San Nicolás de los Arroyos weather in April

In April, San Nicolás de los Arroyos sees average daytime highs of 23°C and overnight lows near 14°C, with 106 mm of rain across 8.1 wet days and about 11.2 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 22°C by the end. The sky is clear or mostly clear about 47% of the time in April, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of April to 10 h 42 min by month's end. Set against the rest of the year, April is San Nicolás de los Arroyos's 8th-clearest and 8th-windiest month. For the whole year in context, see San Nicolás de los Arroyos's year-round climate.

Daytime high
23°
7th warmest
Overnight low
14°
7th coldest
Rainfall
106 mm
8.1 wet days
Daylight
11 h 12 min
7:26 AM – 6:36 PM
Cloud cover
47%
8th clearest
Wind
11 km/h
8th windiest
Solar energy
3.7 kWh/m²
Travel score
7.4
out of 10

San Nicolás de los Arroyos is city in Argentina.

Founded
1748

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 22°C by the end.

A typical April day in San Nicolás de los Arroyos reaches about 23°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 28°C. Set against its neighbours, April runs about 4°C cooler than March and about 4°C warmer than May.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12515
22515
32515
42515
52515
62415
72415
82415
92414
102414
112414
122414
132414
142414
152314
162314
172313
182313
192313
202313
212313
222313
232213
242213
252213
262213
272212
282212
292212
302212

San Nicolás de los Arroyos weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 19°1038.2145.4
Feb29° / 19°1078.113.25.9
Mar27° / 17°1177.512.37.0
Apr23° / 14°1068.111.27.4
May19° / 11°66610.36.8
Jun16° / 445.29.85.8
Jul16° / 425.1105.6
Aug18° / 56510.86.8
Sep21° / 10°676.311.87.1
Oct23° / 13°1129.712.87.1
Nov26° / 15°1157.613.77.2
Dec29° / 18°1078.614.26.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 12% of April, with mostly cloudy or overcast conditions the remaining 41%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26238
36238
46139
56040
66040
75941
85941
95941
105941
115842
125842
135842
145941
155941
165941
176040
186040
196040
206040
215941
225842
235842
245842
255842
265743
275743
285644
295545
305446

Chance of precipitation in April

Any precipitation

San Nicolás de los Arroyos gets around 106 mm of rain over 8.1 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 26% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
126
226
327
427
527
628
728
828
928
1028
1128
1228
1327
1426
1526
1625
1725
1825
1925
2024
2125
2225
2325
2425
2525
2625
2725
2825
2925
3025

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 11% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1282528181
2282527181
3292527171
4302627171
5312626161
6322626151
7332625151
8342625141
9352624131
10372723121
11382722121
12392721111
13412720101
1442282091
1543281991
1644281881
1746291871
1847291771
1948291661
2049291661
2149291561
2250291551
2351291451
2452281451
2553271550
2653271550
2754261550
2855251550
2955241650
3056231650

Wind in April

Winds average 11 km/h in April.

Across April, 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.

051015151015202530
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

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 42 min at the start of April to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over April. Sunrise moves from 7:15 AM to 7:36 AM, and sunset from 6:56 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.77:156:56
211.77:166:55
311.67:166:53
411.67:176:52
511.67:186:51
611.57:186:49
711.57:196:48
811.47:206:47
911.47:216:45
1011.47:216:44
1111.37:226:43
1211.37:236:41
1311.37:246:40
1411.27:246:39
1511.27:256:38
1611.27:266:36
1711.17:276:35
1811.17:276:34
1911.17:286:33
2011.07:296:31
2111.07:306:30
2211.07:306:29
2310.97:316:28
2410.97:326:27
2510.97:336:25
2610.87:336:24
2710.87:346:23
2810.87:356:22
2910.87:366:21
3010.77:366:20

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 3.7 kWh/m².

For context, solar energy here swings from a low near 2.34 kWh/m² to a high of 7.31 kWh/m² in December across the year — April's 3.7 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.2Bright
44.2Bright
54.1Bright
64.0Bright
74.0Bright
84.0Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.7Moderate
163.7Moderate
173.7Moderate
183.7Moderate
193.6Moderate
203.6Moderate
213.6Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.3Moderate
293.3Moderate
303.3Moderate
Planning a trip in April

Is April a good time to visit San Nicolás de los Arroyos?

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

7.4
Sightseeing
1st-best month of the year
5.8
Beach & pool
6th-best month of the year

April is one of the better times to visit San Nicolás de los Arroyos for general sightseeing.

What to pack for San Nicolás de los Arroyos in April

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

In April, San Nicolás de los Arroyos sees daytime highs around 23°C and nights near 14°C. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

UV index in San Nicolás de los Arroyos in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Nicolás de los Arroyos peaks around January 15 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 — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 15UV 13Jun 19UV 3
UV index (midday)Level
Jan14Extreme
Feb12Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct9Very high
Nov11Extreme
Dec12Extreme

Air quality in San Nicolás de los Arroyos in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in San Nicolás de los Arroyos is worst in August — around 46 µg/m³ PM2.5 (poor), about 8.0× the cleanest month (April, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodAug 1544 µg/m³Apr 146 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb7Good
Mar7Good
Apr6Good
May7Good
Jun10Good
Jul28Moderate
Aug46Poor
Sep20Moderate
Oct14Moderate
Nov8Good
Dec7Good
Location & terrain

Where is San Nicolás de los Arroyos?

San Nicolás de los Arroyos sits at 33.3°S, 60.2°W, 28 m above sea level, in Argentina. The nearest listed city is Villa Constitución, 16 km away.

Topography around San Nicolás de los Arroyos

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Nicolás de los Arroyos.

Within 3 km, the terrain around San Nicolás de los Arroyos has only modest variations in elevation — a maximum elevation change of 38 m around an average of 16 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 53 m; within 80 km, only modest variations in elevation — a maximum elevation change of 98 m.

The land around San Nicolás de los Arroyos is covered by artificial surfaces (42%) within 3 km, cropland (39%) and wetland (32%) within 16 km, and cropland (50%) and wetland (31%) within 80 km.

3 km
38 m
16 km
53 m
80 km
98 m
treesgrasslandcroplandartificial surfaceswaterwetland
April weather nearby: Villa Constitución 16 km · Ramallo 25 km · Arroyo Seco 34 km · Gobernador Gálvez 52 km · Rosario 59 km · San Pedro 63 km · Pérez 64 km · Pergamino 70 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 San Nicolás de los Arroyos (-33.3342°, -60.2108°, elevation 28 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).