Mercedes weather in March

In March, Mercedes sees average daytime highs of 27°C and overnight lows near 17°C, with 111 mm of rain across 8.1 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 25°C by the end. The sky is clear or mostly clear about 47% of the time in March, and the air most often feels humid.

Daylight stretches from about 12 h 48 min at the start of March to 11 h 42 min by month's end. Set against the rest of the year, March is Mercedes's 3rd-clearest and 12th-windiest month. For the whole year in context, see Mercedes's year-round climate.

Daytime high
27°
4th warmest
Overnight low
17°
9th coldest
Rainfall
111 mm
8.1 wet days
Daylight
12 h 18 min
7:54 AM – 8:09 PM
Cloud cover
46%
3rd clearest
Wind
12 km/h
12th windiest
Solar energy
5.1 kWh/m²
Travel score
7.0
out of 10

Mercedes is city in Uruguay.

Density
1,770/km²
people per km²
Founded
1788

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 28°C in the first days to 25°C by the end.

A typical March day in Mercedes reaches about 27°C in the afternoon and slips back to 17°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 31°C. Set against its neighbours, March runs about 2°C cooler than February and about 4°C warmer than April.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12818
22818
32818
42818
52818
62818
72818
82818
92818
102818
112818
122717
132717
142717
152717
162717
172717
182717
192717
202617
212616
222616
232616
242616
252616
262616
272616
282616
292616
302515
312515

Mercedes weather by month

How March compares with the rest of the year at a glance. March is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 19°997.6145.3
Feb29° / 19°1128.113.25.9
Mar27° / 17°1118.112.37.0
Apr23° / 14°1298.311.27.2
May19° / 11°806.710.36.6
Jun16° / 7479.85.6
Jul16° / 656.4105.4
Aug18° / 896.710.86.4
Sep20° / 10°857.511.86.7
Oct23° / 13°1229.412.87.0
Nov26° / 15°1057.513.77.2
Dec29° / 18°1178.114.26.1

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 15% of March, with mostly cloudy or overcast conditions the remaining 38%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36436
46436
56535
66535
76535
86436
96436
106436
116337
126337
136337
146238
156238
166238
176139
186139
196238
206238
216238
226139
236139
246139
256139
266139
276238
286139
296139
306040
316139

Chance of precipitation in March

Any precipitation

Mercedes gets around 111 mm of rain over 8.1 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 27% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
427
527
627
727
828
928
1028
1128
1228
1328
1428
1527
1627
1727
1827
1927
2026
2126
2226
2326
2425
2525
2625
2725
2825
2925
3025
3126

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the humid band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 29% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11021292713
21021292613
31021292613
41022292513
51122302513
61122302512
71122302512
81222302511
91222302511
101322302410
111323302410
12142330249
13152330238
14162430238
15172430237
16182529226
17192529225
18202529224
19212529224
20222529213
21222529213
22232529212
23242529202
24252529202
25252529202
26262628191
27262628191
28262628181
29272627181
30272627181
31282727172

Wind in March

Winds average 12 km/h in March, the calmest month.

Across March, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 48 min at the start of March to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over March. Sunrise moves from 7:42 AM to 8:05 AM, and sunset from 8:29 PM to 7:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.87:428:29
212.77:438:27
312.77:448:26
412.77:458:25
512.67:458:24
612.67:468:22
712.67:478:21
812.57:488:20
912.57:498:19
1012.57:498:17
1112.47:508:16
1212.47:518:15
1312.47:528:13
1412.37:538:12
1512.37:538:11
1612.37:548:09
1712.27:558:08
1812.27:568:07
1912.17:568:05
2012.17:578:04
2112.17:588:03
2212.07:598:01
2312.07:598:00
2412.08:007:59
2511.98:017:57
2611.98:027:56
2711.98:027:54
2811.88:037:53
2911.88:047:52
3011.88:057:50
3111.78:057:49

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.1 kWh/m².

For context, solar energy here swings from a low near 2.3 kWh/m² to a high of 7.35 kWh/m² in December across the year — March's 5.1 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.6Bright
35.6Bright
45.5Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.4Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.1Bright
165.1Bright
175.0Bright
185.0Bright
194.9Bright
204.9Bright
214.9Bright
224.8Bright
234.8Bright
244.7Bright
254.7Bright
264.7Bright
274.6Bright
284.5Bright
294.5Bright
304.5Bright
314.4Bright
Planning a trip in March

Is March a good time to visit Mercedes?

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

7.0
Sightseeing
3rd-best month of the year
7.0
Beach & pool
4th-best month of the year

March is one of the better times to visit Mercedes for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Mercedes in March

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

In March, Mercedes sees daytime highs around 27°C and nights near 17°C. Worth packing: light clothes, rain gear and sun protection. About 8 days see rain.

light clothesrain gearsun protection

UV index in Mercedes in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mercedes peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 15UV 13Jun 20UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Mercedes?

Mercedes sits at 33.3°S, 58.0°W, 29 m above sea level, in Uruguay. The nearest listed city is Fray Bentos, 30 km away.

Fray BentosDoloresGualeguaychúYoungCarmeloConcepción del UruguayPaysandúTrinidad

Topography around Mercedes

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

Within 3 km, the terrain around Mercedes has only modest variations in elevation — a maximum elevation change of 65 m around an average of 21 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 86 m; within 80 km, only modest variations in elevation — a maximum elevation change of 157 m.

The land around Mercedes is covered by grassland (41%) and artificial surfaces (22%) within 3 km, cropland (43%) and grassland (29%) within 16 km, and cropland (42%) and grassland (32%) within 80 km.

3 km
65 m
16 km
86 m
80 km
157 m
treesgrasslandcroplandartificial surfaceswaterwetland
March weather nearby: Fray Bentos 30 km · Dolores 35 km · Gualeguaychú 53 km · Young 72 km · Carmelo 86 km · Concepción del Uruguay 87 km · Paysandú 104 km · Trinidad 109 km

Uruguay travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / I / L
230 V · 50 Hz
Prices
≈ 66% of US
price level, 2025
GDP per capita
$25,216
2025
Happiness
6.6 / 10
World Happiness, 2025
Homicide rate
11.2
per 100k, 2023
Road deaths
14.8
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 542
Religion
none 47%Roman Catholic 37%Protestant 15%atheist 10%

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 Mercedes (-33.2524°, -58.0305°, elevation 29 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).