Aley weather in December

In December, Aley sees average daytime highs of 17°C and overnight lows near 8°C, with 105 mm of rain across 10.4 wet days and about 9.8 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 18°C in the first days to 16°C by the end. The sky is clear or mostly clear about 48% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of December to 9 h 48 min by month's end. Set against the rest of the year, December is Aley's 9th-clearest and 4th-windiest month. For the whole year in context, see Aley's year-round climate.

Daytime high
17°
10th warmest
Overnight low
3rd coldest
Rainfall
105 mm
10.4 wet days
Daylight
9 h 48 min
6:41 AM – 4:27 PM
Cloud cover
43%
9th clearest
Wind
8 km/h
4th windiest
Solar energy
2.6 kWh/m²
Travel score
5.5
out of 10

Aley is town in Lebanon.

Density
15,222/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 18°C in the first days to 16°C by the end.

A typical December day in Aley reaches about 17°C in the afternoon and slips back to 8°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 21°C. Set against its neighbours, December runs about 5°C cooler than November and about 2°C warmer than January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11910
21910
3189
4189
5189
6189
7189
8189
9179
10179
11179
12178
13178
14178
15178
16168
17168
18168
19168
20168
21168
22168
23168
24168
25168
26167
27167
28167
29167
30157
31157

Aley weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan15° / 12312.7104.3
Feb15° / 12111.210.74.7
Mar18° / 949.811.76.0
Apr21° / 12°466.312.87.4
May25° / 15°183.413.78.5
Jun28° / 19°30.914.28.2
Jul30° / 21°10.2146.9
Aug31° / 22°10.313.36.6
Sep29° / 20°61.312.27.2
Oct27° / 17°264.811.17.9
Nov22° / 12°657.610.27.4
Dec17° / 10510.49.85.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 33%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26832
36832
46733
56733
66733
76634
86634
96634
106634
116634
126634
136535
146535
156634
166634
176634
186733
196733
206733
216733
226832
236931
246931
256931
266931
276931
286832
296832
306733
316733

Chance of precipitation in December

Any precipitation

Aley gets around 105 mm of rain over 10.4 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 34% and peaks near 39% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
129
230
330
431
532
633
733
834
935
1035
1135
1236
1336
1436
1535
1635
1735
1835
1934
2034
2134
2233
2333
2434
2534
2635
2735
2836
2937
3038
3139

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 (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 54 min at the start of December to 9 h 48 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 6:30 AM to 6:47 AM, and sunset from 4:25 PM to 4:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.96:304:25
29.96:314:25
39.96:324:25
49.96:324:25
59.96:334:25
69.86:344:25
79.86:354:25
89.86:354:25
99.86:364:25
109.86:374:25
119.86:384:25
129.86:384:26
139.86:394:26
149.86:404:26
159.86:404:26
169.86:414:27
179.86:414:27
189.86:424:27
199.86:434:28
209.86:434:28
219.86:444:29
229.76:444:29
239.86:454:30
249.86:454:30
259.86:454:31
269.86:464:31
279.86:464:32
289.86:464:32
299.86:474:33
309.86:474:34
319.86:474:34

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.6 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.6 kWh/m² to a high of 7.81 kWh/m² in June across the year — December's 2.6 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.8Moderate
22.8Moderate
32.8Moderate
42.8Moderate
52.7Moderate
62.7Moderate
72.7Moderate
82.7Moderate
92.6Moderate
102.6Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.6Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.5Moderate
222.6Moderate
232.6Moderate
242.6Moderate
252.6Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.6Moderate
Planning a trip in December

Hazard calendar for Aley

In seasonPeak

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

Aley's rainy season runs November–March, 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 Aley?

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

5.5
Sightseeing
10th-best month of the year
1.2
Beach & pool
10th-best month of the year

December is a reasonable time to visit Aley for sightseeing.

What to pack for Aley in December

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

In December, Aley sees daytime highs around 17°C and nights near 8°C. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Aley in December

The nearest coast averages about 21°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 22 km away) is warmest in August at about 28°C and coldest in March near 17°C.

It's comfortable for a long swim from May 3 to Dec 23 — about 7.7 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan18Cool
Feb18Cool
Mar17Cool
Apr19Cool
May21Refreshing
Jun25Warm
Jul27Warm
Aug28Tropical
Sep28Warm
Oct26Warm
Nov23Refreshing
Dec21Refreshing

UV index in Aley in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Aley peaks around June 21 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 21UV 10Jan 11UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun11Extreme
Jul10Very high
Aug10Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Aley 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 Aley is worst in April — around 45 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (August, 19 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateApr 1544 µg/m³Aug 1919 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb34Moderate
Mar39Poor
Apr45Poor
May38Poor
Jun28Moderate
Jul21Moderate
Aug19Moderate
Sep20Moderate
Oct23Moderate
Nov28Moderate
Dec26Moderate
Location & terrain

Where is Aley?

Aley sits at 33.8°N, 35.6°E, 878 m above sea level, in Lebanon. The nearest listed city is Beirut, 13 km away.

BeirutRa’s BayrūtJouniehZahleJezzineSidonByblosGhazieh

Topography around Aley

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

Within 3 km, the terrain around Aley has large variations in elevation — a maximum elevation change of 838 m around an average of 718 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,945 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,079 m.

The land around Aley is covered by trees (53%) and artificial surfaces (22%) within 3 km, trees (47%) within 16 km, and grassland (38%) and water (29%) within 80 km.

3 km
838 m
16 km
1,945 m
80 km
3,079 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Beirut 13 km · Ra’s Bayrūt 15 km · Jounieh 20 km · Zahle 28 km · Jezzine 29 km · Sidon 35 km · Byblos 35 km · Ghazieh 38 km

Lebanon travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type A / B / C / D / G
220 V · 50 Hz
Prices
≈ 38% of US
price level, 2024
GDP per capita
$4,473
2024
Happiness
3.7 / 10
World Happiness, 2025
Safe drinking water
48%
of population, 2024
Homicide rate
2.2
per 100k, 2020
Road deaths
16.4
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 477
Religion
Muslim 68%Christian 32%Druze 5%

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 Aley (33.8053°, 35.6°, elevation 878 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).