Macas weather in May

In May, Macas sees average daytime highs of 24°C and overnight lows near 17°C, with 429 mm of rain across 29.8 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 0% of the time in May, and the air most often feels humid.

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

Daytime high
24°
9th warmest
Overnight low
17°
6th coldest
Rainfall
429 mm
29.8 wet days
Daylight
11 h 54 min
6:12 AM – 6:06 PM
Cloud cover
86%
9th clearest
Wind
3 km/h
9th windiest
Solar energy
3.86 kWh/m²
Travel score
3.7
out of 10

Macas is city in Ecuador, capital of the Morona-Santiago Province.

Density
1,992/km²
people per km²
Founded
1563

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 24°C through the month.

A typical May day in Macas reaches about 24°C in the afternoon and slips back to 17°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 26°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12417
22417
32417
42417
52417
62417
72417
82417
92417
102417
112417
122417
132417
142417
152417
162417
172417
182417
192417
202417
212417
222417
232417
242317
252317
262317
272317
282317
292317
302317
312316

Macas weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 17°30327.612.14.0
Feb24° / 17°33525.512.13.9
Mar24° / 17°38230.5123.5
Apr24° / 17°39029123.6
May24° / 17°42929.811.93.7
Jun23° / 16°40328.911.93.6
Jul22° / 15°36929.111.93.7
Aug23° / 15°29327.811.94.0
Sep24° / 16°26328.2123.9
Oct24° / 16°29030.212.13.7
Nov24° / 17°3092912.13.6
Dec24° / 17°31429.312.13.8

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 3% of May, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1496
2496
3496
4496
5397
6397
7397
8397
9397
10397
11397
12397
13397
14397
15397
16397
17397
18397
19397
20397
21397
22397
23397
24397
25397
26397
27397
28397
29298
30298
31298

Chance of precipitation in May

Any precipitation

Macas gets around 429 mm of rain over 29.8 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 96% and peaks near 97% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
196
296
396
496
596
696
796
896
996
1096
1197
1297
1397
1497
1597
1697
1797
1897
1997
2097
2196
2296
2396
2496
2596
2696
2796
2896
2996
3096
3196

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 84% of days. Sticky, muggy-or-worse air turns up on roughly 14% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
118019
218118
318118
418118
518118
628117
728117
828117
928117
1028216
1128216
1228216
1328315
1428315
1528315
1628315
1728414
1828414
1928414
2028414
2128513
2228513
2328513
2428513
2518712
2618712
2718811
2818910
2918910
301909
311918

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 3 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
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 11 h 54 min at the start of May to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over May. Sunrise moves from 6:12 AM to 6:14 AM, and sunset from 6:07 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:126:07
211.96:126:07
311.96:126:07
411.96:126:07
511.96:126:07
611.96:126:06
711.96:126:06
811.96:126:06
911.96:126:06
1011.96:126:06
1111.96:126:06
1211.96:126:06
1311.96:126:06
1411.96:126:06
1511.96:126:06
1611.96:126:06
1711.96:126:06
1811.96:126:06
1911.96:126:06
2011.96:126:06
2111.96:126:06
2211.96:126:06
2311.96:126:06
2411.96:136:06
2511.96:136:06
2611.96:136:06
2711.96:136:06
2811.96:136:06
2911.96:136:06
3011.96:136:06
3111.96:146:06

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.86 kWh/m².

For context, solar energy here swings from a low near 3.45 kWh/m² to a high of 5.07 kWh/m² in October across the year — May's 3.86 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
14.0Moderate
24.0Moderate
34.0Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.9Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.8Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.8Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.7Moderate
303.7Moderate
313.7Moderate
Planning a trip in May

Is May a good time to visit Macas?

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

3.7
Sightseeing
6th-best month of the year
3.0
Beach & pool
10th-best month of the year

May is a weaker month for outdoor sightseeing in Macas.

What to pack for Macas in May

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

In May, Macas sees daytime highs around 24°C and nights near 17°C. Pack rain gear. Worth having: light clothes. About 30 days see rain.

rain gearlight clothes

UV index in Macas in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Macas peaks around February 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 12 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 17UV 16Aug 12UV 11
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar16Extreme
Apr12Extreme
May14Extreme
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov12Extreme
Dec12Extreme

Air quality in Macas 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 Macas is worst in February — around 29 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (July, 12 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateFeb 1929 µg/m³Jul 1113 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb29Moderate
Mar27Moderate
Apr22Moderate
May18Moderate
Jun14Moderate
Jul12Moderate
Aug20Moderate
Sep18Moderate
Oct21Moderate
Nov19Moderate
Dec20Moderate
Location & terrain

Where is Macas?

Macas sits at 2.3°S, 78.1°W, 1,315 m above sea level, in Ecuador. The nearest listed city is Guamote, 78 km away.

BanosCuencaPelileo

Topography around Macas

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

Within 3 km, the terrain around Macas has significant variations in elevation — a maximum elevation change of 570 m around an average of 1,028 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,203 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,093 m.

The land around Macas is covered by trees (70%) within 3 km, trees (94%) within 16 km, and trees (83%) within 80 km.

3 km
570 m
16 km
2,203 m
80 km
5,093 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Guamote 78 km · Puyo 92 km · Riobamba 93 km · Azogues 94 km · Gualaceo 98 km · Banos 107 km · Cuenca 117 km · Pelileo 118 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 Macas (-2.3074°, -78.1203°, elevation 1,315 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).