San Luis weather in March

In March, San Luis sees average daytime highs of 26°C and overnight lows near 15°C, with 80 mm of rain across 10.1 wet days and about 12.3 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 24°C by the end. The sky is clear or mostly clear about 53% of the time in March, and the air most often feels dry.

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 San Luis's 8th-clearest and 8th-windiest month. For the whole year in context, see San Luis's year-round climate.

Daytime high: 26°; 5th warmest
Overnight low: 15°; 9th coldest
Rainfall: 80 mm; 10.1 wet days
Daylight: 12 h 18 min; 7:27 AM – 7:43 PM
Cloud cover: 41%; 8th clearest
Wind: 10 km/h; 8th windiest
Solar energy: 5.18 kWh/m²
Travel score: 7.1; out of 10

San Luis is capital city of the San Luis Province in the Cuyo region of Argentina.

Founded: 1594

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

← February San Luis year-round climate April →Best places to visit in March

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 27°C in the first days to 24°C by the end.

A typical March day in San Luis reaches about 26°C in the afternoon and slips back to 15°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 31°C. Set against its neighbours, March runs about 2°C cooler than February and about 4°C warmer than April.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	27	27	27	27	27	27	27	27	27	27	26	26	26	26	26	26	26	25	25	25	25	25	25	25	24	24	24	24	24	24	24
Avg low (°C)	17	17	16	16	16	16	16	16	16	16	16	16	16	16	15	15	15	15	15	15	15	14	14	14	14	14	14	14	14	13	13

	Avg high (°C)	Avg low (°C)
1	27	17
2	27	17
3	27	16
4	27	16
5	27	16
6	27	16
7	27	16
8	27	16
9	27	16
10	27	16
11	26	16
12	26	16
13	26	16
14	26	16
15	26	15
16	26	15
17	26	15
18	25	15
19	25	15
20	25	15
21	25	15
22	25	14
23	25	14
24	25	14
25	24	14
26	24	14
27	24	14
28	24	14
29	24	14
30	24	13
31	24	13

San Luis weather by month

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

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	29° / 18°	107	13.3	14	5.3
Feb	28° / 17°	81	10.9	13.2	6.3
Mar	26° / 15°	80	10.1	12.3	7.1
Apr	22° / 11°	53	7	11.2	7.4
May	18° / 8°	25	4.2	10.3	6.8
Jun	16° / 5°	8	1.9	9.8	6.3
Jul	16° / 4°	9	2.1	10	6.1
Aug	18° / 6°	15	2.6	10.8	7.4
Sep	21° / 9°	30	4.6	11.8	7.6
Oct	24° / 12°	66	8.7	12.8	7.5
Nov	26° / 14°	89	11.7	13.7	6.7
Dec	28° / 17°	102	13.1	14.2	5.8

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 18% of March, with mostly cloudy or overcast conditions the remaining 29%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	76	77	77	76	76	75	75	73	72	72	72	70	70	70	70	70	70	70	70	70	70	70	69	69	69	68	68	67	67	67	67
Cloudier (%)	24	23	23	24	24	25	25	27	28	28	28	30	30	30	30	30	30	30	30	30	30	30	31	31	31	32	32	33	33	33	33

	Clearer (%)	Cloudier (%)
1	76	24
2	77	23
3	77	23
4	76	24
5	76	24
6	75	25
7	75	25
8	73	27
9	72	28
10	72	28
11	72	28
12	70	30
13	70	30
14	70	30
15	70	30
16	70	30
17	70	30
18	70	30
19	70	30
20	70	30
21	70	30
22	70	30
23	69	31
24	69	31
25	69	31
26	68	32
27	68	32
28	67	33
29	67	33
30	67	33
31	67	33

Chance of precipitation in March

Any precipitation

San Luis gets around 80 mm of rain over 10.1 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 33% and peaks near 35% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	33	33	33	34	34	34	35	35	35	35	35	35	35	34	34	33	33	33	32	32	31	31	30	30	30	30	30	30	30	30	29

	Rain chance (%)
1	33
2	33
3	33
4	34
5	34
6	34
7	35
8	35
9	35
10	35
11	35
12	35
13	35
14	34
15	34
16	33
17	33
18	33
19	32
20	32
21	31
22	31
23	30
24	30
25	30
26	30
27	30
28	30
29	30
30	30
31	29

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 48% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	39	39	38	38	38	38	38	39	39	40	40	41	42	44	45	47	48	50	51	52	54	56	56	58	59	61	61	62	63	65	65
Comfortable (%)	31	31	31	31	31	31	31	30	30	30	30	30	29	29	29	29	29	29	29	29	28	28	28	27	27	26	26	26	25	24	24
Humid (%)	25	25	26	26	26	26	26	26	26	25	25	24	23	22	21	20	19	18	17	16	15	14	14	13	13	12	12	11	11	10	10
Muggy (%)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	4	4	4	3	3	3	2	2	2	1	1	1	1	1	1	1

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	39	31	25	5
2	39	31	25	5
3	38	31	26	5
4	38	31	26	5
5	38	31	26	5
6	38	31	26	5
7	38	31	26	5
8	39	30	26	5
9	39	30	26	5
10	40	30	25	5
11	40	30	25	5
12	41	30	24	5
13	42	29	23	5
14	44	29	22	5
15	45	29	21	5
16	47	29	20	4
17	48	29	19	4
18	50	29	18	4
19	51	29	17	3
20	52	29	16	3
21	54	28	15	3
22	56	28	14	2
23	56	28	14	2
24	58	27	13	2
25	59	27	13	1
26	61	26	12	1
27	61	26	12	1
28	62	26	11	1
29	63	25	11	1
30	65	24	10	1
31	65	24	10	1

Wind in March

Winds average 10 km/h in March.

Across March, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	11	11	11	11	11	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	11	calm
2	11	calm
3	11	calm
4	11	calm
5	11	calm
6	10	calm
7	10	calm
8	10	calm
9	10	calm
10	10	calm
11	10	calm
12	10	calm
13	10	calm
14	10	calm
15	10	calm
16	10	calm
17	10	calm
18	10	calm
19	10	calm
20	10	calm
21	10	calm
22	10	calm
23	10	calm
24	10	calm
25	10	calm
26	10	calm
27	10	calm
28	10	calm
29	10	calm
30	10	calm
31	10	calm

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 7:15 AM to 7:38 AM, and sunset from 8:02 PM to 7:22 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	12.8	12.7	12.7	12.7	12.6	12.6	12.6	12.5	12.5	12.5	12.4	12.4	12.4	12.3	12.3	12.3	12.2	12.2	12.2	12.1	12.1	12.0	12.0	12.0	11.9	11.9	11.9	11.8	11.8	11.8	11.7
Sunrise (AM)	7:15	7:16	7:17	7:18	7:19	7:19	7:20	7:21	7:22	7:23	7:23	7:24	7:25	7:26	7:27	7:27	7:28	7:29	7:30	7:30	7:31	7:32	7:33	7:33	7:34	7:35	7:36	7:36	7:37	7:38	7:38
Sunset (PM)	8:02	8:01	7:59	7:58	7:57	7:56	7:54	7:53	7:52	7:51	7:49	7:48	7:47	7:45	7:44	7:43	7:41	7:40	7:39	7:37	7:36	7:34	7:33	7:32	7:30	7:29	7:28	7:26	7:25	7:23	7:22

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.8	7:15	8:02
2	12.7	7:16	8:01
3	12.7	7:17	7:59
4	12.7	7:18	7:58
5	12.6	7:19	7:57
6	12.6	7:19	7:56
7	12.6	7:20	7:54
8	12.5	7:21	7:53
9	12.5	7:22	7:52
10	12.5	7:23	7:51
11	12.4	7:23	7:49
12	12.4	7:24	7:48
13	12.4	7:25	7:47
14	12.3	7:26	7:45
15	12.3	7:27	7:44
16	12.3	7:27	7:43
17	12.2	7:28	7:41
18	12.2	7:29	7:40
19	12.2	7:30	7:39
20	12.1	7:30	7:37
21	12.1	7:31	7:36
22	12.0	7:32	7:34
23	12.0	7:33	7:33
24	12.0	7:33	7:32
25	11.9	7:34	7:30
26	11.9	7:35	7:29
27	11.9	7:36	7:28
28	11.8	7:36	7:26
29	11.8	7:37	7:25
30	11.8	7:38	7:23
31	11.7	7:38	7:22

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.18 kWh/m².

For context, solar energy here swings from a low near 2.78 kWh/m² to a high of 7.59 kWh/m² in December across the year — March's 5.18 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	6.0	5.9	5.9	5.8	5.8	5.7	5.6	5.6	5.5	5.5	5.4	5.3	5.3	5.3	5.2	5.2	5.1	5.1	5.0	5.0	4.9	4.9	4.8	4.8	4.8	4.7	4.6	4.6	4.5	4.5	4.4
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	6.0	Bright
2	5.9	Bright
3	5.9	Bright
4	5.8	Bright
5	5.8	Bright
6	5.7	Bright
7	5.6	Bright
8	5.6	Bright
9	5.5	Bright
10	5.5	Bright
11	5.4	Bright
12	5.3	Bright
13	5.3	Bright
14	5.3	Bright
15	5.2	Bright
16	5.2	Bright
17	5.1	Bright
18	5.1	Bright
19	5.0	Bright
20	5.0	Bright
21	4.9	Bright
22	4.9	Bright
23	4.8	Bright
24	4.8	Bright
25	4.8	Bright
26	4.7	Bright
27	4.6	Bright
28	4.6	Bright
29	4.5	Bright
30	4.5	Bright
31	4.4	Bright

Planning a trip in March

Hazard calendar for San Luis

In seasonPeak

In March, San Luis sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

San Luis's rainy season runs October–April, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is March a good time to visit San Luis?

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

7.1

Sightseeing

5th-best month of the year

6.6

Beach & pool

4th-best month of the year

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

What to pack for San Luis in March

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

In March, San Luis sees daytime highs around 26°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in San Luis 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 San Luis peaks around January 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	14	13	10	6	4	3	3	4	6	10	12	13
Level	Extreme	Extreme	Extreme	High	Moderate	Moderate	Moderate	Moderate	High	Very high	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	13	Extreme
Mar	10	Extreme
Apr	6	High
May	4	Moderate
Jun	3	Moderate
Jul	3	Moderate
Aug	4	Moderate
Sep	6	High
Oct	10	Very high
Nov	12	Extreme
Dec	13	Extreme

Location & terrain

Where is San Luis?

San Luis sits at 33.3°S, 66.3°W, 729 m above sea level, in Argentina. The nearest listed city is Villa Mercedes, 91 km away.

Topography around San Luis

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

Within 3 km, the terrain around San Luis has only modest variations in elevation — a maximum elevation change of 121 m around an average of 743 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,416 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,820 m.

The land around San Luis is covered by artificial surfaces (72%) within 3 km, shrubs (50%) and grassland (24%) within 16 km, and shrubs (59%) and grassland (22%) within 80 km.

3 km

121 m

artificial surfaces 72%

16 km

1,416 m

shrubs 50%

80 km

1,820 m

shrubs 59%

treesshrubsgrasslandcroplandartificial surfacesbare terrain

← February San Luis year-round climate April →Best places to visit in March

March weather nearby: Villa Mercedes 91 km · Villa Dolores 184 km · Río Cuarto 184 km · Rivadavia 199 km · San Martín 201 km · Embalse 217 km · Rodeo del Medio 222 km · General Alvear 226 km

Argentina travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type C / I; 220 V · 50 Hz
Prices: ≈ 46% of US; price level, 2025
GDP per capita: $14,898; 2025
Happiness: 6.4 / 10; World Happiness, 2025
Homicide rate: 4.5; per 100k, 2023
Road deaths: 14.1; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: High; EF EPI 575
Religion

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 Luis (-33.2914°, -66.3247°, elevation 729 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).

	Avg high (°C)	Avg low (°C)
1	27	17
2	27	17
3	27	16
4	27	16
5	27	16
6	27	16
7	27	16
8	27	16
9	27	16
10	27	16
11	26	16
12	26	16
13	26	16
14	26	16
15	26	15
16	26	15
17	26	15
18	25	15
19	25	15
20	25	15
21	25	15
22	25	14
23	25	14
24	25	14
25	24	14
26	24	14
27	24	14
28	24	14
29	24	14
30	24	13
31	24	13

	Clearer (%)	Cloudier (%)
1	76	24
2	77	23
3	77	23
4	76	24
5	76	24
6	75	25
7	75	25
8	73	27
9	72	28
10	72	28
11	72	28
12	70	30
13	70	30
14	70	30
15	70	30
16	70	30
17	70	30
18	70	30
19	70	30
20	70	30
21	70	30
22	70	30
23	69	31
24	69	31
25	69	31
26	68	32
27	68	32
28	67	33
29	67	33
30	67	33
31	67	33

	Rain chance (%)
1	33
2	33
3	33
4	34
5	34
6	34
7	35
8	35
9	35
10	35
11	35
12	35
13	35
14	34
15	34
16	33
17	33
18	33
19	32
20	32
21	31
22	31
23	30
24	30
25	30
26	30
27	30
28	30
29	30
30	30
31	29

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	39	31	25	5
2	39	31	25	5
3	38	31	26	5
4	38	31	26	5
5	38	31	26	5
6	38	31	26	5
7	38	31	26	5
8	39	30	26	5
9	39	30	26	5
10	40	30	25	5
11	40	30	25	5
12	41	30	24	5
13	42	29	23	5
14	44	29	22	5
15	45	29	21	5
16	47	29	20	4
17	48	29	19	4
18	50	29	18	4
19	51	29	17	3
20	52	29	16	3
21	54	28	15	3
22	56	28	14	2
23	56	28	14	2
24	58	27	13	2
25	59	27	13	1
26	61	26	12	1
27	61	26	12	1
28	62	26	11	1
29	63	25	11	1
30	65	24	10	1
31	65	24	10	1

	Avg high (°C)	Avg low (°C)
1	27	17
2	27	17
3	27	16
4	27	16
5	27	16
6	27	16
7	27	16
8	27	16
9	27	16
10	27	16
11	26	16
12	26	16
13	26	16
14	26	16
15	26	15
16	26	15
17	26	15
18	25	15
19	25	15
20	25	15
21	25	15
22	25	14
23	25	14
24	25	14
25	24	14
26	24	14
27	24	14
28	24	14
29	24	14
30	24	13
31	24	13

	Clearer (%)	Cloudier (%)
1	76	24
2	77	23
3	77	23
4	76	24
5	76	24
6	75	25
7	75	25
8	73	27
9	72	28
10	72	28
11	72	28
12	70	30
13	70	30
14	70	30
15	70	30
16	70	30
17	70	30
18	70	30
19	70	30
20	70	30
21	70	30
22	70	30
23	69	31
24	69	31
25	69	31
26	68	32
27	68	32
28	67	33
29	67	33
30	67	33
31	67	33

	Rain chance (%)
1	33
2	33
3	33
4	34
5	34
6	34
7	35
8	35
9	35
10	35
11	35
12	35
13	35
14	34
15	34
16	33
17	33
18	33
19	32
20	32
21	31
22	31
23	30
24	30
25	30
26	30
27	30
28	30
29	30
30	30
31	29

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	39	31	25	5
2	39	31	25	5
3	38	31	26	5
4	38	31	26	5
5	38	31	26	5
6	38	31	26	5
7	38	31	26	5
8	39	30	26	5
9	39	30	26	5
10	40	30	25	5
11	40	30	25	5
12	41	30	24	5
13	42	29	23	5
14	44	29	22	5
15	45	29	21	5
16	47	29	20	4
17	48	29	19	4
18	50	29	18	4
19	51	29	17	3
20	52	29	16	3
21	54	28	15	3
22	56	28	14	2
23	56	28	14	2
24	58	27	13	2
25	59	27	13	1
26	61	26	12	1
27	61	26	12	1
28	62	26	11	1
29	63	25	11	1
30	65	24	10	1
31	65	24	10	1

	Avg high (°C)	Avg low (°C)
1	27	17
2	27	17
3	27	16
4	27	16
5	27	16
6	27	16
7	27	16
8	27	16
9	27	16
10	27	16
11	26	16
12	26	16
13	26	16
14	26	16
15	26	15
16	26	15
17	26	15
18	25	15
19	25	15
20	25	15
21	25	15
22	25	14
23	25	14
24	25	14
25	24	14
26	24	14
27	24	14
28	24	14
29	24	14
30	24	13
31	24	13

	Clearer (%)	Cloudier (%)
1	76	24
2	77	23
3	77	23
4	76	24
5	76	24
6	75	25
7	75	25
8	73	27
9	72	28
10	72	28
11	72	28
12	70	30
13	70	30
14	70	30
15	70	30
16	70	30
17	70	30
18	70	30
19	70	30
20	70	30
21	70	30
22	70	30
23	69	31
24	69	31
25	69	31
26	68	32
27	68	32
28	67	33
29	67	33
30	67	33
31	67	33

	Rain chance (%)
1	33
2	33
3	33
4	34
5	34
6	34
7	35
8	35
9	35
10	35
11	35
12	35
13	35
14	34
15	34
16	33
17	33
18	33
19	32
20	32
21	31
22	31
23	30
24	30
25	30
26	30
27	30
28	30
29	30
30	30
31	29

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	39	31	25	5
2	39	31	25	5
3	38	31	26	5
4	38	31	26	5
5	38	31	26	5
6	38	31	26	5
7	38	31	26	5
8	39	30	26	5
9	39	30	26	5
10	40	30	25	5
11	40	30	25	5
12	41	30	24	5
13	42	29	23	5
14	44	29	22	5
15	45	29	21	5
16	47	29	20	4
17	48	29	19	4
18	50	29	18	4
19	51	29	17	3
20	52	29	16	3
21	54	28	15	3
22	56	28	14	2
23	56	28	14	2
24	58	27	13	2
25	59	27	13	1
26	61	26	12	1
27	61	26	12	1
28	62	26	11	1
29	63	25	11	1
30	65	24	10	1
31	65	24	10	1