Covilhã weather in December

In December, Covilhã sees average daytime highs of 10°C and overnight lows near 4°C, with 124 mm of precipitation across 10.5 wet days and about 9.2 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 10°C through the month. The sky is clear or mostly clear about 32% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 18 min at the start of December to 9 h 12 min by month's end. Set against the rest of the year, December is Covilhã's 12th-clearest and 5th-windiest month. For the whole year in context, see Covilhã's year-round climate.

Daytime high
10°
11th warmest
Overnight low
3rd coldest
Precipitation
124 mm
10.5 wet days
Daylight
9 h 06 min
7:52 AM – 5:00 PM
Cloud cover
61%
12th clearest
Wind
9 km/h
5th windiest
Solar energy
1.74 kWh/m²
Travel score
2.4
out of 10

Covilhã is human settlement in Portugal.

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 10°C through the month.

A typical December day in Covilhã reaches about 10°C in the afternoon and slips back to 4°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 13°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
1114
2114
3114
4114
5114
6114
7114
8114
9114
10114
11114
12104
13104
14104
15104
16104
17104
18104
19104
20104
21104
22104
23104
24104
25104
26103
27103
28103
29103
30103
31103

Covilhã weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 11110.40.79.52.2
Feb12° / 788.40.710.43.0
Mar15° / 949.90.211.74.4
Apr16° / 9511.60.1135.0
May20° / 10°8910.7014.26.3
Jun25° / 13°315.5014.87.8
Jul28° / 16°143.2014.67.4
Aug28° / 16°193.9013.67.3
Sep24° / 13°636.6012.37.6
Oct18° / 10°14411.2010.95.8
Nov13° / 12111.30.29.83.6
Dec10° / 12410.50.29.22.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34159
44159
54258
64258
74258
84258
94258
104258
114357
124357
134258
144159
154258
164258
174357
184258
194258
204357
214258
224159
234159
244060
254060
264060
274060
284060
294060
304060
314060

Chance of precipitation in December

Any precipitation

Covilhã gets around 124 mm of rain and snow over 10.5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 34% and peaks near 37% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
234
334
433
533
633
732
832
932
1033
1133
1233
1333
1433
1533
1634
1734
1834
1934
2035
2135
2235
2336
2436
2536
2637
2737
2837
2937
3037
3137

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 18 min at the start of December to 9 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:40 AM to 7:58 AM, and sunset from 5:00 PM to 5:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.37:405:00
29.37:415:00
39.37:415:00
49.37:424:59
59.37:434:59
69.37:444:59
79.27:454:59
89.27:464:59
99.27:474:59
109.27:484:59
119.27:484:59
129.27:495:00
139.27:505:00
149.27:515:00
159.27:515:00
169.17:525:00
179.17:535:01
189.17:535:01
199.17:545:01
209.17:545:02
219.17:555:02
229.17:555:03
239.17:565:03
249.17:565:04
259.17:565:04
269.17:575:05
279.17:575:05
289.17:575:06
299.27:585:07
309.27:585:07
319.27:585:08

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.74 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.74 kWh/m² to a high of 7.61 kWh/m² in July across the year — December's 1.74 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.9Dim
21.9Dim
31.9Dim
41.9Dim
51.8Dim
61.8Dim
71.8Dim
81.8Dim
91.8Dim
101.8Dim
111.8Dim
121.8Dim
131.8Dim
141.8Dim
151.7Dim
161.7Dim
171.7Dim
181.7Dim
191.7Dim
201.7Dim
211.7Dim
221.7Dim
231.7Dim
241.7Dim
251.7Dim
261.7Dim
271.7Dim
281.7Dim
291.7Dim
301.7Dim
311.7Dim
Planning a trip in December

Hazard calendar for Covilhã

In seasonPeak

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

Covilhã's rainy season runs October–May, 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 Covilhã?

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

2.4
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Covilhã.

What to pack for Covilhã in December

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

In December, Covilhã sees daytime highs around 10°C and nights near 4°C. Pack a warm layer. Worth having: rain gear. About 11 days see rain.

a warm layerrain gear

UV index in Covilhã in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Covilhã peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 16UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar6High
Apr7High
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Covilhã 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 Covilhã is worst in August — around 40 µg/m³ PM2.5 (poor), about 6.0× the cleanest month (November, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateModerateGoodAug 1736 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar13Moderate
Apr10Good
May8Good
Jun10Good
Jul11Good
Aug40Poor
Sep13Moderate
Oct26Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Covilhã?

Covilhã sits at 40.3°N, 7.5°W, 700 m above sea level, in Portugal. The nearest listed city is Guarda, 35 km away.

Topography around Covilhã

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

Within 3 km, the terrain around Covilhã has large variations in elevation — a maximum elevation change of 942 m around an average of 716 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,614 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,975 m.

The land around Covilhã is covered by grassland (42%) and trees (33%) within 3 km, grassland (53%) and trees (35%) within 16 km, and grassland (47%) and trees (46%) within 80 km.

3 km
942 m
16 km
1,614 m
80 km
1,975 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Guarda 35 km · Sequeira 38 km · Castelo Branco 51 km · Viseu 54 km · São Paulo de Frades 76 km · Santo António dos Olivais 77 km · Eiras 77 km · Coimbra 78 km

Portugal travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$32,082
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
95%
of population, 2024
Homicide rate
0.7
per 100k, 2022
Road deaths
8.2
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 612
Religion
Catholic 68%not applicable 13%no religion 12%no response 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 Covilhã (40.2811°, -7.505°, elevation 700 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).