San Justo weather in April

In April, San Justo sees average daytime highs of 25°C and overnight lows near 15°C, with 132 mm of rain across 8.9 wet days and about 11.3 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 23°C by the end. The sky is clear or mostly clear about 45% 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 48 min by month's end. Set against the rest of the year, April is San Justo's 9th-clearest and 9th-windiest month. For the whole year in context, see San Justo's year-round climate.

Daytime high
25°
7th warmest
Overnight low
15°
7th coldest
Rainfall
132 mm
8.9 wet days
Daylight
11 h 18 min
7:25 AM – 6:40 PM
Cloud cover
48%
9th clearest
Wind
11 km/h
9th windiest
Solar energy
3.8 kWh/m²
Travel score
7.2
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 23°C by the end.

A typical April day in San Justo reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 30°C. Set against its neighbours, April runs about 4°C cooler than March and about 4°C warmer than May.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12616
22616
32616
42616
52616
62616
72616
82515
92515
102515
112515
122515
132515
142515
152515
162515
172414
182414
192414
202414
212414
222414
232414
242414
252414
262314
272313
282313
292313
302313

How April really feels in San Justo

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

San Justo weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 20°1259.613.84.6
Feb30° / 20°1248.713.15.2
Mar28° / 18°1268.912.26.3
Apr25° / 15°1328.911.37.2
May21° / 12°786.210.57.1
Jun18° / 495.2106.7
Jul18° / 374.310.26.9
Aug21° / 564.710.97.5
Sep23° / 11°706.311.87.6
Oct25° / 14°1379.212.87.1
Nov28° / 16°1258.113.66.6
Dec30° / 19°1348.9145.3

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 14% of April, with mostly cloudy or overcast conditions the remaining 41%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16139
26139
36040
46040
55941
65941
75842
85842
95842
105842
115842
125842
135941
145941
155941
166040
176040
186040
196040
206040
216040
226040
236040
246040
255941
265842
275842
285743
295743
305644

Chance of precipitation in April

Any precipitation

San Justo gets around 132 mm of rain over 8.9 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 29% and peaks near 31% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
130
230
331
431
531
631
731
831
931
1030
1130
1230
1329
1429
1528
1628
1727
1827
1927
2027
2127
2227
2327
2427
2527
2627
2727
2827
2926
3026

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 33% of days. Sticky, muggy-or-worse air turns up on roughly 23% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1202623228
2212623228
3222523228
4222622218
5232522218
6242522218
7252521208
8262521208
9272521208
10282520197
11292520197
12302619187
13302619187
14312719176
15322719166
16322719165
17332819155
18342819155
19352818154
20362718144
21372718144
22382718144
23392618143
24402518143
25412518143
26422418143
27432318143
28442218142
29452118142
30462017142

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 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over April. Sunrise moves from 7:15 AM to 7:34 AM, and sunset from 6:59 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.77:156:59
211.77:166:57
311.77:176:56
411.67:176:55
511.67:186:54
611.67:196:52
711.57:196:51
811.57:206:50
911.57:216:49
1011.47:216:47
1111.47:226:46
1211.47:226:45
1311.37:236:44
1411.37:246:43
1511.37:246:41
1611.37:256:40
1711.27:266:39
1811.27:266:38
1911.27:276:37
2011.17:286:36
2111.17:286:34
2211.17:296:33
2311.07:306:32
2411.07:306:31
2511.07:316:30
2611.07:326:29
2710.97:326:28
2810.97:336:27
2910.97:346:26
3010.87:346:25

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 3.8 kWh/m².

For context, solar energy here swings from a low near 2.5 kWh/m² to a high of 7.16 kWh/m² in December across the year — April's 3.8 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.4Bright
34.4Bright
44.3Bright
54.3Bright
64.2Bright
74.2Bright
84.1Bright
94.1Bright
104.0Bright
114.0Moderate
124.0Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.7Moderate
203.7Moderate
213.7Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.5Moderate
263.5Moderate
273.5Moderate
283.4Moderate
293.4Moderate
303.4Moderate
Planning a trip in April

Is April a good time to visit San Justo?

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

7.2
Sightseeing
3rd-best month of the year
6.3
Beach & pool
7th-best month of the year

April is one of the better times to visit San Justo for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for San Justo in April

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

In April, San Justo sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in San Justo in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 San Justo peaks around January 18 at about 14 (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 18UV 14Jun 20UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar10Extreme
Apr7High
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep7High
Oct9Very high
Nov11Extreme
Dec13Extreme
Location & terrain

Where is San Justo?

San Justo sits at 30.8°S, 60.6°W, 49 m above sea level, in Argentina. The nearest listed city is San Javier, 68 km away.

Topography around San Justo

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

Within 3 km, the terrain around San Justo has only modest variations in elevation — a maximum elevation change of 26 m around an average of 52 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 49 m; within 80 km, only modest variations in elevation — a maximum elevation change of 79 m.

The land around San Justo is covered by cropland (55%) and grassland (23%) within 3 km, cropland (72%) and grassland (20%) within 16 km, and cropland (41%) and grassland (30%) within 80 km.

3 km
26 m
16 km
49 m
80 km
79 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
April weather nearby: San Javier 68 km · Santa Elena 79 km · Esperanza 80 km · La Paz 91 km · Sunchales 94 km · Santa Fe 96 km · Santo Tomé 98 km · Rafaela 100 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 Justo (-30.7899°, -60.5928°, elevation 49 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).