George Town weather in August

In August, George Town sees average daytime highs of 29°C and overnight lows near 27°C, with 89 mm of rain across 15.2 wet days and about 12.7 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 43% of the time in August, and the air most often feels miserable.

Daylight stretches from about 12 h 54 min at the start of August to 12 h 24 min by month's end. Set against the rest of the year, August is George Town's 9th-clearest and 11th-windiest month. For the whole year in context, see George Town's year-round climate.

Daytime high
29°
1st warmest
Overnight low
27°
12th coldest
Rainfall
89 mm
15.2 wet days
Daylight
12 h 42 min
6:10 AM – 6:49 PM
Cloud cover
52%
9th clearest
Wind
19 km/h
11th windiest
Solar energy
6.47 kWh/m²
Travel score
5.0
out of 10

George Town is capital and largest city of the Cayman Islands.

Density
1,013/km²
people per km²

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 29°C through the month.

A typical August day in George Town reaches about 29°C in the afternoon and slips back to 27°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°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)
12927
22927
32927
42927
52927
62927
72927
82927
92927
102927
112927
122927
132927
142927
152927
162927
172927
182927
192927
202927
212927
222927
232927
242927
252927
262927
272927
282927
292927
302927
312927

How August really feels in George Town

Once humidity and wind are folded in, August averages 31 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
31
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.

George Town weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 25°317.1117.6
Feb26° / 25°153.811.38.2
Mar26° / 25°194.511.98.2
Apr27° / 26°184.412.47.9
May28° / 26°9711.912.96.4
Jun28° / 27°10213.713.15.3
Jul29° / 27°6112.1135.4
Aug29° / 27°8915.212.75.0
Sep29° / 27°1411912.14.4
Oct28° / 27°21420.111.64.7
Nov27° / 26°1201311.16.2
Dec27° / 25°479.210.97.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% 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 40%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26337
36337
46337
56337
66238
76337
86238
96238
106337
116238
126238
136238
146238
156238
166238
176139
186139
196040
206040
215941
225842
235743
245743
255644
265545
275545
285644
295545
305545
315446

Chance of precipitation in August

Any precipitation

George Town gets around 89 mm of rain over 15.2 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 48% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
140
240
341
441
541
642
742
842
943
1043
1144
1244
1345
1445
1546
1647
1748
1849
1950
2050
2152
2253
2354
2454
2555
2655
2756
2856
2956
3056
3156

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the miserable band about 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11090
21090
31090
41090
51090
61090
71090
81090
9991
10991
11991
12892
13892
14793
15793
16694
17694
18694
19694
20694
21694
22694
23694
24694
25694
26694
27694
28793
29793
30793
31892

Wind in August

Winds average 19 km/h in August.

Across August, daily wind ranges from about 18 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 54 min at the start of August to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over August. Sunrise moves from 6:05 AM to 6:13 AM, and sunset from 6:58 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:056:58
212.96:056:58
312.96:066:57
412.86:066:57
512.86:066:56
612.86:076:56
712.86:076:55
812.86:076:54
912.86:086:54
1012.86:086:53
1112.76:086:53
1212.76:096:52
1312.76:096:51
1412.76:096:51
1512.76:106:50
1612.76:106:49
1712.66:106:49
1812.66:106:48
1912.66:116:47
2012.66:116:47
2112.66:116:46
2212.66:116:45
2312.56:126:44
2412.56:126:43
2512.56:126:43
2612.56:126:42
2712.56:136:41
2812.56:136:40
2912.46:136:39
3012.46:136:38
3112.46:136:38

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.47 kWh/m².

For context, solar energy here swings from a low near 4.24 kWh/m² to a high of 6.77 kWh/m² in July across the year — August's 6.47 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.7Intense
76.6Intense
86.6Intense
96.6Intense
106.6Intense
116.6Intense
126.6Intense
136.6Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.2Intense
Planning a trip in August

Hazard calendar for George Town

In seasonPeak

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

George Town sits in the Atlantic hurricane belt; the season peaks August–October.

George Town's rainy season runs September–November, when most of the year's rain falls.

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

Is August a good time to visit George Town?

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

5.0
Sightseeing
10th-best month of the year
6.4
Beach & pool
8th-best month of the year

August is a reasonable time to visit George Town for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for George Town in August

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

In August, George Town sees daytime highs around 29°C and nights near 27°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

light clothesrain gearsun protection

Sea temperature near George Town in August

The nearest coast averages about 30°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 30°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°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr27Warm
May28Tropical
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in George Town 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 George Town peaks around May 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMay 13UV 12Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in George Town 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 George Town is worst in June — around 27 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (January, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2126 µg/m³Jan 106 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar8Good
Apr10Good
May14Moderate
Jun27Moderate
Jul24Moderate
Aug19Moderate
Sep13Moderate
Oct10Good
Nov7Good
Dec7Good
Location & terrain

Where is George Town?

George Town sits at 19.3°N, 81.4°W, 3 m above sea level, in Cayman Islands. The nearest listed city is West Bay, 11 km away.

West Bay

Topography around George Town

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

Within 3 km, the terrain around George Town has only modest variations in elevation — a maximum elevation change of 21 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 21 m; within 80 km, only modest variations in elevation — a maximum elevation change of 24 m.

The land around George Town is covered by water (46%) and artificial surfaces (29%) within 3 km, water (87%) within 16 km, and water (97%) within 80 km.

3 km
21 m
16 km
21 m
80 km
24 m
treesgrasslandartificial surfacesbare terrainwatermangroves
August weather nearby: West Bay 11 km · Trinidad 315 km · Nueva Gerona 325 km · Condado 329 km · Cienfuegos 332 km · Negril 338 km · Cumanayagua 341 km · Abreus 343 km

Cayman Islands travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 113% of US
price level, 2024
GDP per capita
$104,293
2024
Homicide rate
4.4
per 100k, 2020
Income group
High
World Bank
Religion
Protestant 61%none 17%Roman Catholic 14%other 5%

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 George Town (19.2866°, -81.3744°, elevation 3 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).