heavy rainfall especially during the wet season. Predominantly, the hottest month is May with an average temperature peaking at 30°C (86°F), while the coolest month is January, with an average of 23.8°C (74.8°F).

Detailed scrutiny of the data reveals a continuous fluctuation between the temperatures throughout the year. The average high temperatures fall between 28.3°C (82.9°F) and 30°C (86°F), whereas the lowest temperatures oscillate from 23.8°C (74.8°F) to 26.6°C (79.9°F). Rainfall in Saint George's varies extensively through the year, with the heaviest precipitation observed in August, amounting to 293mm (11.54"). In stark contrast, the lowest rainfall averages 16mm (0.63") in April. Furthermore, the number of rainfall days tends to surge from July to February, culminating in approximately 20 days in July and November.

While the sea temperatures moderately fluctuate between 27.2°C (81°F) and 29.6°C (85.3°F), the amount of sunshine hours remains relatively consistent throughout the year, tallying between 7 to 8 hours. Saint George's experiences between 11.4 to 12.8 daylight hours, whereas the UV index touches a high of 12 on average from February to July dropping to 9 by December.

The best time to visit Saint George's

Optimum conditions for visiting Saint George's begin to surface from February to April. This period signifies less rainfall, with averages varying from 16mm (0.63") to 45mm (1.77") and the number of rainfall days ranging from 7 to 10 days. Moreover, temperatures during this period remain pleasant, with the highest temperatures fluctuating from 28.8°C (83.8°F) to 30°C (86°F) and the lowest from 23.8°C (74.8°F) to 25.5°C (77.9°F). Approximately 8 hours of sunshine, 11.8 to 12.4 daylight hours, along with moderate UV index from 10 to 12 contribute to a congenial atmosphere for outdoor exploration.

The worst time to visit Saint George's

Diminishing weather conditions from June to October deem these months as less favorable for visiting Saint George's. The city encounters peak rainfall levels during these months, with averages escalating to 144mm (5.67") to 293mm (11.54") and an increase in the number of rainfall days to 17 to 20 days. Although high and low temperature averages from 29.4°C (84.9°F) to 30°C (86°F) and 25.5°C (77.9°F) to 26.6°C (79.9°F) respectively seem enticing, 7 hours of sunshine coupled with a high UV index of 12 can result in intense weather conditions.

Spring weather in Saint George's

Spring arrives in Saint George's from March to May, paving the way for a gentle transition into the warmer months. This interim sees a steady climb in temperatures, with highs ranging from 29.4°C (84.9°F) to 30°C (86°F) and lows from 24.4°C (75.9°F) to 26.6°C (79.9°F). Rainfall levels remain moderate, fluctuating between 16mm (0.63") and 55mm (2.17") over 7 to 13 days. With about 8 hours per day of bright sunshine, spring makes for a delightful time in Saint George’s.

Summer weather in Saint George's

Positioned in the tropics, Saint George's summer, from June to August, is characterized by robust sunshine and high temperatures oscillating from 29.4°C (84.9°F) to 30°C (86°F). Likewise, the minimum temperature varies between 25.5°C (77.9°F) to 26.6°C (79.9°F). The locals perceive significant changes in the weather with the onset of the wet season in this period. Rainfall surges dramatically from 144mm (5.67") to 293mm (11.54") over 17 to 20 days. Despite an average of 7 hours of daily sunshine, the elevated UV index of 12 signals caution for outdoor activities during mid-day.

Autumn weather in Saint George's

Autumn, from September to November, experiences a continuation of the wet season. Rainfall remains substantial through these months with totals varying from 87mm (3.43") to 273mm (10.75") over approximately 17 to 20 days. High temperatures persist in the range of 29.4°C (84.9°F) to 30°C (86°F), whilst lows are steady at 25.5°C (77.9°F). A consistent pattern of 7 hours of daily sunshine is offset by a high UV index, making protective measures necessary for outdoor expeditions.

Winter weather in Saint George's

Winter in Saint George’s, spanning from December to February, ushers in cooler and drier conditions. High temperatures remain fairly constant from 28.3°C (82.9°F) to 28.8°C (83.8°F), and the low temperatures moderate between 23.8°C (74.8°F) to 24.4°C (75.9°F). Rainfall shifts into a lower gear with averages from 45mm (1.77") to 55mm (2.17") spanning 9 to 18 days. The delightful presence of 8 hours of sunshine pairs well with an average UV index receding from 12 to 9, increasing the allure for exploring Saint George's outdoors during winter months.

Weather in January

Saint George's enters the new year with a stable, tropical climate prevalent across the months. Yet, January sees a subtle increase in daylight hours, and sea temperatures remain warm and inviting. The beginning of the year offers 11.5 hours of daylight, allowing ample time for outdoor activities. Weather in January »

Weather in February

In contrast to January, Saint George's enjoys a slight decrease in rain in February, accompanied by higher UV Index readings. Although it's the shortest month of the year, an increase in daylight hours is noticeable, bringing more time to enjoy the sun-soaked beaches and waterfront attractions. Weather in February »

Weather in March

Transitioning from February to March, Saint George's benefits from incremental improvements across climatic parameters. Visitors will notice a distinct drop in rainfall, and the increase in daylight hours continues apace. March represents spring’s arrival with exceptional weather conditions. Weather in March »

Weather in April

Experiencing Saint George's in April is a delight as the harmonious combination of temperature, daylight, and sunshine hours continues. The month registers the lowest rainfall between February to December, with a mere 16mm (0.63"). Weather in April »

Weather in May

May's weather patterns around Saint George's show an uptick in rainfall, marking the transition towards the wet season. Regular sunshine and longer daylight hours maintain inviting conditions, and the sea remains pleasantly warm for water-related activities. Weather in May »

Weather in June

Weather in Saint George's in June witnesses the onset of the wet season with a significant jump in rainfall. However, the temperature remains uniform, and the days are the longest. Despite the rainy days, a decent amount of sunshine ensures outdoor activities remain enjoyable. Weather in June »

Weather in July

July continues with June's high rainfall trend, further defining the peak rainy season in Saint George's. Although rain may be a frequent occurrence, consistent temperatures and adequate sunlight ensure decent climate conditions. Sea temperatures reach the warmest of the year, and daylight hours remain relatively stable. Weather in July »

Weather in August

Saint George's weather in August generally remains consistent with that of the previous months of the rainy season. Temperatures are consistent throughout the day, and sea temperatures typically peak during this month. The warmth radiates beautifully off the island, with vibrant local flora flourishing to their potential. Weather in August »

Weather in September

September replicates previous months' pattern, known for high rainfall and warm weather in Saint George's. While daytime temperatures remain high, evenings offer a refreshing break from the heat. The island maintains its lush green appearance thanks to the continued precipitation. Weather in September »

Weather in October

Saint George’s in October begins to witness a decline in rainfall compared to the previous months, signaling the receding rainy season. Warmer sea temperatures persist, adding to the overall tropical ambiance. The amount of sunshine hours also steadily recover, catering for more outdoor exploration opportunities. Weather in October »

Weather in November

With the onset of November, Saint George's sees a marked decrease in rainfall, signifying the wet season's end. Conditions improve visibly with less frequent rain occurrences, and daylight hours reduce somewhat. November offers an enjoyable weather balance as the conditions turn dryer with the notable 87mm (3.43") of rainfall. Weather in November »

Weather in December

Saint George's in December can be described as a tropical winter paradise. Conditions mellow down with temperature, rainfall, and sunlight hours decreasing to their lowest comparative standards of the year. Notably, the sea remains pleasantly warm, inviting for water sports enthusiasts. Weather in December »

Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Saint George's?

The coldest temperatures in Saint George's occur during January, when averages reach a peak of 28.3°C (82.9°F) and a low of 23.8°C (74.8°F).

How many days does it rain in Saint George's?

Throughout the year, in Saint George's, Grenada, there are 180 rainfall days, and 1451mm (57.13") of precipitation is accumulated.

What are the months with the most sunshine in Saint George's?

The months with the most sunshine in Saint George's are January through May and August, with an average of 8h of sunshine.

What are the months with the highest UV index in Saint George's?

The months with the highest UV index in Saint George's, Grenada, are February through September, with an average maximum UV index of 12.

What is the month with the coldest sea water in Saint George's?

March is the month with the coldest seawater in Saint George's, Grenada, with an average sea temperature of 27.2°C (81°F).

What are the warmest months in Saint George's?

Saint George's experiences peak temperatures, averaging a high-temperature of 30°C (86°F) during April, May and September.

What is the driest month in Saint George's?

The month with the least rainfall is April, when the rain falls for 7 days and typically collects 16mm (0.63") of precipitation.

When are the longest days in Saint George's?

June has the longest days of the year, with an average of 12h and 48min of daylight.

What is the month with the least sunshine in Saint George's?

June, July, September through December, with an average of 7h of sunshine, are months with the least sunshine in Saint George's.

What is the wettest month in Saint George's?

The month with the most rainfall in Saint George's, Grenada, is August, when the rain falls for 18 days and typically aggregates up to 293mm (11.54") of precipitation.

What is the month with the warmest sea water in Saint George's?

With an average sea temperature of 29.6°C (85.3°F), September is the month with the warmest seawater in Saint George's.

What is the month with the shortest days in Saint George's?

December has the shortest days of the year in Saint George's, with an average of 11h and 24min of daylight.

Is there Daylight Saving Time (DST) in Saint George's?

Saint George's does not utilize Daylight Saving Time (DST). AST timezone is used throughout the entire year.

What is the month with the lowest UV index in Saint George's?

December is the month with the lowest UV index, with an average maximum UV index of 9.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N D

Average temperature
Saint George's, Grenada

Average high temperature in January:
28.3°C
Average high temperature in February:
28.8°C
Average high temperature in March:
29.4°C
Average high temperature in April:
30°C
Average high temperature in May:
30°C
Average high temperature in June:
29.4°C

Average high temperature in July:
28.8°C
Average high temperature in August:
29.4°C
Average high temperature in September:
30°C
Average high temperature in October:
29.4°C
Average high temperature in November:
28.8°C
Average high temperature in December:
28.8°C

The warmest months (with the highest average high temperature) are April, May and September (30°C).
The month with the lowest average high temperature is January (28.3°C).

Average low temperature in January:
23.8°C
Average low temperature in February:
23.8°C
Average low temperature in March:
24.4°C
Average low temperature in April:
25.5°C
Average low temperature in May:
26.6°C
Average low temperature in June:
25.5°C

Average low temperature in July:
25.5°C
Average low temperature in August:
25.5°C
Average low temperature in September:
25.5°C
Average low temperature in October:
25.5°C
Average low temperature in November:
25°C
Average low temperature in December:
24.4°C

The month with the highest average low temperature is May (26.6°C).
The coldest months (with the lowest average low temperature) are January and February (23.8°C).

Average rainfall
Saint George's, Grenada

The wettest month (with the highest rainfall) is August (293.1mm).
The driest month (with the least rainfall) is April (16.3mm).

Average rainfall days
Saint George's, Grenada

Average rainfall days in January:
14 days
Average rainfall days in February:
9 days
Average rainfall days in March:
10 days
Average rainfall days in April:
7 days
Average rainfall days in May:
13 days
Average rainfall days in June:
17 days

Average rainfall days in July:
20 days
Average rainfall days in August:
18 days
Average rainfall days in September:
17 days
Average rainfall days in October:
17 days
Average rainfall days in November:
20 days
Average rainfall days in December:
18 days

The months with the highest number of rainy days are July and November (20 days).
The month with the least rainy days is April (7 days).

Average sea temperature
Saint George's, Grenada

Average sea temperature in January:
27.4°C
Average sea temperature in February:
27.3°C
Average sea temperature in March:
27.2°C
Average sea temperature in April:
27.7°C
Average sea temperature in May:
28.1°C
Average sea temperature in June:
28.2°C

Average sea temperature in July:
28.3°C
Average sea temperature in August:
29.2°C
Average sea temperature in September:
29.6°C
Average sea temperature in October:
29.1°C
Average sea temperature in November:
28.4°C
Average sea temperature in December:
27.9°C

The best month for swimming (with the highest average sea temperature) is September (29.6°C).
The coldest month (with the lowest average sea temperature) is March (27.2°C).

Average daylight / Average sunshine
Saint George's, Grenada

Average daylight in January:
11h and 3min
Average daylight in February:
11h and 5min
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 3min
Average daylight in September:
12h and 1min
Average daylight in October:
11h and 5min
Average daylight in November:
11h and 4min
Average daylight in December:
11h and 2min

The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).

The months with the most sunshine are January, February, March, April, May and August (Average sunshine: 8h).
The months with the least sunshine are June, July, September, October, November and December (Average sunshine: 7h).

Average UV index
Saint George's, Grenada

The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).

Climate and monthly weather forecastSaint George's, Grenada

Contents