San Pedro weather in April

In April, San Pedro sees average daytime highs of 23°C and overnight lows near 13°C, with 103 mm of rain across 8.2 wet days and about 11.2 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 21°C by the end. The sky is clear or mostly clear about 46% 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 Pedro's 7th-clearest and 8th-windiest month. For the whole year in context, see San Pedro's year-round climate.

Daytime high
23°
6th warmest
Overnight low
13°
7th coldest
Rainfall
103 mm
8.2 wet days
Daylight
11 h 12 min
7:24 AM – 6:34 PM
Cloud cover
48%
7th clearest
Wind
11 km/h
8th windiest
Solar energy
3.7 kWh/m²
Travel score
7.3
out of 10

San Pedro is city in the province of Buenos Aires in Argentina.

Founded
1907

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 21°C by the end.

A typical April day in San Pedro reaches about 23°C in the afternoon and slips back to 13°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
32514
42514
52414
62414
72414
82414
92414
102414
112413
122313
132313
142313
152313
162313
172313
182313
192312
202312
212212
222212
232212
242212
252212
262212
272212
282212
292112
302112

San Pedro weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 19°978.1145.5
Feb29° / 18°1118.313.36.0
Mar27° / 16°1057.412.37.2
Apr23° / 13°1038.211.27.3
May19° / 10°68610.36.7
Jun16° / 485.59.85.6
Jul15° / 485.6105.3
Aug18° / 625.510.76.5
Sep20° / 686.311.87.0
Oct23° / 12°1229.712.87.0
Nov26° / 15°1057.813.77.2
Dec29° / 17°104914.26.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% 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 42%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26139
36139
46040
55941
65842
75842
85842
95842
105842
115842
125941
135842
145842
155941
165941
175842
185941
195941
205941
215941
225941
235842
245842
255743
265743
275644
285644
295644
305644

Chance of precipitation in April

Any precipitation

San Pedro gets around 103 mm of rain over 8.2 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 29% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
125
226
326
427
527
627
728
828
928
1029
1128
1228
1328
1427
1527
1626
1726
1826
1925
2025
2125
2225
2325
2425
2525
2625
2724
2824
2924
3024

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 48% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1342526151
2352526141
3352525131
4362525131
5372525121
6382524111
7392624111
8402623101
941262291
1042262191
1144262081
1245271981
1346271871
1448271771
1549271661
1650281661
1750281561
1852281451
1952281451
2053281351
2154271351
2254271351
2355271350
2457261340
2558251340
2658251340
2759241340
2859231440
2959231440
3060221440

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 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
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 7:13 AM to 7:35 AM, and sunset from 6:54 PM to 6:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.77:136:54
211.77:136:53
311.67:146:51
411.67:156:50
511.57:166:48
611.57:166:47
711.57:176:46
811.47:186:44
911.47:196:43
1011.47:196:42
1111.37:206:40
1211.37:216:39
1311.37:226:38
1411.27:226:36
1511.27:236:35
1611.27:246:34
1711.17:256:33
1811.17:266:31
1911.17:266:30
2011.07:276:29
2111.07:286:28
2211.07:296:26
2310.97:296:25
2410.97:306:24
2510.97:316:23
2610.87:326:22
2710.87:326:21
2810.87:336:19
2910.77:346:18
3010.77:356:17

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 2.32 kWh/m² to a high of 7.37 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
64.1Bright
74.0Bright
84.0Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.7Moderate
163.7Moderate
173.7Moderate
183.6Moderate
193.6Moderate
203.6Moderate
213.6Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.3Moderate
293.3Moderate
303.2Moderate
Planning a trip in April

Is April a good time to visit San Pedro?

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

7.3
Sightseeing
1st-best month of the year
5.6
Beach & pool
6th-best month of the year

April is one of the better times to visit San Pedro for general sightseeing.

What to pack for San Pedro in April

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

In April, San Pedro sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

UV index in San Pedro 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 Pedro 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
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme

Air quality in San Pedro 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 Pedro is worst in August — around 40 µg/m³ PM2.5 (poor), about 6.5× the cleanest month (April, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodAug 1637 µg/m³Apr 156 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb7Good
Mar7Good
Apr6Good
May8Good
Jun10Good
Jul21Moderate
Aug40Poor
Sep17Moderate
Oct13Moderate
Nov8Good
Dec8Good
Location & terrain

Where is San Pedro?

San Pedro sits at 33.7°S, 59.7°W, 30 m above sea level, in Argentina. The nearest listed city is Baradero, 21 km away.

Topography around San Pedro

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

Within 3 km, the terrain around San Pedro has only modest variations in elevation — a maximum elevation change of 33 m around an average of 16 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 92 m.

The land around San Pedro is covered by artificial surfaces (27%) and wetland (24%) within 3 km, wetland (46%) and cropland (28%) within 16 km, and cropland (45%) and wetland (33%) within 80 km.

3 km
33 m
16 km
49 m
80 km
92 m
treesgrasslandcroplandartificial surfaceswaterwetland
April weather nearby: Baradero 21 km · Ramallo 38 km · Arrecifes 59 km · San Nicolás de los Arroyos 63 km · San Antonio de Areco 66 km · Gualeguay 68 km · Zárate 75 km · Carmen de Areco 79 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 Pedro (-33.6792°, -59.6663°, elevation 30 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).