Georgetown weather in August

In August, Georgetown sees average daytime highs of 29°C and overnight lows near 25°C, with 161 mm of rain across 25.5 wet days and about 12.2 hours of daylight. It is the 3rd-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 33% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of August to 12 h 06 min by month's end. Set against the rest of the year, August is Georgetown's 2nd-clearest and 11th-windiest month. For the whole year in context, see Georgetown's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
25°
9th coldest
Rainfall
161 mm
25.5 wet days
Daylight
12 h 12 min
5:50 AM – 6:03 PM
Cloud cover
55%
2nd clearest
Wind
10 km/h
11th windiest
Solar energy
5.34 kWh/m²
Travel score
3.7
out of 10

Georgetown is capital city of Guyana.

Density
1,592/km²
people per km²
Founded
1781

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 Georgetown reaches about 29°C in the afternoon and slips back to 25°C overnight — a 4°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 about 1°C warmer than July and on par with September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
303025
313025

How August really feels in Georgetown

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.

Georgetown weather by month

How August compares with the rest of the year at a glance. August is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 24°16023.511.64.6
Feb27° / 24°10518.311.85.0
Mar28° / 24°9418.6125.1
Apr28° / 25°13020.112.14.4
May28° / 25°25326.512.33.7
Jun28° / 24°31529.112.43.4
Jul28° / 24°24129.412.43.3
Aug29° / 25°16125.512.23.7
Sep30° / 25°9618.2124.3
Oct30° / 26°10819.311.84.2
Nov29° / 25°17923.811.73.8
Dec28° / 24°20727.111.63.9

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 26% of August, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24951
35050
45149
55248
65347
75446
85545
95545
105743
115743
125743
135842
145941
155941
165941
176040
186040
196040
206238
216238
226337
236436
246535
256535
266634
276634
286832
296931
306931
316931

Chance of precipitation in August

Any precipitation

Georgetown gets around 161 mm of rain over 25.5 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 82% and peaks near 90% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
190
290
390
490
589
689
789
889
988
1088
1188
1287
1387
1487
1586
1686
1785
1885
1984
2082
2181
2279
2377
2476
2574
2672
2771
2869
2968
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 65% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
17723
27525
37426
47327
57228
67129
77030
86931
96931
106832
116832
126733
136733
146634
156634
166535
176535
186436
196436
206337
216238
226139
236139
246040
255941
265842
275743
285644
295545
305446
315347

Wind in August

Winds average 10 km/h in August.

Across August, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 18 min at the start of August to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over August. Sunrise moves from 5:50 AM to 5:49 AM, and sunset from 6:08 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:506:08
212.35:506:07
312.35:506:07
412.35:506:07
512.35:506:07
612.35:506:07
712.35:506:06
812.35:506:06
912.35:506:06
1012.35:506:05
1112.35:506:05
1212.25:506:05
1312.25:506:05
1412.25:506:04
1512.25:506:04
1612.25:506:03
1712.25:506:03
1812.25:506:03
1912.25:506:02
2012.25:506:02
2112.25:506:01
2212.25:506:01
2312.25:496:01
2412.25:496:00
2512.25:496:00
2612.25:495:59
2712.25:495:59
2812.25:495:58
2912.15:495:58
3012.15:495:57
3112.15:495:57

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.34 kWh/m².

For context, solar energy here swings from a low near 4.25 kWh/m² to a high of 5.78 kWh/m² in September across the year — August's 5.34 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.6Bright
275.6Bright
285.6Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in August

Is August a good time to visit Georgetown?

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

3.7
Sightseeing
9th-best month of the year
4.7
Beach & pool
6th-best month of the year

August is a weaker month for outdoor sightseeing in Georgetown.

What to pack for Georgetown in August

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

In August, Georgetown sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

Sea temperature near Georgetown 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 offshore 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
Apr28Warm
May28Warm
Jun28Warm
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Georgetown in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Georgetown peaks around March 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 21UV 14Dec 12UV 10
UV index (midday)Level
Jan12Extreme
Feb13Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov11Extreme
Dec10Extreme

Air quality in Georgetown 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 Georgetown is worst in April — around 26 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (August, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1526 µg/m³Aug 2112 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb21Moderate
Mar23Moderate
Apr26Moderate
May23Moderate
Jun19Moderate
Jul15Moderate
Aug12Good
Sep13Moderate
Oct15Moderate
Nov14Moderate
Dec17Moderate
Location & terrain

Where is Georgetown?

Georgetown sits at 6.8°N, 58.2°W, 3 m above sea level, in Guyana. The nearest listed city is Parika, 30 km away.

BarticaLindenNew AmsterdamMabaruma

Topography around Georgetown

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

Within 3 km, the terrain around Georgetown has only modest variations in elevation — a maximum elevation change of 17 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 25 m; within 80 km, significant variations in elevation — a maximum elevation change of 287 m.

The land around Georgetown is covered by artificial surfaces (43%) and water (24%) within 3 km, water (42%) within 16 km, and trees (44%) and water (36%) within 80 km.

3 km
17 m
16 km
25 m
80 km
287 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
August weather nearby: Parika 30 km · Bartica 68 km · Linden 90 km · New Amsterdam 94 km · Mabaruma 237 km · Weg naar Zee 341 km · Welgelegen 342 km · Tammenga 344 km

Guyana travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B / D / G
240 V · 60 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$32,414
2025
Happiness
6.0 / 10
World Happiness, 2011
Safe drinking water
67%
of population, 2024
Homicide rate
19.1
per 100k, 2023
Road deaths
22.3
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 35%Hindu 25%other Christian 21%Roman Catholic 7%

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 Georgetown (6.8045°, -58.1553°, 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. 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).