San Juan del Cesar weather in August

In August, San Juan del Cesar sees average daytime highs of 30°C and overnight lows near 21°C, with 229 mm of rain across 29.4 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 30°C through the month. The sky is clear or mostly clear about 2% of the time in August, and the air most often feels muggy.

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 San Juan del Cesar's 9th-clearest and 10th-windiest month. For the whole year in context, see San Juan del Cesar's year-round climate.

Daytime high
30°
1st warmest
Overnight low
21°
11th coldest
Rainfall
229 mm
29.4 wet days
Daylight
12 h 24 min
5:45 AM – 6:07 PM
Cloud cover
87%
9th clearest
Wind
3 km/h
10th windiest
Solar energy
5.61 kWh/m²
Travel score
2.8
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical August day in San Juan del Cesar reaches about 30°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, August runs on par with July and on par with September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12921
22921
32921
43021
53021
63021
73021
83021
93021
103021
113021
123021
133021
143021
153021
163021
173021
183021
193021
203021
213021
223021
233021
242921
252921
262921
272921
282921
292921
302921
312921

San Juan del Cesar 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
Jan28° / 19°6313.211.46.1
Feb28° / 19°6311.611.65.7
Mar28° / 20°14317.311.94.8
Apr28° / 21°27424.612.23.6
May29° / 21°32728.612.53.1
Jun29° / 21°1792512.63.3
Jul29° / 21°18526.912.63.2
Aug30° / 21°22929.412.42.8
Sep29° / 21°24829.312.12.8
Oct28° / 20°26929.411.83.2
Nov28° / 20°22225.211.53.9
Dec28° / 20°12118.711.45.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 5% of August, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2892
3793
4793
5793
6793
7793
8793
9694
10694
11694
12694
13694
14694
15694
16694
17694
18694
19694
20694
21793
22892
23892
24892
25892
26892
27991
28991
29991
30991
31991

Chance of precipitation in August

Any precipitation

San Juan del Cesar gets around 229 mm of rain over 29.4 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 95% and peaks near 96% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
193
293
393
493
593
694
794
894
994
1094
1194
1294
1394
1495
1595
1695
1795
1895
1995
2095
2195
2295
2395
2495
2596
2696
2796
2896
2996
3096
3196

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 71% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)
17030
27030
36931
46931
56832
66832
76832
86832
96832
106733
116832
126832
136832
146931
156931
167030
177129
187129
197228
207327
217327
227426
237426
247525
257525
267525
277525
287624
297624
307624
317624

Wind in August

Winds average 3 km/h in August.

Across August, daily wind ranges from about 3 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm
313calm

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 5:44 AM to 5:45 AM, and sunset from 6:12 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:446:12
212.55:446:12
312.55:446:12
412.55:446:12
512.45:446:11
612.45:446:11
712.45:456:11
812.45:456:10
912.45:456:10
1012.45:456:09
1112.45:456:09
1212.45:456:09
1312.45:456:08
1412.45:456:08
1512.45:456:07
1612.45:456:07
1712.35:456:06
1812.35:456:06
1912.35:456:05
2012.35:466:05
2112.35:466:04
2212.35:466:04
2312.35:466:03
2412.35:466:03
2512.35:466:02
2612.35:466:02
2712.35:466:01
2812.25:466:00
2912.25:466:00
3012.25:465:59
3112.25:455:59

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.61 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.41 kWh/m² to a high of 5.61 kWh/m² in August across the year — August's 5.61 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
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
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in August

Is August a good time to visit San Juan del Cesar?

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

2.8
Sightseeing
11th-best month of the year
3.7
Beach & pool
10th-best month of the year

August is a weaker month for outdoor sightseeing in San Juan del Cesar.

What to pack for San Juan del Cesar in August

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

In August, San Juan del Cesar sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

Sea temperature near San Juan del Cesar in August

The nearest coast averages about 28°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 68 km away) is warmest in October at about 29°C and coldest in February near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar25Warm
Apr26Warm
May27Warm
Jun28Warm
Jul27Warm
Aug28Warm
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in San Juan del Cesar in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 13 (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 Juan del Cesar peaks around April 11 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 11UV 14Dec 12UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Air quality in San Juan del Cesar 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 Juan del Cesar is worst in March — around 34 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (December, 12 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1932 µg/m³Dec 1812 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb20Moderate
Mar34Moderate
Apr27Moderate
May26Moderate
Jun27Moderate
Jul25Moderate
Aug27Moderate
Sep18Moderate
Oct16Moderate
Nov13Moderate
Dec12Good
Location & terrain

Where is San Juan del Cesar?

San Juan del Cesar sits at 10.8°N, 73.0°W, 214 m above sea level, in Colombia. The nearest listed city is Villanueva, 18 km away.

Topography around San Juan del Cesar

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

Within 3 km, the terrain around San Juan del Cesar has only modest variations in elevation — a maximum elevation change of 105 m around an average of 214 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,124 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,722 m.

The land around San Juan del Cesar is covered by grassland (64%) within 3 km, grassland (49%) and trees (38%) within 16 km, and trees (65%) and grassland (22%) within 80 km.

3 km
105 m
16 km
1,124 m
80 km
5,722 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Villanueva 18 km · Fonseca 21 km · Barrancas 31 km · Hatonuevo 42 km · Valledupar 44 km · San Diego 52 km · Albania 62 km · Agustín Codazzi 86 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 Juan del Cesar (10.7711°, -73.0031°, elevation 214 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).