San Andrés weather in August

In August, San Andrés sees average daytime highs of 28°C and overnight lows near 26°C, with 230 mm of rain across 26.1 wet days and about 12.4 hours of daylight. It is the 1st-warmest and 5th-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 18% of the time in August, and the air most often feels miserable.

Daylight stretches from about 12 h 36 min at the start of August to 12 h 18 min by month's end. Set against the rest of the year, August is San Andrés's 8th-clearest and 9th-windiest month. For the whole year in context, see San Andrés's year-round climate.

Daytime high
28°
1st warmest
Overnight low
26°
11th coldest
Rainfall
230 mm
26.1 wet days
Daylight
12 h 24 min
6:18 AM – 6:44 PM
Cloud cover
73%
8th clearest
Wind
21 km/h
9th windiest
Solar energy
5.59 kWh/m²
Travel score
3.9
out of 10

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 San Andrés 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 29°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 San Andrés

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.

San Andrés weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°5715.611.36.2
Feb27° / 25°279.311.67.1
Mar27° / 26°186.511.97.6
Apr27° / 26°276.812.37.2
May28° / 26°14519.112.65.0
Jun28° / 26°24525.412.73.9
Jul28° / 26°24725.412.74.0
Aug28° / 26°23026.112.43.9
Sep28° / 26°22226.212.13.7
Oct28° / 26°29828.111.73.7
Nov27° / 26°26225.311.44.1
Dec27° / 26°11420.411.35.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 69%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
22971
32971
42971
52971
62971
72971
83070
93070
103070
113070
123070
133070
143169
153169
163169
173169
183268
193268
203268
213268
223268
233268
243268
253268
263169
273169
283169
293070
303070
312971

Chance of precipitation in August

Any precipitation

San Andrés gets around 230 mm of rain over 26.1 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 86% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
181
282
382
483
583
684
784
885
985
1085
1186
1286
1386
1485
1585
1685
1785
1884
1984
2084
2184
2283
2383
2483
2584
2684
2784
2884
2984
3085
3185

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 82% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11684
21783
31783
41783
51783
61783
71783
81783
91783
101783
111783
121783
131783
141783
151783
161882
171882
181882
191882
201882
211882
221882
231882
241882
251882
261882
271882
281882
291981
302080
312080

Wind in August

Winds average 21 km/h in August.

Across August, daily wind ranges from about 18 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
124breezy
224breezy
324breezy
423breezy
523breezy
623breezy
723breezy
823breezy
923breezy
1022breezy
1122breezy
1222breezy
1322breezy
1422breezy
1521breezy
1621breezy
1721breezy
1821breezy
1920breezy
2020breezy
2120light breeze
2220light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 36 min at the start of August to 12 h 18 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 6:16 AM to 6:19 AM, and sunset from 6:50 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:166:50
212.66:166:49
312.56:166:49
412.56:176:49
512.56:176:48
612.56:176:48
712.56:176:48
812.56:176:47
912.56:176:47
1012.56:186:46
1112.56:186:46
1212.56:186:45
1312.56:186:45
1412.46:186:45
1512.46:186:44
1612.46:186:44
1712.46:186:43
1812.46:186:42
1912.46:196:42
2012.46:196:41
2112.46:196:41
2212.46:196:40
2312.36:196:40
2412.36:196:39
2512.36:196:38
2612.36:196:38
2712.36:196:37
2812.36:196:37
2912.36:196:36
3012.36:196:35
3112.36:196:35

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.59 kWh/m².

For context, solar energy here swings from a low near 4.46 kWh/m² to a high of 6.63 kWh/m² in April across the year — August's 5.59 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in August

Hazard calendar for San Andrés

In seasonPeak

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

San Andrés sits in the Atlantic hurricane belt; the season peaks August–October.

San Andrés's rainy season runs May–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 San Andrés?

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

3.9
Sightseeing
9th-best month of the year
4.3
Beach & pool
9th-best month of the year

August is a weaker month for outdoor sightseeing in San Andrés.

What to pack for San Andrés in August

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

In August, San Andrés 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 26 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near San Andrés 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
May28Tropical
Jun28Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in San Andrés 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 San Andrés peaks around April 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 highApr 14UV 13Dec 16UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun13Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov10Very high
Dec9Very high

Air quality in San Andrés 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 San Andrés is worst in July — around 35 µg/m³ PM2.5 (moderate), about 4.4× the cleanest month (November, 8 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1434 µg/m³Nov 178 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar11Good
Apr15Moderate
May24Moderate
Jun31Moderate
Jul35Moderate
Aug26Moderate
Sep16Moderate
Oct11Good
Nov8Good
Dec11Good
Location & terrain

Where is San Andrés?

San Andrés sits at 12.6°N, 81.7°W, in Colombia. The nearest listed city is Pearl Lagoon, 216 km away.

Topography around San Andrés

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

Within 3 km, the terrain around San Andrés has only modest variations in elevation — a maximum elevation change of 91 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 91 m; within 80 km, only modest variations in elevation — a maximum elevation change of 86 m.

The land around San Andrés is covered by water (70%) within 3 km, water (97%) within 16 km, and water (100%) within 80 km.

3 km
91 m
16 km
91 m
80 km
86 m
treesgrasslandartificial surfacesbare terrainwatermangroves
August weather nearby: Pearl Lagoon 216 km · Bluefields 233 km · Puerto Cabezas 244 km · Rama 278 km · Nueva Guinea 316 km · Puerto Limón 323 km · Siquirres 339 km · El Castillo 341 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 San Andrés (12.5786°, -81.6997°), 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).