Ventanas weather in December

In December, Ventanas sees average daytime highs of 27°C and overnight lows near 22°C, with 568 mm of rain across 26.7 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 0% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of December to 12 h 06 min by month's end. Set against the rest of the year, December is Ventanas's 2nd-clearest and 5th-windiest month. For the whole year in context, see Ventanas's year-round climate.

Daytime high
27°
5th warmest
Overnight low
22°
7th coldest
Rainfall
568 mm
26.7 wet days
Daylight
12 h 06 min
6:12 AM – 6:16 PM
Cloud cover
89%
2nd clearest
Wind
4 km/h
5th windiest
Solar energy
3.11 kWh/m²
Travel score
3.7
out of 10

Ventanas is city of Los Ríos Province, Ecuador.

Density
3,972/km²
people per km²
Founded
1952

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical December day in Ventanas reaches about 27°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12822
22822
32822
42822
52822
62822
72822
82822
92822
102722
112722
122722
132722
142722
152722
162722
172722
182722
192722
202722
212722
222722
232722
242722
252722
262722
272722
282722
292722
302722
312722

Ventanas weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 22°9833012.13.3
Feb28° / 22°96727.4123.2
Mar28° / 23°94430123.1
Apr28° / 23°92328.9123.0
May28° / 22°84029.211.93.4
Jun26° / 21°54228.311.93.5
Jul26° / 21°50628.411.93.7
Aug26° / 20°35627.1123.8
Sep27° / 21°36526.9123.7
Oct27° / 21°29924.9124.0
Nov27° / 21°26721.612.14.3
Dec27° / 22°56826.712.13.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 2% of December, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1496
2397
3397
4397
5397
6397
7397
8397
9397
10397
11397
12397
13397
14298
15298
16298
17298
18298
19298
20298
21298
22298
23298
24298
25298
26298
27298
28298
29298
30298
31199

Chance of precipitation in December

Any precipitation

Ventanas gets around 568 mm of rain over 26.7 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 86% and peaks near 96% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
174
275
376
476
577
678
779
880
981
1081
1182
1283
1384
1485
1586
1686
1787
1888
1989
2090
2190
2291
2392
2493
2593
2694
2795
2895
2995
3096
3196

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 75% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1142552
2041572
3040582
4038602
5037621
6036631
7034651
8033661
9032671
10031681
11030691
12028711
13027721
14026731
15025741
16024751
17022771
18021781
19020791
20019801
21018811
22016831
23015841
24014842
25013852
26011872
27010882
2809883
2908893
3008893
3107903

Wind in December

Winds average 4 km/h in December.

Across December, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 06 min at the start of December to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:05 AM to 6:19 AM, and sunset from 6:10 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:056:10
212.16:066:10
312.16:066:11
412.16:066:11
512.16:076:12
612.16:076:12
712.16:086:12
812.16:086:13
912.16:086:13
1012.16:096:14
1112.16:096:14
1212.16:106:15
1312.16:106:15
1412.16:116:16
1512.16:116:16
1612.16:126:16
1712.16:126:17
1812.16:126:17
1912.16:136:18
2012.16:136:18
2112.16:146:19
2212.16:146:19
2312.16:156:20
2412.16:156:20
2512.16:166:21
2612.16:166:21
2712.16:176:22
2812.16:176:22
2912.16:186:23
3012.16:186:23
3112.16:196:23

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.11 kWh/m².

For context, solar energy here swings from a low near 2.75 kWh/m² to a high of 3.49 kWh/m² in November across the year — December's 3.11 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.3Moderate
73.3Moderate
83.2Moderate
93.2Moderate
103.2Moderate
113.2Moderate
123.2Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.1Moderate
173.1Moderate
183.1Moderate
193.1Moderate
203.0Moderate
213.0Moderate
223.0Moderate
233.0Moderate
243.0Moderate
253.0Moderate
263.0Moderate
272.9Moderate
282.9Moderate
292.9Moderate
302.9Moderate
312.9Moderate
Planning a trip in December

Hazard calendar for Ventanas

In seasonPeak

In December, Ventanas sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Ventanas's rainy season runs December–July, when most of the year's rain falls.

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

Is December a good time to visit Ventanas?

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

3.7
Sightseeing
4th-best month of the year
3.9
Beach & pool
3rd-best month of the year

December is a weaker month for outdoor sightseeing in Ventanas.

What to pack for Ventanas in December

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

In December, Ventanas sees daytime highs around 27°C and nights near 22°C. Pack light clothes and rain gear. About 27 days see rain.

light clothesrain gear

UV index in Ventanas in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ventanas peaks around March 10 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 16 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 10UV 14Jul 16UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr12Extreme
May12Extreme
Jun10Extreme
Jul10Very high
Aug11Extreme
Sep11Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Ventanas in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Ventanas is worst in November — around 47 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (January, 20 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorNov 1745 µg/m³Jan 2420 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb20Moderate
Mar22Moderate
Apr23Moderate
May21Moderate
Jun21Moderate
Jul21Moderate
Aug21Moderate
Sep23Moderate
Oct27Moderate
Nov47Poor
Dec30Moderate
Location & terrain

Where is Ventanas?

Ventanas sits at 1.4°S, 79.5°W, 371 m above sea level, in Ecuador. The nearest listed city is Vinces, 35 km away.

Topography around Ventanas

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

Within 3 km, the terrain around Ventanas has only modest variations in elevation — a maximum elevation change of 39 m around an average of 24 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,132 m; within 80 km, extreme variations in elevation — a maximum elevation change of 6,245 m.

The land around Ventanas is covered by trees (50%) and grassland (29%) within 3 km, grassland (48%) and trees (41%) within 16 km, and trees (47%) and grassland (34%) within 80 km.

3 km
39 m
16 km
1,132 m
80 km
6,245 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Vinces 35 km · Babahoyo 41 km · Montalvo 43 km · Quevedo 46 km · El Empalme 48 km · Balzar 50 km · Guaranda 54 km · Valencia 56 km

Ecuador travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 43% of US
price level, 2025
GDP per capita
$7,125
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
70%
of population, 2024
Homicide rate
45.7
per 100k, 2023
Road deaths
20.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 466
Religion
Roman Catholic 68%Protestant 19%none 8%other 2%

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 Ventanas (-1.4428°, -79.4627°, elevation 371 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).