Colón weather in May

In May, Colón sees average daytime highs of 20°C and overnight lows near 11°C, with 87 mm of rain across 7.1 wet days and about 10.4 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 18°C by the end. The sky is clear or mostly clear about 35% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 42 min at the start of May to 10 h 06 min by month's end. Set against the rest of the year, May is Colón's 12th-clearest and 11th-windiest month. For the whole year in context, see Colón's year-round climate.

Daytime high
20°
9th warmest
Overnight low
11°
5th coldest
Rainfall
87 mm
7.1 wet days
Daylight
10 h 24 min
7:38 AM – 5:59 PM
Cloud cover
57%
12th clearest
Wind
11 km/h
11th windiest
Solar energy
2.78 kWh/m²
Travel score
6.8
out of 10

Colón is city in the province of Entre Ríos, Argentina.

Founded
1863

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 18°C by the end.

A typical May day in Colón reaches about 20°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 25°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)
12212
22212
32212
42212
52212
62112
72112
82112
92112
102112
112112
122112
132111
142111
152011
162011
172011
182011
192011
202011
212011
221910
231910
241910
251910
261910
271910
281910
291810
30189
31189

Colón weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 20°1068.213.95.0
Feb30° / 19°116813.25.5
Mar28° / 17°1248.212.26.7
Apr24° / 14°1418.211.27.3
May20° / 11°877.110.46.8
Jun17° / 796.89.96.1
Jul17° / 716.410.15.9
Aug19° / 886.810.86.7
Sep21° / 10°937.411.87.0
Oct24° / 13°126912.87.1
Nov27° / 16°1077.513.77.0
Dec30° / 18°119814.15.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% 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 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35248
45149
55149
65050
75050
84951
94852
104852
114852
124753
134654
144753
154654
164654
174555
184654
194654
204654
214654
224654
234753
244753
254753
264753
274753
284951
294951
304951
314951

Chance of precipitation in May

Any precipitation

Colón gets around 87 mm of rain over 7.1 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 24% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
124
224
324
423
523
623
723
823
923
1023
1123
1223
1323
1423
1523
1623
1723
1823
1923
2023
2123
2222
2322
2422
2522
2621
2721
2821
2921
3020
3120

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
151211891
253201791
354201781
455201780
556201680
656201680
757201670
858201570
958201570
1059201560
1159201560
1260201550
1359201650
1459201650
1560191650
1659191750
1760191740
1861181740
1962171740
2062171740
2164161640
2265151640
2365151640
2467141540
2568141440
2669131440
2769131341
2870131241
2971131141
3072131041
317313941

Wind in May

Winds average 11 km/h in May.

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

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 42 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 36 minutes over May. Sunrise moves from 7:27 AM to 7:48 AM, and sunset from 6:12 PM to 5:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.77:276:12
210.77:286:11
310.77:296:10
410.77:296:09
510.67:306:08
610.67:316:07
710.67:326:07
810.67:326:06
910.57:336:05
1010.57:346:04
1110.57:356:03
1210.57:356:02
1310.47:366:02
1410.47:376:01
1510.47:376:00
1610.47:385:59
1710.37:395:59
1810.37:405:58
1910.37:405:58
2010.37:415:57
2110.27:425:56
2210.27:425:56
2310.27:435:55
2410.27:445:55
2510.27:445:54
2610.17:455:54
2710.17:465:53
2810.17:465:53
2910.17:475:53
3010.17:475:52
3110.17:485:52

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.78 kWh/m².

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 7.24 kWh/m² in December across the year — May's 2.78 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.2Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.1Moderate
73.0Moderate
83.0Moderate
93.0Moderate
102.9Moderate
112.9Moderate
122.9Moderate
132.8Moderate
142.8Moderate
152.8Moderate
162.8Moderate
172.7Moderate
182.7Moderate
192.7Moderate
202.6Moderate
212.6Moderate
222.6Moderate
232.6Moderate
242.6Moderate
252.6Moderate
262.5Moderate
272.5Moderate
282.5Moderate
292.5Moderate
302.5Moderate
312.5Moderate
Planning a trip in May

Is May a good time to visit Colón?

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

6.8
Sightseeing
5th-best month of the year
3.7
Beach & pool
9th-best month of the year

May is a reasonable time to visit Colón for sightseeing.

What to pack for Colón in May

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

In May, Colón sees daytime highs around 20°C and nights near 11°C. Little to plan around — just the basics. About 7 days see rain.

UV index in Colón 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 Colón peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 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 15UV 13Jun 20UV 3
UV index (midday)Level
Jan14Extreme
Feb11Extreme
Mar10Very high
Apr7High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug5Moderate
Sep7High
Oct9Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Colón?

Colón sits at 32.2°S, 58.1°W, 25 m above sea level, in Argentina. The nearest listed city is Paysandú, 12 km away.

Topography around Colón

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

Within 3 km, the terrain around Colón has only modest variations in elevation — a maximum elevation change of 41 m around an average of 13 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 70 m; within 80 km, only modest variations in elevation — a maximum elevation change of 152 m.

The land around Colón is covered by trees (31%), grassland (24%) and water (24%) within 3 km, grassland (45%) and trees (29%) within 16 km, and grassland (39%), cropland (36%) and trees (21%) within 80 km.

3 km
41 m
16 km
70 m
80 km
152 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Paysandú 12 km · Concepción del Uruguay 30 km · Young 72 km · Villaguay 92 km · Concordia 93 km · Gualeguaychú 94 km · Salto 94 km · Fray Bentos 101 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 Colón (-32.2231°, -58.1443°, elevation 25 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).