Monthly weather averages & travel planning

Asia › 🇱🇧 Lebanon › Beirut
Updated: March 2026
December is a fair time to visit Beirut (5/10). With 8 daily sunshine hours and only 11 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 12th sunniest of the year in Beirut. Culture-focused travellers and those who prefer lighter crowds will find December a practical choice, with prices running lower than peak May without sacrificing all the good weather. January offers a similar profile at lower hotel rates if dates are flexible. The main practical note: Beirut's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: accommodation is generally available without long lead times, and flight prices are typically lower than peak season. Flexible travellers will find the best deals by booking 2-4 weeks ahead. Mid-week arrivals consistently unlock lower hotel rates than weekend check-ins.
Beirut's December weather is shaped by atmospheric forces that make the data more than just numbers. The 18°C average high reflects a transitional pressure pattern where mid-latitude westerlies alternately bring mild maritime air and cooler polar intrusions. As a result, 8 daily sunshine hours are recorded on average, and rainfall of 108mm is distributed across approximately 11 days because precipitation events tend to be frequent but short-lived.
18°C
64°F
Avg High
10°C
50°F
Avg Low
11 days
108 mm total
Rain Days
8h
per day avg
Sunshine
70%
Moderate
Humidity
The 8°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. Humidity averages 70%, which is comfortable for most visitors. On warmer days, lighter fabrics help with the mild stickiness in the afternoon. The UV index of 2 is low, meaning sun exposure is minimal concern and sunscreen is largely optional. Winds are calm at an average 13 km/h, so wind-chill is not a factor in planning your clothing. In Fahrenheit: 64°F average high, 50°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Packing for Beirut in December means dressing for 18°C days and 10°C evenings. A mid-weight jacket over a sweater handles 18°C daytime temperatures; the combination stays comfortable all day without overheating. Evening temperatures settle at 10°C, a modest 8°C drop that a light cardigan or denim jacket covers. Comfortable walking trainers are the versatile choice for both outdoor sightseeing and indoor venues. A compact foldable umbrella weighs almost nothing and earns its keep across 11 potential rainy days.
Local tip: Temple and religious site visits require covered shoulders and knees in most of Beirut's heritage areas. A lightweight scarf or sarong weighs almost nothing and solves the problem instantly.
December has no major festivals or public holidays in Beirut, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
Based on 18°C average highs and 11 rainy days
December in Beirut reflects a mid-latitude climate pattern, with temperatures averaging 18°C by day and 10°C overnight. The city sits at 34 degrees north latitude, where the balance between solar radiation and heat loss drives conditions that are neither extreme nor static. Conditions occupy the comfortable middle band of the annual temperature range, where outdoor activity is feasible without the extremes of midsummer heat or midwinter cold. Day-to-night temperature variation of 8°C is moderate and manageable with a single mid-layer. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Beirut in December
December ranks 12th sunniest of the year in Beirut, with an average 8 daily sunshine hours. The driest months are July, August, and June. July is the hottest month (31°C avg high); January is the coolest (16°C). From here, temperatures fall 2°C into January. Compared to last month (November: 22°C high, 8 rain days), December is cooler and wetter. December is one of the least sunny months, but that often means lower prices and fewer fellow tourists.
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 16°C | 8°C | 13 | 9h | View |
| February | 16°C | 8°C | 11 | 9h | View |
| March | 19°C | 10°C | 10 | 11h | View |
| April | 22°C | 13°C | 7 | 12h | View |
| May | 26°C | 16°C | 4 | 13h | View |
| June | 29°C | 20°C | 1 | 13h | View |
| July | 31°C | 22°C | 0 | 13h | View |
| August | 31°C | 23°C | 0 | 13h | View |
| September | 30°C | 21°C | 1 | 12h | View |
| October | 27°C | 18°C | 5 | 11h | View |
| November | 22°C | 13°C | 8 | 9h | View |
| December | 18°C | 10°C | 11 | 8h | View |
January
13 rain days, 9h sun
February
11 rain days, 9h sun
March
10 rain days, 11h sun
April
7 rain days, 12h sun
May
4 rain days, 13h sun
June
1 rain days, 13h sun
July
0 rain days, 13h sun
August
0 rain days, 13h sun
September
1 rain days, 12h sun
October
5 rain days, 11h sun
November
8 rain days, 9h sun
December
11 rain days, 8h sun
Cities within 500 km with comparable weather conditions
Data Sources for Beirut
Climate normals represent 30-year averages (1991-2020). Individual years may vary.