Federal weather in May

In May, Federal sees average daytime highs of 21°C and overnight lows near 11°C, with 96 mm of rain across 7.2 wet days and about 10.5 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 19°C by the end. The sky is clear or mostly clear about 36% 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 12 min by month's end. Set against the rest of the year, May is Federal's 12th-clearest and 8th-windiest month. For the whole year in context, see Federal's year-round climate.

Daytime high
21°
9th warmest
Overnight low
11°
5th coldest
Rainfall
96 mm
7.2 wet days
Daylight
10 h 24 min
7:38 AM – 6:04 PM
Cloud cover
56%
12th clearest
Wind
12 km/h
8th windiest
Solar energy
2.88 kWh/m²
Travel score
6.9
out of 10

Federal is human settlement in Argentina.

Founded
1880

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 19°C by the end.

A typical May day in Federal reaches about 21°C in the afternoon and slips back to 11°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 26°C. Set against its neighbours, May runs about 4°C cooler than April and about 3°C warmer than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12313
22213
32213
42213
52212
62212
72212
82212
92212
102212
112112
122112
132112
142112
152112
162112
172111
182111
192011
202011
212011
222011
232011
242011
252010
261910
271910
281910
291910
301910
311910

Federal weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 20°119913.84.7
Feb30° / 19°1169.213.15.2
Mar28° / 18°120912.26.3
Apr25° / 14°1538.611.37.2
May21° / 11°967.210.56.9
Jun18° / 787.1106.4
Jul18° / 615.910.26.5
Aug20° / 806.510.97.1
Sep22° / 11°917.111.87.3
Oct25° / 14°1419.312.87.1
Nov27° / 16°1237.713.66.8
Dec30° / 18°1238.4145.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35248
45248
55248
65149
75149
85050
94951
104951
114951
124852
134852
144753
154753
164654
174654
184555
194654
204654
214654
224753
234753
244852
254852
264951
275050
285050
295050
305050
315050

Chance of precipitation in May

Any precipitation

Federal gets around 96 mm of rain over 7.2 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 23% and peaks near 26% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
126
226
326
426
526
625
725
825
925
1024
1124
1224
1323
1423
1523
1622
1722
1822
1921
2021
2121
2221
2321
2421
2521
2621
2721
2821
2921
3021
3121

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 59% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1482217121
2482117121
3492117121
4502116121
5512116111
6512215111
7522215101
8522215101
953221591
1053221591
1154221581
1255221580
1355221670
1456211670
1556211670
1657201760
1758191760
1858191760
1960181750
2061171750
2162161651
2263151651
2365141551
2465141551
2567131451
2668131351
2769131251
2871121151
2971121151
3072121051
317312951

Wind in May

Winds average 12 km/h in May.

Across May, 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
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 48 min at the start of May to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over May. Sunrise moves from 7:28 AM to 7:48 AM, and sunset from 6:17 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.87:286:17
210.87:296:16
310.87:296:15
410.77:306:14
510.77:316:13
610.77:316:12
710.77:326:11
810.67:336:10
910.67:346:10
1010.67:346:09
1110.67:356:08
1210.57:366:07
1310.57:366:07
1410.57:376:06
1510.57:386:05
1610.47:386:04
1710.47:396:04
1810.47:406:03
1910.47:406:03
2010.47:416:02
2110.37:426:01
2210.37:426:01
2310.37:436:00
2410.37:446:00
2510.37:445:59
2610.27:455:59
2710.27:455:59
2810.27:465:58
2910.27:475:58
3010.27:475:58
3110.27:485:57

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.88 kWh/m².

For context, solar energy here swings from a low near 2.46 kWh/m² to a high of 7.16 kWh/m² in December across the year — May's 2.88 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.2Moderate
43.2Moderate
53.2Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.1Moderate
103.0Moderate
113.0Moderate
123.0Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.9Moderate
172.8Moderate
182.8Moderate
192.8Moderate
202.8Moderate
212.7Moderate
222.7Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.6Moderate
Planning a trip in May

Is May a good time to visit Federal?

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

6.9
Sightseeing
5th-best month of the year
4.1
Beach & pool
9th-best month of the year

May is a reasonable time to visit Federal for sightseeing.

What to pack for Federal in May

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

In May, Federal sees daytime highs around 21°C and nights near 11°C. Little to plan around — just the basics. About 7 days see rain.

UV index in Federal 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 Federal peaks around January 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 20UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar11Extreme
Apr7High
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5High
Sep7High
Oct7Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Federal?

Federal sits at 31.0°S, 58.8°W, 71 m above sea level, in Argentina. The nearest listed city is Chajarí, 79 km away.

Topography around Federal

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

Within 3 km, the terrain around Federal has only modest variations in elevation — a maximum elevation change of 17 m around an average of 64 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 30 m; within 80 km, only modest variations in elevation — a maximum elevation change of 82 m.

The land around Federal is covered by grassland (64%) within 3 km, grassland (78%) within 16 km, and grassland (53%), cropland (22%) and trees (20%) within 80 km.

3 km
17 m
16 km
30 m
80 km
82 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Chajarí 79 km · La Paz 86 km · Concordia 87 km · Salto 92 km · Santa Elena 96 km · Villaguay 104 km · San Javier 118 km · Esquina 127 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
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus Christ 1%

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 Federal (-30.9562°, -58.7797°, elevation 71 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).