Portoviejo weather in December

In December, Portoviejo sees average daytime highs of 29°C and overnight lows near 22°C, with 61 mm of rain across 10.1 wet days and about 12.1 hours of daylight. It is the 3rd-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 3% of the time in December, and the air most often feels muggy.

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 Portoviejo's 4th-clearest and 6th-windiest month. For the whole year in context, see Portoviejo's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
22°
7th coldest
Rainfall
61 mm
10.1 wet days
Daylight
12 h 06 min
6:16 AM – 6:20 PM
Cloud cover
81%
4th clearest
Wind
8 km/h
6th windiest
Solar energy
4.33 kWh/m²
Travel score
5.0
out of 10

Portoviejo is city in Ecuador, capital of the Manabí Province.

Air quality
Good
PM10 24.6 µg/m³ · 2012
Density
6,822/km²
people per km²
Founded
1535

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 29°C through the month.

A typical December day in Portoviejo reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°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)
12922
22922
32922
42922
52922
62922
72922
82922
92922
102922
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222922
232923
242923
252923
262923
272923
282923
292923
302923
312923

How December really feels in Portoviejo

Once humidity and wind are folded in, December 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

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Portoviejo weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 23°13218.212.14.1
Feb29° / 23°25322.7123.4
Mar29° / 23°23423.1123.5
Apr29° / 23°15820.3123.7
May29° / 23°7514.3124.5
Jun28° / 22°327.911.95.6
Jul28° / 21°225.911.96.3
Aug28° / 21°144126.3
Sep28° / 21°205.1126.0
Oct29° / 21°184.5125.9
Nov29° / 21°224.3125.7
Dec29° / 22°6110.112.15.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11486
21486
31486
41486
51486
61387
71387
81387
91387
101387
111387
121387
131387
141387
151387
161387
171288
181288
191288
201288
211189
221189
231189
241189
251189
261189
271090
281090
291090
301090
311090

Chance of precipitation in December

Any precipitation

Portoviejo gets around 61 mm of rain over 10.1 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 33% and peaks near 46% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
121
222
323
424
525
626
727
827
928
1029
1129
1229
1330
1430
1531
1631
1732
1833
1933
2034
2135
2236
2337
2438
2539
2640
2741
2843
2944
3045
3146

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 73% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
1107911
298011
397912
488012
578013
678013
768113
868014
958114
1058015
1148016
1248016
1338017
1437918
1537819
1627820
1727721
1827523
1927424
2017326
2117227
2217029
2316930
2416732
2516633
2616435
2716237
2806139
2905941
3005743
3105545

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

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 6:10 AM to 6:23 AM, and sunset from 6:13 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:106:13
212.16:106:14
312.16:116:14
412.16:116:14
512.16:116:15
612.16:126:15
712.16:126:16
812.16:136:16
912.16:136:17
1012.16:136:17
1112.16:146:17
1212.16:146:18
1312.16:156:18
1412.16:156:19
1512.16:166:19
1612.16:166:20
1712.16:176:20
1812.16:176:21
1912.16:186:21
2012.16:186:22
2112.16:186:22
2212.16:196:23
2312.16:196:23
2412.16:206:24
2512.16:206:24
2612.16:216:24
2712.16:216:25
2812.16:226:25
2912.16:226:26
3012.16:236:26
3112.16:236:27

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.33 kWh/m².

For context, solar energy here swings from a low near 3.7 kWh/m² to a high of 4.65 kWh/m² in March across the year — December's 4.33 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
314.2Bright
Planning a trip in December

Hazard calendar for Portoviejo

In seasonPeak

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

Portoviejo's monsoon runs January–April, when most of the year's rain falls.

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

Is December a good time to visit Portoviejo?

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

5.0
Sightseeing
7th-best month of the year
6.5
Beach & pool
7th-best month of the year

December is a reasonable time to visit Portoviejo for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Portoviejo in December

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

In December, Portoviejo sees daytime highs around 29°C and nights near 22°C. Pack light clothes. Worth having: rain gear. About 10 days see rain.

light clothesrain gear

Sea temperature near Portoviejo in December

The nearest coast averages about 25°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 28 km away) is warmest in February at about 26°C and coldest in September near 24°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar26Warm
Apr26Warm
May26Warm
Jun26Warm
Jul25Warm
Aug25Warm
Sep24Warm
Oct25Warm
Nov25Warm
Dec25Warm

UV index in Portoviejo in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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 Portoviejo peaks around March 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 10UV 15Jul 14UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug11Extreme
Sep11Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Portoviejo 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 Portoviejo is worst in March — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (August, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateMar 1821 µg/m³Aug 1712 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb19Moderate
Mar22Moderate
Apr20Moderate
May17Moderate
Jun15Moderate
Jul13Moderate
Aug12Good
Sep13Moderate
Oct14Moderate
Nov19Moderate
Dec19Moderate
Location & terrain

Where is Portoviejo?

Portoviejo sits at 1.1°S, 80.5°W, 90 m above sea level, in Ecuador. The nearest listed city is Montecristi, 23 km away.

Topography around Portoviejo

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

Within 3 km, the terrain around Portoviejo has significant variations in elevation — a maximum elevation change of 251 m around an average of 88 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 634 m; within 80 km, large variations in elevation — a maximum elevation change of 846 m.

The land around Portoviejo is covered by trees (45%) and artificial surfaces (45%) within 3 km, trees (61%) and grassland (29%) within 16 km, and trees (42%), water (29%) and grassland (24%) within 80 km.

3 km
251 m
16 km
634 m
80 km
846 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Montecristi 23 km · Sucre 25 km · Manta 33 km · Jipijapa 35 km · Calceta 40 km · Bahía de Caráquez 51 km · Chone 56 km · Canoa 66 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 Portoviejo (-1.0576°, -80.4514°, elevation 90 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).