Chillán Viejo weather in April

In April, Chillán Viejo sees average daytime highs of 20°C and overnight lows near 8°C, with 60 mm of rain across 5.2 wet days and about 11.1 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 42 min at the start of April to 10 h 36 min by month's end. Set against the rest of the year, April is Chillán Viejo's 6th-clearest and 10th-windiest month. For the whole year in context, see Chillán Viejo's year-round climate.

Daytime high
20°
6th warmest
Overnight low
7th coldest
Rainfall
60 mm
5.2 wet days
Daylight
11 h 06 min
8:17 AM – 7:21 PM
Cloud cover
45%
6th clearest
Wind
11 km/h
10th windiest
Solar energy
3.96 kWh/m²
Travel score
7.1
out of 10

Chillán Viejo is city in Chile.

Density
3,158/km²
people per km²
Founded
1895

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 Chillán Viejo reaches about 20°C in the afternoon and slips back to 8°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 23°C. Set against its neighbours, April runs about 5°C cooler than March and about 4°C warmer than May.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1229
2229
3229
4229
5219
6219
7219
8219
9219
10209
11209
12208
13208
14208
15208
16198
17198
18198
19198
20198
21198
22188
23188
24188
25188
26188
27187
28187
29187
30177

Chillán Viejo 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
Jan27° / 13°81.114.28.6
Feb27° / 12°181.613.48.6
Mar24° / 11°212.712.38.7
Apr20° / 605.211.17.1
May15° / 1579.610.14.8
Jun13° / 21413.39.53.2
Jul13° / 15911.79.83.3
Aug14° / 13211.310.64.1
Sep16° / 726.911.85.6
Oct19° / 496.512.96.8
Nov22° / 253.1148.2
Dec25° / 11°162.414.58.7

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 (%)
17327
27228
37129
47030
56931
66832
76733
86634
96535
106436
116436
126238
136238
146139
156139
166139
175941
185941
195941
205842
215842
225842
235743
245644
255644
265644
275545
285446
295446
305347

Chance of precipitation in April

Any precipitation

Chillán Viejo gets around 60 mm of rain over 5.2 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 18% and peaks near 22% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
114
215
315
416
517
617
717
817
917
1017
1117
1217
1317
1417
1517
1617
1717
1817
1917
2017
2117
2217
2318
2418
2519
2620
2720
2821
2921
3022

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1919
2928
3928
4928
5937
6937
7937
8946
9946
10946
11955
12955
13955
14955
15964
16964
17964
18964
19964
20964
21964
22964
23964
24964
25964
26964
27964
28964
29964
30973

Wind in April

Winds average 11 km/h in April.

Across April, daily wind ranges from about 10 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
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 42 min at the start of April to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over April. Sunrise moves from 8:04 AM to 8:29 AM, and sunset from 7:43 PM to 7:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.78:047:43
211.68:057:41
311.68:057:40
411.58:067:38
511.58:077:37
611.58:087:35
711.48:097:34
811.48:107:32
911.38:117:31
1011.38:127:29
1111.38:127:28
1211.28:137:26
1311.28:147:25
1411.18:157:24
1511.18:167:22
1611.18:177:21
1711.08:187:19
1811.08:197:18
1911.08:197:17
2010.98:207:15
2110.98:217:14
2210.88:227:13
2310.88:237:11
2410.88:247:10
2510.78:257:09
2610.78:267:07
2710.78:277:06
2810.68:277:05
2910.68:287:04
3010.68:297:03

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 3.96 kWh/m².

For context, solar energy here swings from a low near 1.85 kWh/m² to a high of 8.63 kWh/m² in January across the year — April's 3.96 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.8Bright
34.7Bright
44.7Bright
54.6Bright
64.5Bright
74.4Bright
84.4Bright
94.3Bright
104.3Bright
114.2Bright
124.1Bright
134.1Bright
144.0Bright
154.0Moderate
163.9Moderate
173.9Moderate
183.8Moderate
193.8Moderate
203.7Moderate
213.6Moderate
223.6Moderate
233.5Moderate
243.5Moderate
253.5Moderate
263.4Moderate
273.4Moderate
283.3Moderate
293.3Moderate
303.2Moderate
Planning a trip in April

Hazard calendar for Chillán Viejo

In seasonPeak

None of Chillán Viejo's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Chillán Viejo's rainy season runs May–August, when most of the year's rain falls.

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

Is April a good time to visit Chillán Viejo?

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
3.5
Beach & pool
6th-best month of the year

April is one of the better times to visit Chillán Viejo for general sightseeing.

What to pack for Chillán Viejo in April

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

In April, Chillán Viejo sees daytime highs around 20°C and nights near 8°C. Little to plan around — just the basics. About 5 days see rain.

UV index in Chillán Viejo in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chillán Viejo peaks around January 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateVery highExtremeJan 14UV 12Jun 16UV 2
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar9Very high
Apr5Moderate
May3Moderate
Jun2Moderate
Jul3Moderate
Aug3Moderate
Sep5High
Oct8Very high
Nov10Extreme
Dec12Extreme

Air quality in Chillán Viejo 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 Chillán Viejo is worst in April — around 40 µg/m³ PM2.5 (poor), about 4.6× the cleanest month (December, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateGoodApr 1539 µg/m³Dec 129 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb25Moderate
Mar30Moderate
Apr40Poor
May27Moderate
Jun15Moderate
Jul15Moderate
Aug14Moderate
Sep13Moderate
Oct12Moderate
Nov10Good
Dec9Good
Location & terrain

Where is Chillán Viejo?

Chillán Viejo sits at 36.6°S, 72.1°W, 117 m above sea level, in Chile. The nearest listed city is Chillán, 3.0 km away.

Topography around Chillán Viejo

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

Within 3 km, the terrain around Chillán Viejo has only modest variations in elevation — a maximum elevation change of 50 m around an average of 105 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 189 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,164 m.

The land around Chillán Viejo is covered by artificial surfaces (39%), grassland (25%) and cropland (20%) within 3 km, trees (33%), grassland (33%) and cropland (26%) within 16 km, and trees (50%) and grassland (26%) within 80 km.

3 km
50 m
16 km
189 m
80 km
3,164 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Chillán 3.0 km · Coihueco 27 km · San Carlos 27 km · Quillón 33 km · Cabrero 52 km · Coelemu 53 km · Parral 60 km · Tomé 74 km

Chile travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
220 V · 50 Hz
Prices
≈ 48% of US
price level, 2025
GDP per capita
$17,995
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
6.3
per 100k, 2023
Road deaths
14.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 517
Religion
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to 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 Chillán Viejo (-36.623°, -72.1319°, elevation 117 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).