San Antonio weather in March

In March, San Antonio sees average daytime highs of 22°C and overnight lows near 15°C, with 41 mm of rain across 10.2 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 10% of the time in March, and the air most often feels comfortable.

Daylight stretches from about 12 h 24 min at the start of March to 11 h 54 min by month's end. Set against the rest of the year, March is San Antonio's 10th-clearest and 6th-windiest month. For the whole year in context, see San Antonio's year-round climate.

Daytime high: 22°; 10th warmest
Overnight low: 15°; 12th coldest
Rainfall: 41 mm; 10.2 wet days
Daylight: 12 h 06 min; 5:50 AM – 5:57 PM
Cloud cover: 74%; 10th clearest
Wind: 6 km/h; 6th windiest
Solar energy: 6.23 kWh/m²
Travel score: 6.3; out of 10

← February San Antonio 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

Day-to-day highs hold fairly steady near 22°C through the month.

A typical March day in San Antonio reaches about 22°C in the afternoon and slips back to 15°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 24°C. Set against its neighbours, March runs on par with February and about 1°C cooler 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)	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22
Avg low (°C)	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15

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

San Antonio weather by month

How March compares with the rest of the year at a glance. March is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	22° / 15°	52	12	12.9	6.0
Feb	22° / 15°	63	13.2	12.6	5.6
Mar	22° / 15°	41	10.2	12.1	6.3
Apr	23° / 15°	9	2.1	11.6	8.2
May	23° / 14°	1	0.2	11.2	9.1
Jun	22° / 13°	0	0.1	11	9.0
Jul	22° / 13°	0	0.2	11.1	9.0
Aug	22° / 13°	1	0.3	11.4	9.1
Sep	23° / 14°	1	0.2	11.9	9.2
Oct	23° / 15°	1	0.2	12.4	8.8
Nov	23° / 15°	2	0.6	12.8	8.5
Dec	23° / 15°	13	3.3	13	7.6

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% 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 78%. Skies tend to open up as the month goes on.

	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 (%)	14	14	14	14	15	15	15	17	17	17	17	19	19	19	19	20	22	22	22	24	25	26	27	28	29	31	31	33	34	35	36
Cloudier (%)	86	86	86	86	85	85	85	83	83	83	83	81	81	81	81	80	78	78	78	76	75	74	73	72	71	69	69	67	66	65	64

	Clearer (%)	Cloudier (%)
1	14	86
2	14	86
3	14	86
4	14	86
5	15	85
6	15	85
7	15	85
8	17	83
9	17	83
10	17	83
11	17	83
12	19	81
13	19	81
14	19	81
15	19	81
16	20	80
17	22	78
18	22	78
19	22	78
20	24	76
21	25	75
22	26	74
23	27	73
24	28	72
25	29	71
26	31	69
27	31	69
28	33	67
29	34	66
30	35	65
31	36	64

Chance of precipitation in March

Any precipitation

San Antonio gets around 41 mm of rain over 10.2 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 44% on the wettest days. The odds ease toward the end of the month.

	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 (%)	44	43	43	42	42	41	41	41	40	40	39	39	38	37	37	36	34	33	32	31	29	28	27	25	24	22	21	20	18	17	16

	Rain chance (%)
1	44
2	43
3	43
4	42
5	42
6	41
7	41
8	41
9	40
10	40
11	39
12	39
13	38
14	37
15	37
16	36
17	34
18	33
19	32
20	31
21	29
22	28
23	27
24	25
25	24
26	22
27	21
28	20
29	18
30	17
31	16

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the comfortable band about 57% 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 (%)	34	34	34	33	33	33	33	33	34	34	35	36	37	38	39	41	42	43	44	45	46	47	48	49	50	51	52	54	55	56	58
Comfortable (%)	62	63	63	64	64	64	64	65	64	64	63	62	62	61	60	58	57	56	55	54	53	52	51	50	50	49	48	46	45	44	42
Humid (%)	4	3	3	3	3	3	3	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)
1	34	62	4
2	34	63	3
3	34	63	3
4	33	64	3
5	33	64	3
6	33	64	3
7	33	64	3
8	33	65	2
9	34	64	2
10	34	64	2
11	35	63	2
12	36	62	2
13	37	62	1
14	38	61	1
15	39	60	1
16	41	58	1
17	42	57	1
18	43	56	1
19	44	55	1
20	45	54	1
21	46	53	1
22	47	52	1
23	48	51	1
24	49	50	1
25	50	50	0
26	51	49	0
27	52	48	0
28	54	46	0
29	55	45	0
30	56	44	0
31	58	42	0

Wind in March

Winds average 6 km/h in March.

Across March, daily wind ranges from about 6 km/h on the calmest days to 6 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)	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6
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	6	calm
2	6	calm
3	6	calm
4	6	calm
5	6	calm
6	6	calm
7	6	calm
8	6	calm
9	6	calm
10	6	calm
11	6	calm
12	6	calm
13	6	calm
14	6	calm
15	6	calm
16	6	calm
17	6	calm
18	6	calm
19	6	calm
20	6	calm
21	6	calm
22	6	calm
23	6	calm
24	6	calm
25	6	calm
26	6	calm
27	6	calm
28	6	calm
29	6	calm
30	6	calm
31	6	calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 24 min at the start of March to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over March. Sunrise moves from 5:46 AM to 5:53 AM, and sunset from 6:08 PM to 5:45 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)	12.4	12.3	12.3	12.3	12.3	12.3	12.3	12.3	12.2	12.2	12.2	12.2	12.2	12.2	12.1	12.1	12.1	12.1	12.1	12.1	12.0	12.0	12.0	12.0	12.0	12.0	11.9	11.9	11.9	11.9	11.9
Sunrise (AM)	5:46	5:46	5:47	5:47	5:47	5:47	5:48	5:48	5:48	5:48	5:49	5:49	5:49	5:49	5:50	5:50	5:50	5:50	5:50	5:51	5:51	5:51	5:51	5:51	5:51	5:52	5:52	5:52	5:52	5:52	5:53
Sunset (PM)	6:08	6:07	6:07	6:06	6:05	6:04	6:04	6:03	6:02	6:02	6:01	6:00	5:59	5:59	5:58	5:57	5:56	5:55	5:55	5:54	5:53	5:52	5:51	5:51	5:50	5:49	5:48	5:47	5:46	5:46	5:45

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.4	5:46	6:08
2	12.3	5:46	6:07
3	12.3	5:47	6:07
4	12.3	5:47	6:06
5	12.3	5:47	6:05
6	12.3	5:47	6:04
7	12.3	5:48	6:04
8	12.3	5:48	6:03
9	12.2	5:48	6:02
10	12.2	5:48	6:02
11	12.2	5:49	6:01
12	12.2	5:49	6:00
13	12.2	5:49	5:59
14	12.2	5:49	5:59
15	12.1	5:50	5:58
16	12.1	5:50	5:57
17	12.1	5:50	5:56
18	12.1	5:50	5:55
19	12.1	5:50	5:55
20	12.1	5:51	5:54
21	12.0	5:51	5:53
22	12.0	5:51	5:52
23	12.0	5:51	5:51
24	12.0	5:51	5:51
25	12.0	5:51	5:50
26	12.0	5:52	5:49
27	11.9	5:52	5:48
28	11.9	5:52	5:47
29	11.9	5:52	5:46
30	11.9	5:52	5:46
31	11.9	5:53	5:45

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 6.23 kWh/m².

For context, solar energy here swings from a low near 5.14 kWh/m² to a high of 8.31 kWh/m² in November across the year — March's 6.23 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)	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3	6.3
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	6.2	Intense
2	6.2	Intense
3	6.2	Intense
4	6.2	Intense
5	6.2	Intense
6	6.2	Intense
7	6.2	Intense
8	6.2	Intense
9	6.2	Intense
10	6.2	Intense
11	6.2	Intense
12	6.2	Intense
13	6.2	Intense
14	6.2	Intense
15	6.2	Intense
16	6.2	Intense
17	6.2	Intense
18	6.2	Intense
19	6.2	Intense
20	6.2	Intense
21	6.2	Intense
22	6.3	Intense
23	6.3	Intense
24	6.3	Intense
25	6.3	Intense
26	6.3	Intense
27	6.3	Intense
28	6.3	Intense
29	6.3	Intense
30	6.3	Intense
31	6.3	Intense

Planning a trip in March

Is March a good time to visit San Antonio?

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

6.3

Sightseeing

10th-best month of the year

4.4

Beach & pool

10th-best month of the year

March is a reasonable time to visit San Antonio for sightseeing.

What to pack for San Antonio in March

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

In March, San Antonio sees daytime highs around 22°C and nights near 15°C. Pack sun protection. Worth having: rain gear. About 10 days see rain.

sun protectionrain gear

Sea temperature near San Antonio in March

The nearest coast averages about 21°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 51 km away) is warmest in February at about 22°C and coldest in August near 17°C.

It's comfortable for a long swim from Dec 3 to Apr 19 — about 4.5 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	22	22	21	20	19	18	17	17	17	18	19	21
Comfort	Refreshing	Refreshing	Refreshing	Refreshing	Cool	Cool	Cool	Cool	Cool	Cool	Cool	Refreshing

	Sea temperature (°C)	Comfort
Jan	22	Refreshing
Feb	22	Refreshing
Mar	21	Refreshing
Apr	20	Refreshing
May	19	Cool
Jun	18	Cool
Jul	17	Cool
Aug	17	Cool
Sep	17	Cool
Oct	18	Cool
Nov	19	Cool
Dec	21	Refreshing

UV index in San Antonio in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 15 (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 Antonio peaks around February 8 at about 18 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 9 (very high).

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)	18	18	15	13	10	9	9	11	13	16	15	16
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	18	Extreme
Feb	18	Extreme
Mar	15	Extreme
Apr	13	Extreme
May	10	Extreme
Jun	9	Very high
Jul	9	Very high
Aug	11	Extreme
Sep	13	Extreme
Oct	16	Extreme
Nov	15	Extreme
Dec	16	Extreme

Location & terrain

Where is San Antonio?

San Antonio sits at 17.2°S, 70.9°W, 1,455 m above sea level, in Peru. The nearest listed city is Moquegua, 2.0 km away.

Topography around San Antonio

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

Within 3 km, the terrain around San Antonio has significant variations in elevation — a maximum elevation change of 466 m around an average of 1,486 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,183 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,786 m.

The land around San Antonio is covered by bare terrain (64%) within 3 km, bare terrain (90%) within 16 km, and bare terrain (76%) within 80 km.

3 km

466 m

bare terrain 64%

16 km

2,183 m

bare terrain 90%

80 km

5,786 m

bare terrain 76%

shrubsgrasslandcroplandartificial surfacesbare terrainwater

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

March weather nearby: Moquegua 2.0 km · Ilo 64 km · Ciudad Satelite 108 km · Jacobo Hunter 109 km · Arequipa 112 km · Tacna 114 km · Selva Alegre 114 km · Mollendo 118 km

Peru travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type A / B / C; 220 V · 60 Hz
Prices: ≈ 51% of US; price level, 2025
GDP per capita: $9,684; 2025
Happiness: 6.0 / 10; World Happiness, 2025
Safe drinking water: 49%; of population, 2024
Homicide rate: 8.6; per 100k, 2021
Road deaths: 13.6; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Moderate; EF EPI 519
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 Antonio (-17.2172°, -70.9259°, elevation 1,455 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. 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	22	15
2	22	15
3	22	15
4	22	15
5	22	15
6	22	15
7	22	15
8	22	15
9	22	15
10	22	15
11	22	15
12	22	15
13	22	15
14	22	15
15	22	15
16	22	15
17	22	15
18	22	15
19	22	15
20	22	15
21	22	15
22	22	15
23	22	15
24	22	15
25	22	15
26	22	15
27	22	15
28	22	15
29	22	15
30	22	15
31	22	15

	Clearer (%)	Cloudier (%)
1	14	86
2	14	86
3	14	86
4	14	86
5	15	85
6	15	85
7	15	85
8	17	83
9	17	83
10	17	83
11	17	83
12	19	81
13	19	81
14	19	81
15	19	81
16	20	80
17	22	78
18	22	78
19	22	78
20	24	76
21	25	75
22	26	74
23	27	73
24	28	72
25	29	71
26	31	69
27	31	69
28	33	67
29	34	66
30	35	65
31	36	64

	Rain chance (%)
1	44
2	43
3	43
4	42
5	42
6	41
7	41
8	41
9	40
10	40
11	39
12	39
13	38
14	37
15	37
16	36
17	34
18	33
19	32
20	31
21	29
22	28
23	27
24	25
25	24
26	22
27	21
28	20
29	18
30	17
31	16

	Dry (%)	Comfortable (%)	Humid (%)
1	34	62	4
2	34	63	3
3	34	63	3
4	33	64	3
5	33	64	3
6	33	64	3
7	33	64	3
8	33	65	2
9	34	64	2
10	34	64	2
11	35	63	2
12	36	62	2
13	37	62	1
14	38	61	1
15	39	60	1
16	41	58	1
17	42	57	1
18	43	56	1
19	44	55	1
20	45	54	1
21	46	53	1
22	47	52	1
23	48	51	1
24	49	50	1
25	50	50	0
26	51	49	0
27	52	48	0
28	54	46	0
29	55	45	0
30	56	44	0
31	58	42	0

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

	Clearer (%)	Cloudier (%)
1	14	86
2	14	86
3	14	86
4	14	86
5	15	85
6	15	85
7	15	85
8	17	83
9	17	83
10	17	83
11	17	83
12	19	81
13	19	81
14	19	81
15	19	81
16	20	80
17	22	78
18	22	78
19	22	78
20	24	76
21	25	75
22	26	74
23	27	73
24	28	72
25	29	71
26	31	69
27	31	69
28	33	67
29	34	66
30	35	65
31	36	64

	Rain chance (%)
1	44
2	43
3	43
4	42
5	42
6	41
7	41
8	41
9	40
10	40
11	39
12	39
13	38
14	37
15	37
16	36
17	34
18	33
19	32
20	31
21	29
22	28
23	27
24	25
25	24
26	22
27	21
28	20
29	18
30	17
31	16

	Dry (%)	Comfortable (%)	Humid (%)
1	34	62	4
2	34	63	3
3	34	63	3
4	33	64	3
5	33	64	3
6	33	64	3
7	33	64	3
8	33	65	2
9	34	64	2
10	34	64	2
11	35	63	2
12	36	62	2
13	37	62	1
14	38	61	1
15	39	60	1
16	41	58	1
17	42	57	1
18	43	56	1
19	44	55	1
20	45	54	1
21	46	53	1
22	47	52	1
23	48	51	1
24	49	50	1
25	50	50	0
26	51	49	0
27	52	48	0
28	54	46	0
29	55	45	0
30	56	44	0
31	58	42	0

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

	Clearer (%)	Cloudier (%)
1	14	86
2	14	86
3	14	86
4	14	86
5	15	85
6	15	85
7	15	85
8	17	83
9	17	83
10	17	83
11	17	83
12	19	81
13	19	81
14	19	81
15	19	81
16	20	80
17	22	78
18	22	78
19	22	78
20	24	76
21	25	75
22	26	74
23	27	73
24	28	72
25	29	71
26	31	69
27	31	69
28	33	67
29	34	66
30	35	65
31	36	64

	Rain chance (%)
1	44
2	43
3	43
4	42
5	42
6	41
7	41
8	41
9	40
10	40
11	39
12	39
13	38
14	37
15	37
16	36
17	34
18	33
19	32
20	31
21	29
22	28
23	27
24	25
25	24
26	22
27	21
28	20
29	18
30	17
31	16

	Dry (%)	Comfortable (%)	Humid (%)
1	34	62	4
2	34	63	3
3	34	63	3
4	33	64	3
5	33	64	3
6	33	64	3
7	33	64	3
8	33	65	2
9	34	64	2
10	34	64	2
11	35	63	2
12	36	62	2
13	37	62	1
14	38	61	1
15	39	60	1
16	41	58	1
17	42	57	1
18	43	56	1
19	44	55	1
20	45	54	1
21	46	53	1
22	47	52	1
23	48	51	1
24	49	50	1
25	50	50	0
26	51	49	0
27	52	48	0
28	54	46	0
29	55	45	0
30	56	44	0
31	58	42	0