Salta weather in May

In May, Salta sees average daytime highs of 16°C and overnight lows near 7°C, with 131 mm of precipitation across 15 wet days and about 10.8 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 17°C in the first days to 15°C by the end. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels dry.

Daylight stretches from about 11 h 06 min at the start of May to 10 h 36 min by month's end. Set against the rest of the year, May is Salta's 6th-clearest and 9th-windiest month. For the whole year in context, see Salta's year-round climate.

Daytime high: 16°; 10th warmest
Overnight low: 7°; 5th coldest
Precipitation: 131 mm; 15 wet days
Daylight: 10 h 48 min; 7:54 AM – 6:42 PM
Cloud cover: 63%; 6th clearest
Wind: 5 km/h; 9th windiest
Solar energy: 3.56 kWh/m²
Travel score: 4.5; out of 10

Salta is city located in the Lerma Valley, Argentina.

Founded: 1582

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

← April Salta year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 17°C in the first days to 15°C by the end.

A typical May day in Salta reaches about 16°C in the afternoon and slips back to 7°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 21°C. Set against its neighbours, May runs about 2°C cooler than April and about 1°C warmer than June.

	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)	17	17	17	17	17	17	17	17	17	17	17	16	16	16	16	16	16	16	16	16	16	16	16	16	16	15	15	15	15	15	15
Avg low (°C)	9	9	9	9	9	9	8	8	8	8	8	8	8	8	7	7	7	7	7	7	7	7	6	6	6	6	6	6	6	6	6

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

Salta weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	23° / 14°	339	26.2	0	13.4	4.2
Feb	22° / 14°	315	24.1	0	12.9	4.0
Mar	20° / 13°	341	26.1	0	12.2	3.9
Apr	18° / 11°	216	20	0.1	11.4	4.5
May	16° / 7°	131	15	0.3	10.8	4.5
Jun	15° / 5°	61	9.6	0.5	10.5	4.8
Jul	15° / 3°	44	7.8	0.8	10.6	5.1
Aug	17° / 5°	52	8.1	0.5	11.1	6.1
Sep	19° / 7°	80	10.9	0.2	11.8	6.2
Oct	20° / 10°	173	17.7	0.1	12.6	5.3
Nov	21° / 12°	235	19	0	13.2	5.0
Dec	22° / 14°	314	23.5	0	13.5	4.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 61%. 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 (%)	33	33	33	33	34	35	35	35	36	36	37	37	38	38	39	39	40	40	40	40	41	41	41	41	42	43	43	42	44	44	44
Cloudier (%)	67	67	67	67	66	65	65	65	64	64	63	63	62	62	61	61	60	60	60	60	59	59	59	59	58	57	57	58	56	56	56

	Clearer (%)	Cloudier (%)
1	33	67
2	33	67
3	33	67
4	33	67
5	34	66
6	35	65
7	35	65
8	35	65
9	36	64
10	36	64
11	37	63
12	37	63
13	38	62
14	38	62
15	39	61
16	39	61
17	40	60
18	40	60
19	40	60
20	40	60
21	41	59
22	41	59
23	41	59
24	41	59
25	42	58
26	43	57
27	43	57
28	42	58
29	44	56
30	44	56
31	44	56

Chance of precipitation in May

Any precipitation

Salta gets around 131 mm of rain and snow over 15 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 49% and peaks near 60% on the wettest days, and about 0 day brings snow. 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 (%)	60	59	58	58	57	57	56	56	55	54	54	53	52	51	51	50	49	48	47	46	45	44	43	42	41	40	39	39	38	37	37

	Rain chance (%)
1	60
2	59
3	58
4	58
5	57
6	57
7	56
8	56
9	55
10	54
11	54
12	53
13	52
14	51
15	51
16	50
17	49
18	48
19	47
20	46
21	45
22	44
23	43
24	42
25	41
26	40
27	39
28	39
29	38
30	37
31	37

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 94% 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 (%)	81	82	83	84	85	86	88	89	91	92	93	94	95	96	96	97	98	98	98	99	99	99	99	99	99	99	99	99	99	100	100
Comfortable (%)	18	17	16	15	14	13	11	10	9	8	7	6	5	4	4	3	2	2	2	1	1	1	1	1	1	1	1	1	1	0	0
Humid (%)	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)
1	81	18	1
2	82	17	1
3	83	16	1
4	84	15	1
5	85	14	1
6	86	13	1
7	88	11	1
8	89	10	1
9	91	9	0
10	92	8	0
11	93	7	0
12	94	6	0
13	95	5	0
14	96	4	0
15	96	4	0
16	97	3	0
17	98	2	0
18	98	2	0
19	98	2	0
20	99	1	0
21	99	1	0
22	99	1	0
23	99	1	0
24	99	1	0
25	99	1	0
26	99	1	0
27	99	1	0
28	99	1	0
29	99	1	0
30	100	0	0
31	100	0	0

Wind in May

Winds average 5 km/h in May.

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

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 06 min at the start of May to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over May. Sunrise moves from 7:46 AM to 8:01 AM, and sunset from 6:51 PM to 6:37 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)	11.1	11.1	11.0	11.0	11.0	11.0	11.0	10.9	10.9	10.9	10.9	10.9	10.9	10.8	10.8	10.8	10.8	10.8	10.7	10.7	10.7	10.7	10.7	10.7	10.7	10.6	10.6	10.6	10.6	10.6	10.6
Sunrise (AM)	7:46	7:47	7:47	7:48	7:48	7:49	7:49	7:50	7:50	7:51	7:51	7:52	7:52	7:53	7:53	7:54	7:54	7:55	7:56	7:56	7:57	7:57	7:58	7:58	7:59	7:59	8:00	8:00	8:01	8:01	8:01
Sunset (PM)	6:51	6:51	6:50	6:49	6:48	6:48	6:47	6:46	6:46	6:45	6:45	6:44	6:43	6:43	6:42	6:42	6:41	6:41	6:40	6:40	6:40	6:39	6:39	6:39	6:38	6:38	6:38	6:37	6:37	6:37	6:37

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.1	7:46	6:51
2	11.1	7:47	6:51
3	11.0	7:47	6:50
4	11.0	7:48	6:49
5	11.0	7:48	6:48
6	11.0	7:49	6:48
7	11.0	7:49	6:47
8	10.9	7:50	6:46
9	10.9	7:50	6:46
10	10.9	7:51	6:45
11	10.9	7:51	6:45
12	10.9	7:52	6:44
13	10.9	7:52	6:43
14	10.8	7:53	6:43
15	10.8	7:53	6:42
16	10.8	7:54	6:42
17	10.8	7:54	6:41
18	10.8	7:55	6:41
19	10.7	7:56	6:40
20	10.7	7:56	6:40
21	10.7	7:57	6:40
22	10.7	7:57	6:39
23	10.7	7:58	6:39
24	10.7	7:58	6:39
25	10.7	7:59	6:38
26	10.6	7:59	6:38
27	10.6	8:00	6:38
28	10.6	8:00	6:37
29	10.6	8:01	6:37
30	10.6	8:01	6:37
31	10.6	8:01	6:37

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.56 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.56 kWh/m² to a high of 6.08 kWh/m² in November across the year — May's 3.56 kWh/m² sits near the bottom.

	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)	3.7	3.7	3.7	3.7	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	3.7	Moderate
2	3.7	Moderate
3	3.7	Moderate
4	3.7	Moderate
5	3.6	Moderate
6	3.6	Moderate
7	3.6	Moderate
8	3.6	Moderate
9	3.6	Moderate
10	3.6	Moderate
11	3.6	Moderate
12	3.6	Moderate
13	3.6	Moderate
14	3.5	Moderate
15	3.5	Moderate
16	3.5	Moderate
17	3.5	Moderate
18	3.5	Moderate
19	3.5	Moderate
20	3.5	Moderate
21	3.5	Moderate
22	3.5	Moderate
23	3.5	Moderate
24	3.5	Moderate
25	3.5	Moderate
26	3.5	Moderate
27	3.5	Moderate
28	3.5	Moderate
29	3.5	Moderate
30	3.5	Moderate
31	3.5	Moderate

Planning a trip in May

Hazard calendar for Salta

In seasonPeak

None of Salta's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Salta'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 May a good time to visit Salta?

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

4.5

Sightseeing

7th-best month of the year

0.7

Beach & pool

10th-best month of the year

May is a reasonable time to visit Salta for sightseeing.

What to pack for Salta in May

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

In May, Salta sees daytime highs around 16°C and nights near 7°C. Pack rain gear. Worth having: a warm layer. About 15 days see rain.

rain geara warm layer

UV index in Salta in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Salta peaks around January 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (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)	16	16	14	9	7	6	6	8	10	13	15	16
Level	Extreme	Extreme	Extreme	Very high	Very high	High	High	Very high	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	16	Extreme
Feb	16	Extreme
Mar	14	Extreme
Apr	9	Very high
May	7	Very high
Jun	6	High
Jul	6	High
Aug	8	Very high
Sep	10	Extreme
Oct	13	Extreme
Nov	15	Extreme
Dec	16	Extreme

Location & terrain

Where is Salta?

Salta sits at 24.8°S, 65.4°W, 1,054 m above sea level, in Argentina. The nearest listed city is San Lorenzo, 10 km away.

Topography around Salta

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

Within 3 km, the terrain around Salta has significant variations in elevation — a maximum elevation change of 252 m around an average of 1,182 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,266 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,198 m.

The land around Salta is covered by artificial surfaces (78%) within 3 km, trees (52%) and cropland (20%) within 16 km, and trees (46%) within 80 km.

3 km

252 m

artificial surfaces 78%

16 km

1,266 m

trees 52%

80 km

5,198 m

trees 46%

treesshrubsgrasslandcroplandartificial surfacesbare terrain

← April Salta year-round climate June →Best places to visit in May

May weather nearby: San Lorenzo 10 km · San José de los Cerrillos 12 km · Rosario de Lerma 26 km · General Güemes 40 km · Palpalá 64 km · San Salvador de Jujuy 69 km · San Pedro de Jujuy 85 km · San José de Metán 89 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 Salta (-24.8065°, -65.42°, elevation 1,054 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	17	9
2	17	9
3	17	9
4	17	9
5	17	9
6	17	9
7	17	8
8	17	8
9	17	8
10	17	8
11	17	8
12	16	8
13	16	8
14	16	8
15	16	7
16	16	7
17	16	7
18	16	7
19	16	7
20	16	7
21	16	7
22	16	7
23	16	6
24	16	6
25	16	6
26	15	6
27	15	6
28	15	6
29	15	6
30	15	6
31	15	6

	Clearer (%)	Cloudier (%)
1	33	67
2	33	67
3	33	67
4	33	67
5	34	66
6	35	65
7	35	65
8	35	65
9	36	64
10	36	64
11	37	63
12	37	63
13	38	62
14	38	62
15	39	61
16	39	61
17	40	60
18	40	60
19	40	60
20	40	60
21	41	59
22	41	59
23	41	59
24	41	59
25	42	58
26	43	57
27	43	57
28	42	58
29	44	56
30	44	56
31	44	56

	Rain chance (%)
1	60
2	59
3	58
4	58
5	57
6	57
7	56
8	56
9	55
10	54
11	54
12	53
13	52
14	51
15	51
16	50
17	49
18	48
19	47
20	46
21	45
22	44
23	43
24	42
25	41
26	40
27	39
28	39
29	38
30	37
31	37

	Dry (%)	Comfortable (%)	Humid (%)
1	81	18	1
2	82	17	1
3	83	16	1
4	84	15	1
5	85	14	1
6	86	13	1
7	88	11	1
8	89	10	1
9	91	9	0
10	92	8	0
11	93	7	0
12	94	6	0
13	95	5	0
14	96	4	0
15	96	4	0
16	97	3	0
17	98	2	0
18	98	2	0
19	98	2	0
20	99	1	0
21	99	1	0
22	99	1	0
23	99	1	0
24	99	1	0
25	99	1	0
26	99	1	0
27	99	1	0
28	99	1	0
29	99	1	0
30	100	0	0
31	100	0	0

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

	Clearer (%)	Cloudier (%)
1	33	67
2	33	67
3	33	67
4	33	67
5	34	66
6	35	65
7	35	65
8	35	65
9	36	64
10	36	64
11	37	63
12	37	63
13	38	62
14	38	62
15	39	61
16	39	61
17	40	60
18	40	60
19	40	60
20	40	60
21	41	59
22	41	59
23	41	59
24	41	59
25	42	58
26	43	57
27	43	57
28	42	58
29	44	56
30	44	56
31	44	56

	Rain chance (%)
1	60
2	59
3	58
4	58
5	57
6	57
7	56
8	56
9	55
10	54
11	54
12	53
13	52
14	51
15	51
16	50
17	49
18	48
19	47
20	46
21	45
22	44
23	43
24	42
25	41
26	40
27	39
28	39
29	38
30	37
31	37

	Dry (%)	Comfortable (%)	Humid (%)
1	81	18	1
2	82	17	1
3	83	16	1
4	84	15	1
5	85	14	1
6	86	13	1
7	88	11	1
8	89	10	1
9	91	9	0
10	92	8	0
11	93	7	0
12	94	6	0
13	95	5	0
14	96	4	0
15	96	4	0
16	97	3	0
17	98	2	0
18	98	2	0
19	98	2	0
20	99	1	0
21	99	1	0
22	99	1	0
23	99	1	0
24	99	1	0
25	99	1	0
26	99	1	0
27	99	1	0
28	99	1	0
29	99	1	0
30	100	0	0
31	100	0	0

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

	Clearer (%)	Cloudier (%)
1	33	67
2	33	67
3	33	67
4	33	67
5	34	66
6	35	65
7	35	65
8	35	65
9	36	64
10	36	64
11	37	63
12	37	63
13	38	62
14	38	62
15	39	61
16	39	61
17	40	60
18	40	60
19	40	60
20	40	60
21	41	59
22	41	59
23	41	59
24	41	59
25	42	58
26	43	57
27	43	57
28	42	58
29	44	56
30	44	56
31	44	56

	Rain chance (%)
1	60
2	59
3	58
4	58
5	57
6	57
7	56
8	56
9	55
10	54
11	54
12	53
13	52
14	51
15	51
16	50
17	49
18	48
19	47
20	46
21	45
22	44
23	43
24	42
25	41
26	40
27	39
28	39
29	38
30	37
31	37

	Dry (%)	Comfortable (%)	Humid (%)
1	81	18	1
2	82	17	1
3	83	16	1
4	84	15	1
5	85	14	1
6	86	13	1
7	88	11	1
8	89	10	1
9	91	9	0
10	92	8	0
11	93	7	0
12	94	6	0
13	95	5	0
14	96	4	0
15	96	4	0
16	97	3	0
17	98	2	0
18	98	2	0
19	98	2	0
20	99	1	0
21	99	1	0
22	99	1	0
23	99	1	0
24	99	1	0
25	99	1	0
26	99	1	0
27	99	1	0
28	99	1	0
29	99	1	0
30	100	0	0
31	100	0	0