San Martín weather in March

In March, San Martín sees average daytime highs of 29°C and overnight lows near 22°C, with 275 mm of rain across 26.6 wet days and about 11.9 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 12% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is San Martín's 4th-clearest and 6th-windiest month. For the whole year in context, see San Martín's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
22°
10th coldest
Rainfall
275 mm
26.6 wet days
Daylight
11 h 54 min
6:05 AM – 6:02 PM
Cloud cover
75%
4th clearest
Wind
4 km/h
6th windiest
Solar energy
5.51 kWh/m²
Travel score
3.4
out of 10

San Martín is municipality in Cesar, Colombia.

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical March day in San Martín reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, March runs on par with February and on par with April.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12921
22921
32921
42921
52921
62921
72921
82921
92922
102922
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282922
292922
302922
312922

San Martín weather by month

How March compares with the rest of the year at a glance. March is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°11120.211.64.5
Feb29° / 21°14318.711.74.1
Mar29° / 22°27526.611.93.4
Apr28° / 22°47829.612.22.9
May28° / 22°64430.712.43.0
Jun28° / 21°61729.812.53.1
Jul28° / 21°59130.812.43.2
Aug28° / 21°5883112.33.1
Sep28° / 21°50629.8123.2
Oct28° / 21°45230.111.83.3
Nov28° / 21°3782911.63.3
Dec28° / 21°20626.211.53.8

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 13% of March, with mostly cloudy or overcast conditions the remaining 75%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23664
33664
43664
53565
63466
73367
83268
93169
103070
112971
122872
132674
142575
152476
162377
172377
182278
192179
202080
212080
221981
231981
241882
251882
261783
271684
281684
291684
301585
311486

Chance of precipitation in March

Any precipitation

San Martín gets around 275 mm of rain over 26.6 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 86% and peaks near 94% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
175
276
377
478
578
679
780
881
981
1082
1183
1284
1385
1486
1587
1688
1789
1889
1990
2091
2191
2291
2392
2492
2592
2693
2793
2893
2993
3094
3194

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the oppressive band about 69% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
153956
253956
353956
453956
543957
643858
743858
833859
933760
1033661
1123563
1223563
1323464
1423365
1513168
1613069
1712970
1812871
1912772
2012574
2112475
2212376
2312277
2412178
2512079
2611980
2711881
2811782
2911683
3011584
3111485

Wind in March

Winds average 4 km/h in March.

Across March, daily wind ranges from about 4 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
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 48 min at the start of March to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over March. Sunrise moves from 6:12 AM to 5:57 AM, and sunset from 6:02 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:126:02
211.86:126:02
311.86:116:02
411.96:116:02
511.96:116:02
611.96:106:02
711.96:106:02
811.96:096:02
911.96:096:02
1011.96:086:02
1111.96:086:02
1211.96:076:02
1311.96:076:02
1411.96:066:02
1511.96:066:02
1611.96:056:02
1712.06:056:02
1812.06:046:02
1912.06:046:02
2012.06:036:02
2112.06:036:02
2212.06:026:02
2312.06:026:02
2412.06:016:01
2512.06:016:01
2612.06:006:01
2712.05:596:01
2812.05:596:01
2912.05:586:01
3012.15:586:01
3112.15:576:01

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.51 kWh/m².

For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 5.68 kWh/m² in February across the year — March's 5.51 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in March

Is March a good time to visit San Martín?

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

3.4
Sightseeing
4th-best month of the year
4.3
Beach & pool
4th-best month of the year

March is a weaker month for outdoor sightseeing in San Martín.

What to pack for San Martín in March

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

In March, San Martín sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

UV index in San Martín in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 12 (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 Martín peaks around February 16 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 highFeb 16UV 13Dec 13UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar12Extreme
Apr11Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Air quality in San Martín in March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.

Air quality in San Martín is worst in March — around 46 µg/m³ PM2.5 (poor), about 3.7× the cleanest month (December, 13 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1844 µg/m³Dec 1113 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb26Moderate
Mar46Poor
Apr32Moderate
May23Moderate
Jun21Moderate
Jul21Moderate
Aug19Moderate
Sep16Moderate
Oct14Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is San Martín?

San Martín sits at 8.0°N, 73.5°W, 112 m above sea level, in Colombia. The nearest listed city is Ocaña, 31 km away.

Topography around San Martín

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

Within 3 km, the terrain around San Martín has only modest variations in elevation — a maximum elevation change of 53 m around an average of 105 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,315 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,956 m.

The land around San Martín is covered by grassland (63%) and trees (32%) within 3 km, grassland (58%) and trees (41%) within 16 km, and trees (58%) and grassland (40%) within 80 km.

3 km
53 m
16 km
1,315 m
80 km
3,956 m
treesgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Ocaña 31 km · Aguachica 36 km · Simití 48 km · Morales 50 km · Sabana de Torres 68 km · Puerto Wilches 84 km · El Zulia 101 km · Tiquisio 103 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 Martín (8.0018°, -73.5114°, elevation 112 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).