Entroncamento weather in December

In December, Entroncamento sees average daytime highs of 14°C and overnight lows near 7°C, with 83 mm of rain across 9.1 wet days and about 9.3 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 14°C through the month. The sky is clear or mostly clear about 35% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 24 min at the start of December to 9 h 18 min by month's end. Set against the rest of the year, December is Entroncamento's 12th-clearest and 8th-windiest month. For the whole year in context, see Entroncamento's year-round climate.

Daytime high
14°
11th warmest
Overnight low
3rd coldest
Rainfall
83 mm
9.1 wet days
Daylight
9 h 12 min
7:53 AM – 5:07 PM
Cloud cover
57%
12th clearest
Wind
12 km/h
8th windiest
Solar energy
1.9 kWh/m²
Travel score
4.3
out of 10

Entroncamento 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 14°C through the month.

A typical December day in Entroncamento reaches about 14°C in the afternoon and slips back to 7°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 17°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1157
2157
3157
4157
5157
6157
7157
8147
9147
10147
11147
12147
13147
14147
15147
16147
17147
18147
19147
20147
21147
22147
23147
24147
25147
26147
27146
28146
29146
30146
31146

Entroncamento weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 759.39.54.1
Feb15° / 577.410.44.9
Mar18° / 648.311.76.2
Apr20° / 10°659.3136.4
May23° / 12°60814.17.3
Jun27° / 15°163.414.77.9
Jul30° / 16°51.414.56.9
Aug30° / 16°92.313.56.6
Sep27° / 15°394.912.37.5
Oct22° / 13°899.5116.8
Nov17° / 859.79.85.5
Dec14° / 839.19.34.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34852
44753
54654
64654
74654
84654
94654
104654
114555
124555
134555
144555
154555
164555
174555
184555
194654
204753
214753
224753
234753
244753
254654
264654
274654
284654
294753
304753
314753

Chance of precipitation in December

Any precipitation

Entroncamento gets around 83 mm of rain over 9.1 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 30% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
229
328
428
528
627
727
827
927
1027
1127
1228
1328
1428
1528
1629
1729
1829
1929
2030
2130
2231
2331
2432
2532
2632
2733
2833
2933
3033
3133

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 94% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1946
2946
3946
4946
5955
6955
7955
8955
9955
10955
11955
12955
13955
14955
15955
16946
17946
18946
19946
20946
21946
22946
23946
24946
25946
26946
27946
28946
29946
30946
31946

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912calm
3012calm
3112calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 24 min at the start of December to 9 h 18 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 7:41 AM to 8:00 AM, and sunset from 5:06 PM to 5:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.47:415:06
29.47:425:06
39.47:435:06
49.47:445:06
59.37:455:06
69.37:465:06
79.37:465:06
89.37:475:06
99.37:485:06
109.37:495:06
119.37:505:06
129.37:505:06
139.37:515:06
149.27:525:06
159.27:535:07
169.27:535:07
179.27:545:07
189.27:545:08
199.27:555:08
209.27:555:08
219.27:565:09
229.27:565:09
239.27:575:10
249.27:575:10
259.27:585:11
269.27:585:11
279.27:585:12
289.27:595:13
299.27:595:13
309.27:595:14
319.38:005:15

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.9 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.9 kWh/m² to a high of 7.57 kWh/m² in July across the year — December's 1.9 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.1Moderate
22.0Moderate
32.0Moderate
42.0Moderate
52.0Dim
62.0Dim
72.0Dim
82.0Dim
91.9Dim
101.9Dim
111.9Dim
121.9Dim
131.9Dim
141.9Dim
151.9Dim
161.9Dim
171.9Dim
181.9Dim
191.9Dim
201.9Dim
211.9Dim
221.9Dim
231.9Dim
241.9Dim
251.9Dim
261.9Dim
271.9Dim
281.9Dim
291.9Dim
301.9Dim
311.9Dim
Planning a trip in December

Is December a good time to visit Entroncamento?

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

4.3
Sightseeing
11th-best month of the year
0.0
Beach & pool
11th-best month of the year

December is a reasonable time to visit Entroncamento for sightseeing.

What to pack for Entroncamento in December

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

In December, Entroncamento sees daytime highs around 14°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

Sea temperature near Entroncamento in December

The nearest coast averages about 15°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 59 km away) is warmest in August at about 19°C and coldest in February near 14°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

12°14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May16Cool
Jun18Cool
Jul18Cool
Aug19Cool
Sep19Cool
Oct18Cool
Nov17Cool
Dec15Cool

UV index in Entroncamento 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 Entroncamento peaks around July 15 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 15UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar6High
Apr7Very high
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Entroncamento 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 Entroncamento is worst in August — around 26 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodAug 1525 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar12Moderate
Apr10Good
May8Good
Jun17Moderate
Jul17Moderate
Aug26Moderate
Sep12Good
Oct19Moderate
Nov7Good
Dec8Good
Location & terrain

Where is Entroncamento?

Entroncamento sits at 39.5°N, 8.5°W, 34 m above sea level, in Portugal. The nearest listed city is Torres Novas, 7.0 km away.

Topography around Entroncamento

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

Within 3 km, the terrain around Entroncamento has only modest variations in elevation — a maximum elevation change of 131 m around an average of 46 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 655 m; within 80 km, large variations in elevation — a maximum elevation change of 1,199 m.

The land around Entroncamento is covered by grassland (33%), trees (26%) and artificial surfaces (22%) within 3 km, trees (40%) and grassland (39%) within 16 km, and trees (46%) and grassland (35%) within 80 km.

3 km
131 m
16 km
655 m
80 km
1,199 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Torres Novas 7.0 km · Tomar 16 km · Monsanto 21 km · Santarém 32 km · Leiria 42 km · Alcobaça 45 km · Marinha Grande 51 km · Pombal 52 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 Entroncamento (39.4667°, -8.4667°, elevation 34 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).