Guamal weather in August

In August, Guamal sees average daytime highs of 32°C and overnight lows near 25°C, with 277 mm of rain across 26 wet days and about 12.3 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 1% of the time in August, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of August to 12 h 12 min by month's end. Set against the rest of the year, August is Guamal's 10th-clearest and 4th-windiest month. For the whole year in context, see Guamal's year-round climate.

Daytime high
32°
6th warmest
Overnight low
25°
5th coldest
Rainfall
277 mm
26 wet days
Daylight
12 h 18 min
5:52 AM – 6:10 PM
Cloud cover
90%
10th clearest
Wind
5 km/h
4th windiest
Solar energy
5.18 kWh/m²
Travel score
2.2
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical August day in Guamal reaches about 32°C in the afternoon and slips back to 25°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 35°C. Set against its neighbours, August runs on par with July and on par with September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13325
23325
33325
43325
53325
63325
73325
83325
93325
103325
113325
123325
133325
143225
153225
163225
173225
183225
193225
203225
213225
223225
233225
243225
253225
263225
273225
283225
293225
303225
313225

How August really feels in Guamal

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
31 feel dangerously hot (≥ 39°C)
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.

Guamal weather by month

How August compares with the rest of the year at a glance. August is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 25°337.411.53.5
Feb35° / 26°478.211.72.8
Mar34° / 26°11716.611.92.4
Apr33° / 25°27025.512.22.1
May32° / 25°3832912.42.1
Jun32° / 25°29526.212.52.2
Jul33° / 25°2382512.52.3
Aug32° / 25°2772612.32.2
Sep32° / 25°31628.212.12.2
Oct31° / 24°32429.211.82.3
Nov31° / 24°23826.211.62.5
Dec32° / 25°10316.911.53.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 3% of August, with mostly cloudy or overcast conditions the remaining 95%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1595
2595
3595
4595
5595
6496
7496
8496
9496
10496
11397
12496
13496
14496
15496
16496
17496
18496
19496
20496
21496
22595
23595
24595
25595
26595
27595
28595
29595
30694
31694

Chance of precipitation in August

Any precipitation

Guamal gets around 277 mm of rain over 26 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 84% and peaks near 90% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
182
282
382
482
582
682
782
882
982
1082
1182
1282
1383
1483
1583
1683
1784
1884
1984
2085
2185
2286
2386
2487
2587
2688
2788
2889
2989
3090
3190

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 97% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1397
2397
3397
4397
5397
6397
7397
8397
9397
10397
11397
12397
13397
14397
15397
16397
17397
18397
19397
20397
21397
22397
23397
24397
25397
26397
27397
28397
29397
30397
31397

Wind in August

Winds average 5 km/h in August.

Across August, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 24 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 12 minutes over August. Sunrise moves from 5:51 AM to 5:51 AM, and sunset from 6:15 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:516:15
212.45:516:15
312.45:516:15
412.45:516:14
512.45:516:14
612.45:516:14
712.45:516:13
812.45:526:13
912.45:526:13
1012.35:526:12
1112.35:526:12
1212.35:526:12
1312.35:526:11
1412.35:526:11
1512.35:526:11
1612.35:526:10
1712.35:526:10
1812.35:526:09
1912.35:526:09
2012.35:526:08
2112.35:526:08
2212.35:526:07
2312.25:526:07
2412.25:526:06
2512.25:526:06
2612.25:526:05
2712.25:526:05
2812.25:526:04
2912.25:526:04
3012.25:516:03
3112.25:516:02

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.18 kWh/m².

For context, solar energy here swings from a low near 4.44 kWh/m² to a high of 6.01 kWh/m² in March across the year — August's 5.18 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in August

Is August a good time to visit Guamal?

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

2.2
Sightseeing
8th-best month of the year
3.8
Beach & pool
8th-best month of the year

August is a weaker month for outdoor sightseeing in Guamal.

What to pack for Guamal in August

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

In August, Guamal sees daytime highs around 32°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

UV index in Guamal 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 Guamal peaks around March 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 14UV 13Dec 13UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr12Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Guamal 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 Guamal is worst in March — around 47 µg/m³ PM2.5 (poor), about 4.2× the cleanest month (December, 11 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateGoodMar 1744 µg/m³Dec 1211 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb26Moderate
Mar47Poor
Apr27Moderate
May22Moderate
Jun21Moderate
Jul21Moderate
Aug17Moderate
Sep13Moderate
Oct13Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Guamal?

Guamal sits at 9.1°N, 74.2°W, 28 m above sea level, in Colombia. The nearest listed city is Mompós, 25 km away.

Topography around Guamal

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

Within 3 km, the terrain around Guamal has only modest variations in elevation — a maximum elevation change of 15 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 40 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,347 m.

The land around Guamal is covered by grassland (67%) and trees (22%) within 3 km, grassland (65%) within 16 km, and grassland (58%) and trees (22%) within 80 km.

3 km
15 m
16 km
40 m
80 km
1,347 m
treesgrasslandartificial surfaceswaterwetland
August weather nearby: Mompós 25 km · El Banco 31 km · Pinillos 37 km · Chimichagua 47 km · Astrea 48 km · Magangué 59 km · Tiquisio 65 km · Sucre 66 km

Colombia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 / 240 V · 60 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$8,562
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
74%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
15.4
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 480
Religion
Roman Catholic 64%Protestant 17%none 14%atheist 1%

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 Guamal (9.1433°, -74.2238°, elevation 28 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. 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).