Bahía Blanca weather in April

In April, Bahía Blanca sees average daytime highs of 20°C and overnight lows near 12°C, with 55 mm of rain across 6 wet days and about 11 hours of daylight. It is the 6th-warmest and 6th-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 48% of the time in April, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of April to 10 h 24 min by month's end. Set against the rest of the year, April is Bahía Blanca's 6th-clearest and 11th-windiest month. For the whole year in context, see Bahía Blanca's year-round climate.

Daytime high
20°
6th warmest
Overnight low
12°
7th coldest
Rainfall
55 mm
6 wet days
Daylight
11 hours
7:40 AM – 6:39 PM
Cloud cover
46%
6th clearest
Wind
18 km/h
11th windiest
Solar energy
3.51 kWh/m²
Travel score
7.1
out of 10

Bahía Blanca is city in Argentina.

Density
2,301/km²
people per km²
Founded
1828

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 22°C in the first days to 18°C by the end.

A typical April day in Bahía Blanca reaches about 20°C in the afternoon and slips back to 12°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 24°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)
12214
22214
32214
42214
52114
62113
72113
82113
92113
102113
112113
122013
132013
142012
152012
162012
172012
182012
192012
201912
211912
221911
231911
241911
251911
261911
271911
281811
291811
301811

Bahía Blanca 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
Jan28° / 18°547.114.47.3
Feb27° / 18°656.713.57.4
Mar24° / 16°676.712.37.7
Apr20° / 12°556117.1
May16° / 385.49.95.6
Jun13° / 284.49.34.1
Jul12° / 3459.63.7
Aug14° / 354.810.54.7
Sep16° / 456.211.75.7
Oct19° / 11°647.8136.7
Nov23° / 14°63714.17.6
Dec26° / 17°576.214.77.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% 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 38%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16436
26337
36238
46238
56139
66139
76040
86040
96040
106238
116238
126238
136337
146337
156337
166436
176436
186436
196337
206337
216337
226238
236238
246139
256139
266040
275941
285941
295842
305743

Chance of precipitation in April

Any precipitation

Bahía Blanca gets around 55 mm of rain over 6 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 20% and peaks near 23% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
121
221
322
422
522
622
723
822
922
1022
1122
1221
1321
1421
1521
1620
1720
1820
1919
2019
2119
2218
2318
2418
2518
2617
2717
2817
2917
3017

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 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16523111
26722101
3682291
4692191
5702181
6722071
7722071
8741961
9741961
10761851
11771850
12791740
13791740
14801640
15811630
16821530
17821530
18831430
19841420
20851320
21851320
22861220
23871120
24871120
25881110
26891010
27891010
28891010
29891010
30891010

Wind in April

Winds average 18 km/h in April.

Across April, daily wind ranges from about 18 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 36 min at the start of April to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over April. Sunrise moves from 7:25 AM to 7:53 AM, and sunset from 7:02 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:257:02
211.67:267:01
311.57:276:59
411.57:286:58
511.57:296:56
611.47:306:54
711.47:316:53
811.37:326:51
911.37:336:50
1011.27:346:48
1111.27:356:47
1211.27:366:45
1311.17:376:44
1411.17:386:42
1511.07:396:41
1611.07:406:39
1711.07:406:38
1810.97:416:36
1910.97:426:35
2010.87:436:33
2110.87:446:32
2210.77:456:30
2310.77:466:29
2410.77:476:28
2510.67:486:26
2610.67:496:25
2710.67:506:24
2810.57:516:22
2910.57:526:21
3010.47:536:20

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 3.51 kWh/m².

For context, solar energy here swings from a low near 1.98 kWh/m² to a high of 7.89 kWh/m² in December across the year — April's 3.51 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.2Bright
24.1Bright
34.1Bright
44.0Bright
54.0Moderate
63.9Moderate
73.9Moderate
83.8Moderate
93.8Moderate
103.7Moderate
113.7Moderate
123.7Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.5Moderate
173.5Moderate
183.5Moderate
193.4Moderate
203.4Moderate
213.3Moderate
223.3Moderate
233.2Moderate
243.2Moderate
253.2Moderate
263.1Moderate
273.1Moderate
283.0Moderate
293.0Moderate
302.9Moderate
Planning a trip in April

Is April a good time to visit Bahía Blanca?

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

7.1
Sightseeing
6th-best month of the year
3.7
Beach & pool
6th-best month of the year

April is one of the better times to visit Bahía Blanca for general sightseeing.

What to pack for Bahía Blanca in April

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

In April, Bahía Blanca sees daytime highs around 20°C and nights near 12°C. Little to plan around — just the basics. About 6 days see rain.

Sea temperature near Bahía Blanca in April

The nearest coast averages about 17°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 km away) is warmest in January at about 22°C and coldest in August near 9°C.

It's comfortable for a long swim from Dec 8 to Mar 20 — about 3.4 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb22Refreshing
Mar21Refreshing
Apr17Cool
May14Bracing
Jun11Bracing
Jul9Bracing
Aug9Bracing
Sep11Bracing
Oct15Bracing
Nov18Cool
Dec21Refreshing

UV index in Bahía Blanca 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 Bahía Blanca peaks around December 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateModerateVery highExtremeDec 20UV 12Jun 21UV 2
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar8Very high
Apr6High
May3Moderate
Jun2Low
Jul2Moderate
Aug3Moderate
Sep5Moderate
Oct7Very high
Nov10Extreme
Dec13Extreme
Location & terrain

Where is Bahía Blanca?

Bahía Blanca sits at 38.7°S, 62.3°W, 20 m above sea level, in Argentina. The nearest listed city is Punta Alta, 25 km away.

Carmen de PatagonesViedma

Topography around Bahía Blanca

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

Within 3 km, the terrain around Bahía Blanca has only modest variations in elevation — a maximum elevation change of 67 m around an average of 26 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 110 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,244 m.

The land around Bahía Blanca is covered by artificial surfaces (80%) within 3 km, grassland (33%) and cropland (23%) within 16 km, and cropland (39%) and grassland (37%) within 80 km.

3 km
67 m
16 km
110 m
80 km
1,244 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
April weather nearby: Punta Alta 25 km · Coronel Pringles 114 km · Pigüé 125 km · Coronel Suárez 143 km · Río Colorado 161 km · Tres Arroyos 177 km · Carmen de Patagones 240 km · Viedma 242 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 Bahía Blanca (-38.7176°, -62.2655°, elevation 20 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).