Tolú Viejo weather in January

In January, Tolú Viejo sees average daytime highs of 32°C and overnight lows near 24°C, with 27 mm of rain across 7.8 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 32°C through the month. The sky is clear or mostly clear about 51% 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 Tolú Viejo's 1st-clearest and 3rd-windiest month. For the whole year in context, see Tolú Viejo's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
24°
4th coldest
Rainfall
27 mm
7.8 wet days
Daylight
11 h 30 min
6:26 AM – 5:56 PM
Cloud cover
44%
1st clearest
Wind
8 km/h
3rd windiest
Solar energy
5.46 kWh/m²
Travel score
4.6
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical January day in Tolú Viejo reaches about 32°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, January runs on par with December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153224
163224
173224
183224
193224
203224
213224
223224
233224
243225
253225
263225
273225
283225
293225
303225
313225

How January really feels in Tolú Viejo

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.

Tolú Viejo 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
Jan32° / 24°277.811.54.6
Feb32° / 25°317.811.74.2
Mar32° / 25°6615.511.93.5
Apr31° / 25°16725.612.22.7
May31° / 25°26329.512.42.4
Jun31° / 25°24928.112.52.4
Jul31° / 25°2282812.52.5
Aug31° / 25°2392912.32.5
Sep30° / 24°24029.112.12.5
Oct30° / 24°24029.811.82.6
Nov30° / 24°18027.211.62.8
Dec31° / 24°871811.53.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% 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 29%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26535
36634
46733
56832
66832
76931
86931
97030
107129
117129
127129
137228
147129
157129
167228
177228
187228
197228
207327
217228
227327
237327
247327
257426
267327
277327
287426
297327
307327
317228

Chance of precipitation in January

Any precipitation

Tolú Viejo gets around 27 mm of rain over 7.8 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 26% and peaks near 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
335
435
534
634
733
833
932
1032
1131
1230
1329
1428
1526
1625
1724
1823
1922
2021
2120
2219
2319
2418
2518
2618
2718
2818
2919
3020
3120

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 66% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
115247
215445
315544
415742
515841
615940
716138
816237
916336
1016435
1116534
1226533
1326632
1426632
1526731
1626830
1726929
1826929
1927028
2027127
2127127
2227226
2327325
2427325
2537225
2637324
2737324
2837324
2937324
3037324
3147323

Wind in January

Winds average 8 km/h in January.

Across January, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 6:21 AM to 6:28 AM, and sunset from 5:49 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:215:49
211.56:225:49
311.56:225:50
411.56:225:50
511.56:235:51
611.56:235:51
711.56:235:52
811.56:245:52
911.56:245:53
1011.56:245:53
1111.56:255:54
1211.56:255:54
1311.56:255:55
1411.56:255:55
1511.56:265:56
1611.56:265:56
1711.56:265:57
1811.56:265:57
1911.56:275:58
2011.56:275:58
2111.56:275:58
2211.56:275:59
2311.56:275:59
2411.56:276:00
2511.56:276:00
2611.66:276:01
2711.66:276:01
2811.66:286:01
2911.66:286:02
3011.66:286:02
3111.66:286:03

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.46 kWh/m².

For context, solar energy here swings from a low near 4.49 kWh/m² to a high of 5.9 kWh/m² in March across the year — January's 5.46 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in January

Is January a good time to visit Tolú Viejo?

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

4.6
Sightseeing
1st-best month of the year
7.0
Beach & pool
1st-best month of the year

January is a reasonable time to visit Tolú Viejo for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Tolú Viejo in January

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

In January, Tolú Viejo sees daytime highs around 32°C and nights near 24°C. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

Sea temperature near Tolú Viejo 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 28 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
Mar28Tropical
Apr29Tropical
May29Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Tolú Viejo 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 Tolú Viejo peaks around June 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 highJun 10UV 13Dec 13UV 10
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar12Extreme
Apr12Extreme
May13Extreme
Jun13Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec10Very high

Air quality in Tolú Viejo 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 Tolú Viejo is worst in July — around 26 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (November, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateMar 2325 µg/m³Nov 1111 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb18Moderate
Mar26Moderate
Apr25Moderate
May25Moderate
Jun23Moderate
Jul26Moderate
Aug20Moderate
Sep14Moderate
Oct12Good
Nov11Good
Dec14Moderate
Location & terrain

Where is Tolú Viejo?

Tolú Viejo sits at 9.5°N, 75.4°W, 68 m above sea level, in Colombia. The nearest listed city is Sincelejo, 17 km away.

Topography around Tolú Viejo

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

Within 3 km, the terrain around Tolú Viejo has significant variations in elevation — a maximum elevation change of 260 m around an average of 88 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 579 m; within 80 km, large variations in elevation — a maximum elevation change of 810 m.

The land around Tolú Viejo is covered by grassland (58%) and trees (39%) within 3 km, grassland (68%) and trees (31%) within 16 km, and grassland (53%), trees (21%) and water (21%) within 80 km.

3 km
260 m
16 km
579 m
80 km
810 m
treesgrasslandartificial surfaceswaterwetlandmangroves
January weather nearby: Sincelejo 17 km · Santiago de Tolú 18 km · Corozal 22 km · Sampués 30 km · San Onofre 33 km · Momil 35 km · San Antero 36 km · Chinú 39 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 Tolú Viejo (9.4508°, -75.4386°, elevation 68 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).