San Juan Nepomuceno weather in January

In January, San Juan Nepomuceno sees average daytime highs of 34°C and overnight lows near 24°C, with 19 mm of rain across 4.6 wet days and about 11.5 hours of daylight. It is the 3rd-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 33°C in the first days to 35°C by the end. The sky is clear or mostly clear about 56% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 h 24 min at the start of January to 11 h 36 min by month's end. Set against the rest of the year, January is San Juan Nepomuceno's 1st-clearest and 3rd-windiest month. For the whole year in context, see San Juan Nepomuceno's year-round climate.

Daytime high
34°
3rd warmest
Overnight low
24°
1st coldest
Rainfall
19 mm
4.6 wet days
Daylight
11 h 30 min
6:25 AM – 5:54 PM
Cloud cover
40%
1st clearest
Wind
6 km/h
3rd windiest
Solar energy
5.34 kWh/m²
Travel score
3.7
out of 10

San Juan Nepomuceno is Colombia.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 33°C in the first days to 35°C by the end.

A typical January day in San Juan Nepomuceno reaches about 34°C in the afternoon and slips back to 24°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 36°C. Set against its neighbours, January runs about 2°C warmer than December and about 1°C cooler than February.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13324
23324
33324
43324
53324
63324
73323
83323
93323
103323
113323
123323
133323
143423
153423
163423
173424
183424
193424
203424
213424
223424
233424
243424
253424
263424
273424
283524
293524
303524
313524

How January really feels in San Juan Nepomuceno

Once humidity and wind are folded in, January 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 January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

San Juan Nepomuceno weather by month

How January compares with the rest of the year at a glance. January is the 3rd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 24°194.611.53.7
Feb35° / 24°235.511.72.8
Mar34° / 25°5812.211.92.6
Apr33° / 25°15023.512.22.3
May32° / 25°24328.112.42.3
Jun32° / 25°17324.112.62.6
Jul32° / 25°14123.612.52.5
Aug32° / 25°18526.712.32.3
Sep31° / 24°21827.212.12.4
Oct31° / 24°25228.411.82.6
Nov31° / 24°1742411.53.0
Dec32° / 24°7313.111.43.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 25%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27228
37327
47327
57426
67426
77525
87525
97525
107525
117426
127426
137426
147426
157426
167426
177426
187426
197525
207525
217525
227624
237624
247723
257723
267723
277723
287723
297723
307723
317723

Chance of precipitation in January

Any precipitation

San Juan Nepomuceno gets around 19 mm of rain over 4.6 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 16% and peaks near 23% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
123
223
322
422
521
620
720
820
919
1019
1118
1218
1317
1416
1516
1615
1714
1813
1913
2012
2112
2211
2311
2410
2510
2610
2711
2811
2912
3012
3113

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 68% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10127612
20137710
3014779
4015778
5116767
6117766
7118765
8119755
9119755
10120754
11121744
12122734
13123733
14125713
15126703
16127702
17129682
18130672
19132652
20133651
21135631
22136621
23137611
24139591
25140590
26141580
27142570
28142570
29243550
30244540
31245521

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
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 24 min at the start of January to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over January. Sunrise moves from 6:21 AM to 6:27 AM, and sunset from 5:46 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:215:46
211.46:215:47
311.46:215:47
411.46:225:48
511.46:225:48
611.46:225:49
711.46:235:49
811.46:235:50
911.46:235:50
1011.56:245:51
1111.56:245:51
1211.56:245:52
1311.56:255:52
1411.56:255:53
1511.56:255:53
1611.56:255:54
1711.56:265:54
1811.56:265:55
1911.56:265:55
2011.56:265:56
2111.56:265:56
2211.56:265:57
2311.56:265:57
2411.56:275:58
2511.56:275:58
2611.56:275:58
2711.56:275:59
2811.56:275:59
2911.56:276:00
3011.66:276:00
3111.66:276:01

Solar energy in January

Daily solar energy (kWh/m²)

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

For context, solar energy here swings from a low near 4.24 kWh/m² to a high of 5.67 kWh/m² in February across the year — January's 5.34 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.6Bright
Planning a trip in January

Is January a good time to visit San Juan Nepomuceno?

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

3.7
Sightseeing
2nd-best month of the year
7.0
Beach & pool
1st-best month of the year

January is a weaker month for outdoor sightseeing in San Juan Nepomuceno. The water and warmth also suit a beach or pool day.

What to pack for San Juan Nepomuceno in January

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

In January, San Juan Nepomuceno sees daytime highs around 34°C and nights near 24°C. Pack light clothes. Worth having: sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near San Juan Nepomuceno in January

The nearest coast averages about 29°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 60 km away) is warmest in July at about 30°C and coldest in March near 28°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb28Tropical
Mar28Warm
Apr28Tropical
May29Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in San Juan Nepomuceno 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 Nepomuceno peaks around June 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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 highJun 11UV 13Dec 12UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun13Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov10Very high
Dec9Very high

Air quality in San Juan Nepomuceno 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 Nepomuceno is worst in March — around 48 µg/m³ PM2.5 (poor), about 3.2× the cleanest month (November, 15 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1745 µg/m³Nov 1915 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb26Moderate
Mar48Poor
Apr30Moderate
May26Moderate
Jun24Moderate
Jul26Moderate
Aug21Moderate
Sep17Moderate
Oct16Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is San Juan Nepomuceno?

San Juan Nepomuceno sits at 10.0°N, 75.1°W, 172 m above sea level, in Colombia. The nearest listed city is San Jacinto, 14 km away.

Topography around San Juan Nepomuceno

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

Within 3 km, the terrain around San Juan Nepomuceno has significant variations in elevation — a maximum elevation change of 294 m around an average of 228 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 786 m; within 80 km, large variations in elevation — a maximum elevation change of 811 m.

The land around San Juan Nepomuceno is covered by trees (47%) and grassland (46%) within 3 km, trees (72%) and grassland (28%) within 16 km, and grassland (53%) and trees (28%) within 80 km.

3 km
294 m
16 km
786 m
80 km
811 m
treesgrasslandartificial surfaceswaterwetlandmangroves
January weather nearby: San Jacinto 14 km · San Pablo 23 km · María la Baja 24 km · El Carmen de Bolívar 26 km · Mahates 33 km · Plato 37 km · Santa Lucía 44 km · Arjona 44 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 Nepomuceno (9.9516°, -75.082°, elevation 172 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).