Río Segundo weather in May

In May, Río Segundo sees average daytime highs of 20°C and overnight lows near 9°C, with 29 mm of rain across 4.3 wet days and about 10.4 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 18°C by the end. The sky is clear or mostly clear about 43% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 48 min at the start of May to 10 h 06 min by month's end. Set against the rest of the year, May is Río Segundo's 12th-clearest and 7th-windiest month. For the whole year in context, see Río Segundo's year-round climate.

Daytime high: 20°; 9th warmest
Overnight low: 9°; 5th coldest
Rainfall: 29 mm; 4.3 wet days
Daylight: 10 h 24 min; 8:00 AM – 6:24 PM
Cloud cover: 50%; 12th clearest
Wind: 10 km/h; 7th windiest
Solar energy: 2.94 kWh/m²
Travel score: 7.2; out of 10

Río Segundo is human settlement in Argentina.

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

← April Río Segundo 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 21°C in the first days to 18°C by the end.

A typical May day in Río Segundo reaches about 20°C in the afternoon and slips back to 9°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 25°C. Set against its neighbours, May runs about 4°C cooler than April and about 3°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)	22	22	21	21	21	21	21	21	21	20	20	20	20	20	20	20	19	19	19	19	19	19	19	19	18	18	18	18	18	18	18
Avg low (°C)	11	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10	9	9	9	9	9	9	9	8	8	8	8	8	8	7	7

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

Río Segundo weather by month

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

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 19°	108	10.1	13.8	5.3
Feb	28° / 18°	89	9.8	13.2	6.3
Mar	26° / 16°	89	9.2	12.2	7.0
Apr	23° / 13°	61	7	11.2	7.6
May	20° / 9°	29	4.3	10.4	7.2
Jun	17° / 6°	15	3	10	6.5
Jul	16° / 5°	12	2.5	10.1	6.5
Aug	19° / 7°	15	2.4	10.8	7.7
Sep	22° / 9°	30	4.4	11.8	8.0
Oct	25° / 13°	68	8.2	12.8	7.4
Nov	28° / 16°	83	9.7	13.6	6.5
Dec	30° / 18°	102	10.8	14	5.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 43%.

	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 (%)	62	60	60	60	60	60	59	59	59	58	58	57	57	56	56	55	55	55	55	55	54	54	54	55	55	55	57	57	58	59	59
Cloudier (%)	38	40	40	40	40	40	41	41	41	42	42	43	43	44	44	45	45	45	45	45	46	46	46	45	45	45	43	43	42	41	41

	Clearer (%)	Cloudier (%)
1	62	38
2	60	40
3	60	40
4	60	40
5	60	40
6	60	40
7	59	41
8	59	41
9	59	41
10	58	42
11	58	42
12	57	43
13	57	43
14	56	44
15	56	44
16	55	45
17	55	45
18	55	45
19	55	45
20	55	45
21	54	46
22	54	46
23	54	46
24	55	45
25	55	45
26	55	45
27	57	43
28	57	43
29	58	42
30	59	41
31	59	41

Chance of precipitation in May

Any precipitation

Río Segundo gets around 29 mm of rain over 4.3 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 14% and peaks near 19% 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 (%)	19	18	18	17	17	17	16	16	16	16	15	15	15	15	15	15	14	14	14	13	13	13	12	12	12	11	11	11	11	10	10

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

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 78% 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 (%)	64	65	66	67	67	68	70	71	72	74	74	76	76	78	79	79	80	81	81	83	83	84	84	85	86	86	87	89	89	90	90
Comfortable (%)	19	19	18	18	18	18	17	17	17	16	16	15	15	14	13	13	12	11	11	10	10	9	9	8	8	8	7	7	7	7	7
Humid (%)	14	14	14	13	13	12	11	11	10	9	9	8	8	7	7	7	7	7	7	6	6	6	6	6	5	5	5	4	4	3	3
Muggy (%)	3	2	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	64	19	14	3
2	65	19	14	2
3	66	18	14	2
4	67	18	13	2
5	67	18	13	2
6	68	18	12	2
7	70	17	11	2
8	71	17	11	1
9	72	17	10	1
10	74	16	9	1
11	74	16	9	1
12	76	15	8	1
13	76	15	8	1
14	78	14	7	1
15	79	13	7	1
16	79	13	7	1
17	80	12	7	1
18	81	11	7	1
19	81	11	7	1
20	83	10	6	1
21	83	10	6	1
22	84	9	6	1
23	84	9	6	1
24	85	8	6	1
25	86	8	5	1
26	86	8	5	1
27	87	7	5	1
28	89	7	4	0
29	89	7	4	0
30	90	7	3	0
31	90	7	3	0

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 10 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)	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	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	10	calm
2	10	calm
3	10	calm
4	10	calm
5	10	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 May

DaylightNight

Daylight runs from about 10 h 48 min at the start of May to 10 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over May. Sunrise moves from 7:50 AM to 8:10 AM, and sunset from 6:36 PM to 6:16 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)	10.8	10.7	10.7	10.7	10.7	10.6	10.6	10.6	10.6	10.5	10.5	10.5	10.5	10.4	10.4	10.4	10.4	10.3	10.3	10.3	10.3	10.3	10.2	10.2	10.2	10.2	10.2	10.2	10.1	10.1	10.1
Sunrise (AM)	7:50	7:50	7:51	7:52	7:52	7:53	7:54	7:55	7:55	7:56	7:57	7:57	7:58	7:59	7:59	8:00	8:01	8:02	8:02	8:03	8:04	8:04	8:05	8:06	8:06	8:07	8:07	8:08	8:09	8:09	8:10
Sunset (PM)	6:36	6:35	6:34	6:33	6:32	6:31	6:31	6:30	6:29	6:28	6:27	6:27	6:26	6:25	6:24	6:24	6:23	6:22	6:22	6:21	6:21	6:20	6:20	6:19	6:19	6:18	6:18	6:17	6:17	6:17	6:16

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.8	7:50	6:36
2	10.7	7:50	6:35
3	10.7	7:51	6:34
4	10.7	7:52	6:33
5	10.7	7:52	6:32
6	10.6	7:53	6:31
7	10.6	7:54	6:31
8	10.6	7:55	6:30
9	10.6	7:55	6:29
10	10.5	7:56	6:28
11	10.5	7:57	6:27
12	10.5	7:57	6:27
13	10.5	7:58	6:26
14	10.4	7:59	6:25
15	10.4	7:59	6:24
16	10.4	8:00	6:24
17	10.4	8:01	6:23
18	10.3	8:02	6:22
19	10.3	8:02	6:22
20	10.3	8:03	6:21
21	10.3	8:04	6:21
22	10.3	8:04	6:20
23	10.2	8:05	6:20
24	10.2	8:06	6:19
25	10.2	8:06	6:19
26	10.2	8:07	6:18
27	10.2	8:07	6:18
28	10.2	8:08	6:17
29	10.1	8:09	6:17
30	10.1	8:09	6:17
31	10.1	8:10	6:16

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.94 kWh/m².

For context, solar energy here swings from a low near 2.78 kWh/m² to a high of 7.03 kWh/m² in December across the year — May's 2.94 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)	3.4	3.3	3.3	3.3	3.2	3.2	3.2	3.1	3.1	3.1	3.0	3.0	3.0	3.0	2.9	2.9	2.9	2.9	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8	2.8
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	3.4	Moderate
2	3.3	Moderate
3	3.3	Moderate
4	3.3	Moderate
5	3.2	Moderate
6	3.2	Moderate
7	3.2	Moderate
8	3.1	Moderate
9	3.1	Moderate
10	3.1	Moderate
11	3.0	Moderate
12	3.0	Moderate
13	3.0	Moderate
14	3.0	Moderate
15	2.9	Moderate
16	2.9	Moderate
17	2.9	Moderate
18	2.9	Moderate
19	2.8	Moderate
20	2.8	Moderate
21	2.8	Moderate
22	2.8	Moderate
23	2.8	Moderate
24	2.8	Moderate
25	2.8	Moderate
26	2.8	Moderate
27	2.8	Moderate
28	2.8	Moderate
29	2.8	Moderate
30	2.8	Moderate
31	2.8	Moderate

Planning a trip in May

Hazard calendar for Río Segundo

In seasonPeak

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

Río Segundo'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 Río Segundo?

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

7.2

Sightseeing

5th-best month of the year

3.5

Beach & pool

10th-best month of the year

May is one of the better times to visit Río Segundo for general sightseeing.

What to pack for Río Segundo in May

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

In May, Río Segundo sees daytime highs around 20°C and nights near 9°C. Little to plan around — just the basics. About 4 days see rain.

UV index in Río Segundo in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Río Segundo peaks around January 19 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	11	6	4	3	4	5	7	10	12	12
Level	Extreme	Extreme	Extreme	High	Moderate	Moderate	Moderate	Moderate	High	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	13	Extreme
Mar	11	Extreme
Apr	6	High
May	4	Moderate
Jun	3	Moderate
Jul	4	Moderate
Aug	5	Moderate
Sep	7	High
Oct	10	Extreme
Nov	12	Extreme
Dec	12	Extreme

Location & terrain

Where is Río Segundo?

Río Segundo sits at 31.7°S, 63.9°W, 343 m above sea level, in Argentina. The nearest listed city is Pilar, 4.0 km away.

Topography around Río Segundo

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

Within 3 km, the terrain around Río Segundo has only modest variations in elevation — a maximum elevation change of 28 m around an average of 339 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 96 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,998 m.

The land around Río Segundo is covered by cropland (41%) and grassland (29%) within 3 km, cropland (91%) within 16 km, and cropland (74%) within 80 km.

3 km

28 m

cropland 41%

16 km

96 m

cropland 91%

80 km

1,998 m

cropland 74%

treesshrubsgrasslandcroplandartificial surfacesbare terrain

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

May weather nearby: Pilar 4.0 km · Villa del Rosario 37 km · Cordoba 38 km · Alta Gracia 49 km · La Calera 53 km · Villa Allende 54 km · Unquillo 60 km · Villa Carlos Paz 61 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 Río Segundo (-31.6501°, -63.9117°, elevation 343 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	22	11
2	22	11
3	21	11
4	21	11
5	21	11
6	21	11
7	21	11
8	21	11
9	21	11
10	20	10
11	20	10
12	20	10
13	20	10
14	20	10
15	20	10
16	20	10
17	19	9
18	19	9
19	19	9
20	19	9
21	19	9
22	19	9
23	19	9
24	19	8
25	18	8
26	18	8
27	18	8
28	18	8
29	18	8
30	18	7
31	18	7

	Clearer (%)	Cloudier (%)
1	62	38
2	60	40
3	60	40
4	60	40
5	60	40
6	60	40
7	59	41
8	59	41
9	59	41
10	58	42
11	58	42
12	57	43
13	57	43
14	56	44
15	56	44
16	55	45
17	55	45
18	55	45
19	55	45
20	55	45
21	54	46
22	54	46
23	54	46
24	55	45
25	55	45
26	55	45
27	57	43
28	57	43
29	58	42
30	59	41
31	59	41

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	64	19	14	3
2	65	19	14	2
3	66	18	14	2
4	67	18	13	2
5	67	18	13	2
6	68	18	12	2
7	70	17	11	2
8	71	17	11	1
9	72	17	10	1
10	74	16	9	1
11	74	16	9	1
12	76	15	8	1
13	76	15	8	1
14	78	14	7	1
15	79	13	7	1
16	79	13	7	1
17	80	12	7	1
18	81	11	7	1
19	81	11	7	1
20	83	10	6	1
21	83	10	6	1
22	84	9	6	1
23	84	9	6	1
24	85	8	6	1
25	86	8	5	1
26	86	8	5	1
27	87	7	5	1
28	89	7	4	0
29	89	7	4	0
30	90	7	3	0
31	90	7	3	0

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

	Clearer (%)	Cloudier (%)
1	62	38
2	60	40
3	60	40
4	60	40
5	60	40
6	60	40
7	59	41
8	59	41
9	59	41
10	58	42
11	58	42
12	57	43
13	57	43
14	56	44
15	56	44
16	55	45
17	55	45
18	55	45
19	55	45
20	55	45
21	54	46
22	54	46
23	54	46
24	55	45
25	55	45
26	55	45
27	57	43
28	57	43
29	58	42
30	59	41
31	59	41

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	64	19	14	3
2	65	19	14	2
3	66	18	14	2
4	67	18	13	2
5	67	18	13	2
6	68	18	12	2
7	70	17	11	2
8	71	17	11	1
9	72	17	10	1
10	74	16	9	1
11	74	16	9	1
12	76	15	8	1
13	76	15	8	1
14	78	14	7	1
15	79	13	7	1
16	79	13	7	1
17	80	12	7	1
18	81	11	7	1
19	81	11	7	1
20	83	10	6	1
21	83	10	6	1
22	84	9	6	1
23	84	9	6	1
24	85	8	6	1
25	86	8	5	1
26	86	8	5	1
27	87	7	5	1
28	89	7	4	0
29	89	7	4	0
30	90	7	3	0
31	90	7	3	0

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

	Clearer (%)	Cloudier (%)
1	62	38
2	60	40
3	60	40
4	60	40
5	60	40
6	60	40
7	59	41
8	59	41
9	59	41
10	58	42
11	58	42
12	57	43
13	57	43
14	56	44
15	56	44
16	55	45
17	55	45
18	55	45
19	55	45
20	55	45
21	54	46
22	54	46
23	54	46
24	55	45
25	55	45
26	55	45
27	57	43
28	57	43
29	58	42
30	59	41
31	59	41

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

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	64	19	14	3
2	65	19	14	2
3	66	18	14	2
4	67	18	13	2
5	67	18	13	2
6	68	18	12	2
7	70	17	11	2
8	71	17	11	1
9	72	17	10	1
10	74	16	9	1
11	74	16	9	1
12	76	15	8	1
13	76	15	8	1
14	78	14	7	1
15	79	13	7	1
16	79	13	7	1
17	80	12	7	1
18	81	11	7	1
19	81	11	7	1
20	83	10	6	1
21	83	10	6	1
22	84	9	6	1
23	84	9	6	1
24	85	8	6	1
25	86	8	5	1
26	86	8	5	1
27	87	7	5	1
28	89	7	4	0
29	89	7	4	0
30	90	7	3	0
31	90	7	3	0