Ventanas weather in May

In May, Ventanas sees average daytime highs of 28°C and overnight lows near 22°C, with 840 mm of rain across 29.2 wet days and about 11.9 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 0% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of May to 11 h 54 min by month's end. Set against the rest of the year, May is Ventanas's 9th-clearest and 10th-windiest month. For the whole year in context, see Ventanas's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
22°
10th coldest
Rainfall
840 mm
29.2 wet days
Daylight
11 h 54 min
6:16 AM – 6:12 PM
Cloud cover
92%
9th clearest
Wind
3 km/h
10th windiest
Solar energy
2.88 kWh/m²
Travel score
3.4
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 May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical May day in Ventanas reaches about 28°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12823
22823
32823
42823
52823
62823
72823
82823
92823
102822
112822
122822
132822
142822
152822
162822
172822
182822
192822
202822
212822
222722
232722
242722
252722
262722
272722
282722
292722
302722
312722

Ventanas weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 5th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 1% of May, with mostly cloudy or overcast conditions the remaining 99%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1199
2199
3199
4199
5199
6199
7199
8199
9199
10199
11199
12199
13199
14199
15199
16199
17199
18199
19199
20199
21199
22199
23199
24199
25199
26199
27199
28199
29199
30199
31199

Chance of precipitation in May

Any precipitation

Ventanas gets around 840 mm of rain over 29.2 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 95% and peaks near 98% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
198
298
397
497
597
697
797
897
997
1097
1197
1296
1396
1496
1595
1695
1794
1894
1993
2093
2192
2292
2392
2492
2591
2691
2792
2892
2992
3092
3192

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 90% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
11927
21918
31918
41918
51918
61909
71909
81909
90919
1009010
1118910
1218910
1318910
1418910
151909
162899
172899
183898
194888
204897
215896
225896
236895
246904
257894
267903
277912
288902
298911
308911
318911

Wind in May

Winds average 3 km/h in May.

Across May, daily wind ranges from about 3 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
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm
313calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 hours at the start of May to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over May. Sunrise moves from 6:17 AM to 6:18 AM, and sunset from 6:14 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:176:14
211.96:166:13
311.96:166:13
411.96:166:13
511.96:166:13
611.96:166:13
711.96:166:13
811.96:166:13
911.96:166:13
1011.96:166:12
1111.96:166:12
1211.96:166:12
1311.96:166:12
1411.96:166:12
1511.96:166:12
1611.96:166:12
1711.96:166:12
1811.96:166:12
1911.96:166:12
2011.96:166:12
2111.96:166:12
2211.96:166:12
2311.96:176:12
2411.96:176:12
2511.96:176:12
2611.96:176:12
2711.96:176:13
2811.96:176:13
2911.96:176:13
3011.96:176:13
3111.96:186:13

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.88 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 — May's 2.88 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.0Moderate
23.0Moderate
33.0Moderate
43.0Moderate
53.0Moderate
63.0Moderate
73.0Moderate
82.9Moderate
92.9Moderate
102.9Moderate
112.9Moderate
122.9Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.9Moderate
172.9Moderate
182.9Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.9Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.8Moderate
302.8Moderate
312.8Moderate
Planning a trip in May

Hazard calendar for Ventanas

In seasonPeak

In May, 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 May a good time to visit Ventanas?

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

3.4
Sightseeing
8th-best month of the year
3.6
Beach & pool
6th-best month of the year

May is a weaker month for outdoor sightseeing in Ventanas.

What to pack for Ventanas in May

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

In May, Ventanas sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

UV index in Ventanas in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (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 May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May 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
May 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).