Climate averages 1991–2020

Aley weather
in December.

A cool, wet month: the 10th warmest and the 10th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 12.8°C Daytime mean, December

Average low 4.0°C Night-time mean, December

Rainfall 105 mm 10 days with ≥1 mm

Daylight 10 h Sunrise to sunset, per day

December is a cool month in Aley: daytime highs average 12.8°C and nights cool to about 4.0°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 105 mm of rain on roughly 10 days, which makes December a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 57 min on an average December day.

The nearest other city in this atlas is Beirut (13 km away). In December its highs average 17.7°C, 4.9°C warmer than Aley, with 133 mm of rain.

Among the 8 cities listed in Lebanon, Aley ranks 7th of 8 for the warmest December highs and 3rd of 8 for the driest December (rainfall, lowest first). The mean December high of those 8 cities is 16.0°C; Aley is 3.2°C cooler than that mean.

From December to January, average highs fall by 2.2°C to 10.6°C, and monthly rainfall rises from 105 mm to 123 mm.

The annual picture

December in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Aley climate table

1991–2020

Monthly climate averages for Aley, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	10.6°C2.0°C	2.0°C	123	12.7	10.210 h
February	11.4°C2.2°C	2.2°C	123	11.3	10.911 h
March	14.2°C4.3°C	4.3°C	94	9.8	12.012 h
April	18.0°C7.3°C	7.3°C	46	6.3	13.013 h
May	22.2°C11.3°C	11.3°C	18	3.4	13.914 h
June	25.7°C15.0°C	15.0°C	2.7	0.9	14.414 h
July	28.1°C17.4°C	17.4°C	0.6	0.2	14.214 h
August	28.4°C18.0°C	18.0°C	0.8	0.3	13.413 h
September	26.7°C16.3°C	16.3°C	5.7	1.3	12.412 h
October	23.3°C12.9°C	12.9°C	26	4.8	11.411 h
November	17.5°C7.7°C	7.7°C	65	7.6	10.410 h
December, selected	12.8°C4.0°C	4.0°C	105	10.4	10.010 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

December in nearby cities

Distance from Aley

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Aley) is explained once on the Aley year overview and on the Sources, method and limits page.