San Juan del Cesar weather in January

In January, San Juan del Cesar sees average daytime highs of 28°C and overnight lows near 19°C, with 63 mm of rain across 13.2 wet days and about 11.4 hours of daylight. It is the 11th-warmest and 12th-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 38% of the time in January, and the air most often feels muggy.

Daylight stretches from about 11 h 24 min at the start of January to 11 h 30 min by month's end. Set against the rest of the year, January is San Juan del Cesar's 1st-clearest and 3rd-windiest month. For the whole year in context, see San Juan del Cesar's year-round climate.

Daytime high
28°
11th warmest
Overnight low
19°
1st coldest
Rainfall
63 mm
13.2 wet days
Daylight
11 h 24 min
6:18 AM – 5:44 PM
Cloud cover
50%
1st clearest
Wind
6 km/h
3rd windiest
Solar energy
4.99 kWh/m²
Travel score
6.1
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical January day in San Juan del Cesar reaches about 28°C in the afternoon and slips back to 19°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, January runs on par with December and on par with February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12819
22819
32819
42719
52719
62719
72719
82719
92719
102719
112719
122819
132819
142819
152819
162819
172819
182819
192819
202819
212819
222819
232819
242819
252819
262819
272819
282819
292819
302819
312819

San Juan del Cesar weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 12th-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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 26% of January, with mostly cloudy or overcast conditions the remaining 36%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26238
36238
46238
56337
66337
76337
86337
96337
106436
116337
126337
136337
146337
156337
166337
176337
186337
196436
206436
216436
226436
236436
246535
256535
266634
276535
286634
296634
306634
316535

Chance of precipitation in January

Any precipitation

San Juan del Cesar gets around 63 mm of rain over 13.2 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 43% and peaks near 50% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
150
250
349
449
549
649
749
849
949
1048
1148
1247
1346
1446
1545
1643
1742
1841
1940
2039
2138
2237
2337
2436
2535
2635
2734
2834
2935
3035
3135

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 57% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1128692
2130672
3131671
4132661
5133651
6135631
7136630
8137620
9137620
10138610
11139600
12140590
13141580
14241570
15242560
16242560
17242560
18243550
19243550
20343540
21343540
22343540
23343540
24444520
25444520
26444520
27445510
28445510
29446500
30446491
31447491

Wind in January

Winds average 6 km/h in January.

Across January, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 24 min at the start of January to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over January. Sunrise moves from 6:14 AM to 6:20 AM, and sunset from 5:37 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:145:37
211.46:145:37
311.46:155:38
411.46:155:38
511.46:155:39
611.46:165:39
711.46:165:40
811.46:165:40
911.46:175:41
1011.46:175:41
1111.46:175:42
1211.46:175:42
1311.46:185:43
1411.46:185:43
1511.46:185:44
1611.46:185:44
1711.46:195:45
1811.46:195:45
1911.46:195:46
2011.56:195:46
2111.56:195:47
2211.56:195:47
2311.56:195:48
2411.56:195:48
2511.56:205:49
2611.56:205:49
2711.56:205:49
2811.56:205:50
2911.56:205:50
3011.56:205:51
3111.56:205:51

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.99 kWh/m².

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 — January's 4.99 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.2Bright
315.2Bright
Planning a trip in January

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

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

6.1
Sightseeing
1st-best month of the year
6.4
Beach & pool
2nd-best month of the year

January is a reasonable time to visit San Juan del Cesar for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for San Juan del Cesar in January

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

In January, San Juan del Cesar sees daytime highs around 28°C and nights near 19°C. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

Sea temperature near San Juan del Cesar in January

The nearest coast averages about 25°C in January — 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 January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 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 January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January 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
January 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).