Santa Rosa weather in April

In April, Santa Rosa sees average daytime highs of 25°C and overnight lows near 17°C, with 162 mm of rain across 15.3 wet days and about 11.5 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 24°C by the end. The sky is clear or mostly clear about 21% of the time in April, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of April to 11 h 12 min by month's end. Set against the rest of the year, April is Santa Rosa's 8th-clearest and 9th-windiest month. For the whole year in context, see Santa Rosa's year-round climate.

Daytime high
25°
8th warmest
Overnight low
17°
6th coldest
Rainfall
162 mm
15.3 wet days
Daylight
11 h 30 min
7:34 AM – 7:02 PM
Cloud cover
69%
8th clearest
Wind
5 km/h
9th windiest
Solar energy
3.35 kWh/m²
Travel score
5.9
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 24°C by the end.

A typical April day in Santa Rosa reaches about 25°C in the afternoon and slips back to 17°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 30°C. Set against its neighbours, April runs about 3°C cooler than March and about 3°C warmer than May.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12619
22619
32619
42618
52618
62618
72618
82618
92518
102518
112518
122518
132517
142517
152517
162517
172517
182517
192517
202517
212516
222416
232416
242416
252416
262416
272416
282416
292416
302416

How April really feels in Santa Rosa

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.

Santa Rosa weather by month

How April compares with the rest of the year at a glance. April is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°22416.513.33.7
Feb30° / 21°22816.212.84.1
Mar28° / 20°24918.112.24.8
Apr25° / 17°16215.311.55.9
May22° / 14°7911.910.96.3
Jun20° / 11°387.910.66.6
Jul21° / 235.110.77.5
Aug25° / 11°163.611.28.3
Sep28° / 15°224.311.97.1
Oct30° / 18°819.512.55.0
Nov31° / 20°12611.913.14.3
Dec31° / 21°21815.413.43.7

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 13% of April, with mostly cloudy or overcast conditions the remaining 66%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13070
23070
33070
43070
52971
63070
72971
83070
93070
103169
113169
123268
133268
143367
153466
163565
173565
183664
193664
203664
213664
223763
233763
243763
253763
263763
273763
283763
293763
303763

Chance of precipitation in April

Any precipitation

Santa Rosa gets around 162 mm of rain over 15.3 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 50% and peaks near 58% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
158
257
357
457
556
656
755
854
953
1052
1151
1250
1349
1449
1548
1648
1747
1847
1947
2047
2146
2246
2346
2446
2545
2645
2745
2845
2944
3044

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the muggy band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1211283821
2212283721
3212283721
4213283621
5313283520
6314283420
7415283419
8415283319
9516283318
10617283217
11717283216
12818283115
13918283114
141018293113
151018293012
161118293011
171218303010
18121830309
19131930299
20141930298
21141930298
22151931287
23161931287
24171931286
25171831286
26181831276
27191831275
28201831275
29211831264
30221830264

Wind in April

Winds average 5 km/h in April.

Across April, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 48 min at the start of April to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over April. Sunrise moves from 7:28 AM to 7:40 AM, and sunset from 7:16 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:287:16
211.87:297:15
311.87:297:14
411.77:307:13
511.77:307:12
611.77:307:11
711.77:317:10
811.67:317:09
911.67:317:08
1011.67:327:07
1111.67:327:06
1211.57:337:05
1311.57:337:04
1411.57:337:03
1511.57:347:03
1611.57:347:02
1711.47:357:01
1811.47:357:00
1911.47:356:59
2011.47:366:58
2111.37:366:57
2211.37:376:56
2311.37:376:55
2411.37:386:55
2511.37:386:54
2611.27:386:53
2711.27:396:52
2811.27:396:51
2911.27:406:51
3011.27:406:50

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 3.35 kWh/m².

For context, solar energy here swings from a low near 2.94 kWh/m² to a high of 5.68 kWh/m² in December across the year — April's 3.35 kWh/m² sits near the bottom.

01234151015202530
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.5Moderate
43.5Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.4Moderate
213.4Moderate
223.4Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.2Moderate
293.2Moderate
303.2Moderate
Planning a trip in April

Hazard calendar for Santa Rosa

In seasonPeak

In April, Santa Rosa sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Santa Rosa's monsoon runs November–April, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Santa Rosa?

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

5.9
Sightseeing
6th-best month of the year
5.3
Beach & pool
9th-best month of the year

April is a reasonable time to visit Santa Rosa for sightseeing.

What to pack for Santa Rosa in April

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

In April, Santa Rosa sees daytime highs around 25°C and nights near 17°C. Pack rain gear. Worth having: light clothes. About 15 days see rain.

rain gearlight clothes

UV index in Santa Rosa in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santa Rosa peaks around January 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 18UV 15Jul 11UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar13Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep10Very high
Oct8Very high
Nov13Extreme
Dec14Extreme

Air quality in Santa Rosa 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 Santa Rosa is worst in September — around 36 µg/m³ PM2.5 (poor), about 8.2× the cleanest month (May, 4 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateSep 2135 µg/m³May 135 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar7Good
Apr5Good
May4Good
Jun7Good
Jul8Good
Aug15Moderate
Sep36Poor
Oct32Moderate
Nov27Moderate
Dec17Moderate
Location & terrain

Where is Santa Rosa?

Santa Rosa sits at 23.4°S, 64.4°W, 341 m above sea level, in Argentina. The nearest listed city is Pichanal, 23 km away.

Topography around Santa Rosa

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

Within 3 km, the terrain around Santa Rosa has only modest variations in elevation — a maximum elevation change of 78 m around an average of 352 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 433 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,850 m.

The land around Santa Rosa is covered by cropland (43%) and trees (31%) within 3 km, trees (62%) and cropland (31%) within 16 km, and trees (64%) within 80 km.

3 km
78 m
16 km
433 m
80 km
4,850 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Pichanal 23 km · San Ramón de la Nueva Orán 30 km · Embarcación 39 km · Libertador General San Martín 60 km · Bermejo 74 km · San Pedro de Jujuy 103 km · General Mosconi 109 km · Tartagal 116 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 Santa Rosa (-23.3943°, -64.4251°, elevation 341 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).