Guamal weather in January

In January, Guamal sees average daytime highs of 34°C and overnight lows near 25°C, with 33 mm of rain across 7.4 wet days and about 11.5 hours of daylight. It is the 3rd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 53% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 h 30 min at the start of January to 11 h 36 min by month's end. Set against the rest of the year, January is Guamal's 1st-clearest and 3rd-windiest month. For the whole year in context, see Guamal's year-round climate.

Daytime high
34°
3rd warmest
Overnight low
25°
9th coldest
Rainfall
33 mm
7.4 wet days
Daylight
11 h 30 min
6:21 AM – 5:52 PM
Cloud cover
42%
1st clearest
Wind
5 km/h
3rd windiest
Solar energy
5.55 kWh/m²
Travel score
3.5
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical January day in Guamal reaches about 34°C in the afternoon and slips back to 25°C overnight — a 9°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 1°C warmer than December and about 1°C cooler than February.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13325
23325
33325
43325
53325
63325
73325
83325
93325
103325
113325
123325
133325
143425
153425
163425
173425
183425
193425
203425
213425
223425
233425
243425
253425
263425
273425
283425
293425
303425
313426

How January really feels in Guamal

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
31 feel dangerously hot (≥ 39°C)
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.

Guamal 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° / 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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of January, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26634
36733
46832
56832
66931
76931
87030
97129
107129
117129
127030
137129
147129
157129
167129
177129
187129
197228
207129
217228
227228
237228
247228
257228
267327
277228
287228
297228
307228
317228

Chance of precipitation in January

Any precipitation

Guamal gets around 33 mm of rain over 7.4 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 25% and peaks near 34% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
134
233
333
432
531
631
731
830
930
1029
1129
1228
1328
1427
1526
1625
1724
1823
1922
2021
2120
2220
2319
2419
2518
2619
2719
2819
2920
3020
3121

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 56% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1054352
2054352
3064450
4064548
5064647
6074746
7074845
8074944
9075043
10075241
11075340
12075439
13085438
14085537
15085735
16085834
17085933
18095932
19096031
20096130
21096229
220106228
230106327
240106426
250106426
260116425
270116524
280116524
291116523
301126423
311126423

Wind in January

Winds average 5 km/h in January.

Across January, daily wind ranges from about 5 km/h on the calmest days to 6 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
296calm
306calm
316calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 30 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 6 minutes over January. Sunrise moves from 6:16 AM to 6:22 AM, and sunset from 5:44 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:165:44
211.56:165:45
311.56:175:45
411.56:175:46
511.56:175:46
611.56:185:47
711.56:185:47
811.56:185:48
911.56:195:48
1011.56:195:49
1111.56:195:49
1211.56:205:50
1311.56:205:50
1411.56:205:51
1511.56:205:51
1611.56:215:52
1711.56:215:52
1811.56:215:53
1911.56:215:53
2011.56:215:54
2111.56:225:54
2211.56:225:55
2311.66:225:55
2411.66:225:55
2511.66:225:56
2611.66:225:56
2711.66:225:57
2811.66:225:57
2911.66:225:57
3011.66:225:58
3111.66:225:58

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.55 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 — January's 5.55 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in January

Is January a good time to visit Guamal?

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

3.5
Sightseeing
1st-best month of the year
6.6
Beach & pool
1st-best month of the year

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

What to pack for Guamal in January

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

In January, Guamal sees daytime highs around 34°C and nights near 25°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Guamal 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 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 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 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
January 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).