Saint George's weather in August

In August, Saint George's sees average daytime highs of 28°C and overnight lows near 26°C, with 156 mm of rain across 23.8 wet days and about 12.4 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 41% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of August to 12 h 12 min by month's end. Set against the rest of the year, August is Saint George's's 5th-clearest and 11th-windiest month. For the whole year in context, see Saint George's's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
26°
10th coldest
Rainfall
156 mm
23.8 wet days
Daylight
12 h 24 min
5:59 AM – 6:23 PM
Cloud cover
54%
5th clearest
Wind
22 km/h
11th windiest
Solar energy
5.91 kWh/m²
Travel score
4.5
out of 10

Saint George's is capital of Grenada.

Founded
1650

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical August day in Saint George's reaches about 28°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 28°C. Set against its neighbours, August runs on par with July and on par with September.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302826
312826

How August really feels in Saint George's

Once humidity and wind are folded in, August averages 7 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
7
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Saint George's weather by month

How August compares with the rest of the year at a glance. August is the 3rd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 25°4812.111.46.8
Feb26° / 25°227.611.67.3
Mar26° / 25°266.311.97.5
Apr27° / 26°317.412.37.0
May27° / 26°5511.912.56.2
Jun27° / 26°11719.312.75.0
Jul27° / 26°14223.212.64.7
Aug28° / 26°15623.812.44.5
Sep28° / 26°14320.212.14.4
Oct28° / 26°1602311.74.4
Nov28° / 26°1612211.44.7
Dec27° / 26°7615.211.36.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 17% of August, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26040
36040
45941
56040
65941
75941
85842
95842
105842
115842
125842
135842
145842
155743
165743
175743
185842
195743
205743
215743
225743
235842
245842
255842
265842
275842
285842
295842
305842
315842

Chance of precipitation in August

Any precipitation

Saint George's gets around 156 mm of rain over 23.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 76% and peaks near 81% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
180
280
380
481
581
681
780
880
980
1080
1180
1279
1379
1478
1578
1677
1777
1876
1975
2075
2174
2274
2373
2472
2571
2670
2769
2868
2967
3067
3166

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the oppressive band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
16733
26733
36634
46634
56535
66436
76436
86337
96238
106238
116139
126040
135941
145941
155842
165743
175644
185545
195545
205446
215347
225248
235149
245050
255050
264951
274951
284852
294852
304753
314654

Wind in August

Winds average 22 km/h in August.

Across August, daily wind ranges from about 21 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
123breezy
223breezy
323breezy
423breezy
522breezy
622breezy
722breezy
822breezy
922breezy
1022breezy
1122breezy
1222breezy
1322breezy
1422breezy
1522breezy
1622breezy
1722breezy
1822breezy
1922breezy
2022breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 30 min at the start of August to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over August. Sunrise moves from 5:57 AM to 6:00 AM, and sunset from 6:29 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:576:29
212.55:576:29
312.55:576:29
412.55:576:28
512.55:586:28
612.55:586:28
712.55:586:27
812.55:586:27
912.55:586:26
1012.55:586:26
1112.55:586:26
1212.45:596:25
1312.45:596:25
1412.45:596:24
1512.45:596:24
1612.45:596:23
1712.45:596:23
1812.45:596:22
1912.45:596:22
2012.45:596:21
2112.45:596:21
2212.35:596:20
2312.35:596:19
2412.36:006:19
2512.36:006:18
2612.36:006:18
2712.36:006:17
2812.36:006:16
2912.36:006:16
3012.36:006:15
3112.26:006:14

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.91 kWh/m².

For context, solar energy here swings from a low near 4.97 kWh/m² to a high of 6.57 kWh/m² in April across the year — August's 5.91 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
236.0Bright
246.0Bright
256.0Bright
266.0Bright
276.0Intense
286.0Intense
296.0Intense
306.0Intense
316.0Intense
Planning a trip in August

Hazard calendar for Saint George's

In seasonPeak

In August, Saint George's sits inside its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.

Saint George's sits in the Atlantic hurricane belt; the season peaks August–October.

Saint George's's rainy season runs June–December, when most of the year's rain falls.

Saint George's sees seasonal dust haze (June), heaviest in June.

Atlantic hurricane
Rainy season
Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Saint George's?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.5
Sightseeing
10th-best month of the year
4.9
Beach & pool
11th-best month of the year

August is a reasonable time to visit Saint George's for sightseeing.

What to pack for Saint George's in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Saint George's sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection and a windbreaker. About 24 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Saint George's in August

The nearest coast averages about 29°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 km away) is warmest in September at about 29°C and coldest in February near 27°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr27Warm
May28Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Saint George's in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Saint George's peaks around March 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 22UV 14Dec 14UV 9
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Saint George's in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Saint George's is worst in June — around 32 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (January, 13 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1731 µg/m³Jan 913 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb16Moderate
Mar16Moderate
Apr19Moderate
May23Moderate
Jun32Moderate
Jul26Moderate
Aug19Moderate
Sep14Moderate
Oct17Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Saint George's?

Saint George's sits at 12.1°N, 61.8°W, 6 m above sea level, in Grenada. The nearest listed city is Calliaqua, 134 km away.

Topography around Saint George's

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint George's.

Within 3 km, the terrain around Saint George's has significant variations in elevation — a maximum elevation change of 327 m around an average of 55 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 827 m; within 80 km, large variations in elevation — a maximum elevation change of 799 m.

The land around Saint George's is covered by water (46%) and trees (43%) within 3 km, water (71%) and trees (27%) within 16 km, and water (96%) within 80 km.

3 km
327 m
16 km
827 m
80 km
799 m
treesgrasslandartificial surfaceswater
August weather nearby: Calliaqua 134 km · Kingstown 135 km · Scarborough 147 km · Diego Martin 150 km · Port of Spain 156 km · Laventille 159 km · Tunapuna 161 km · Paradise 161 km

Grenada travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type G
230 V · 50 Hz
Prices
≈ 57% of US
price level, 2025
GDP per capita
$12,107
2025
Safe drinking water
90%
of population, 2017
Homicide rate
13.7
per 100k, 2023
Road deaths
8
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Protestant 49%Roman Catholic 36%none 6%other 6%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Saint George's (12.0529°, -61.7523°, elevation 6 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).