Byblos in Spring
In spring (March, April and May), Byblos sees average daytime highs around 18°C and overnight lows near 9°C, with 173 mm of precipitation over about 23 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 13°C in early March to 23°C by late May. The sky is clear or mostly clear about 55% of the time across spring, and the air most often feels dry.
Spring is Byblos's 3rd-best season to visit on our travel score. For the whole year in context, see Byblos's year-round climate.
- Avg daytime high
- 18°C
- 3rd-warmest season
- Avg overnight low
- 9°C
- Precipitation
- 173 mm
- 23 wet days
- Avg wind
- 8 km/h
- Travel score
- 6.2
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Byblos in Spring
Over the season highs climb from about 13°C in early March to 23°C by late May.
A typical spring day in Byblos reaches about 18°C and drops to 9°C overnight. The warmest of the three months is May, the coolest March.
Byblos weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 11° / 3° | 126 | 13.7 | 3.6 | 10 | 2.5 |
| Feb | 11° / 4° | 121 | 12 | 3.4 | 10.7 | 2.8 |
| Mar | 14° / 6° | 99 | 10.9 | 1.4 | 11.7 | 4.2 |
| Apr | 18° / 9° | 49 | 7.1 | 0.2 | 12.8 | 6.3 |
| May | 22° / 13° | 24 | 4.5 | 0 | 13.8 | 8.1 |
| Jun | 25° / 16° | 3 | 0.6 | 0 | 14.2 | 9.3 |
| Jul | 28° / 19° | 0 | 0.1 | 0 | 14 | 8.8 |
| Aug | 28° / 19° | 1 | 0.3 | 0 | 13.3 | 8.3 |
| Sep | 27° / 17° | 6 | 1.6 | 0 | 12.2 | 8.8 |
| Oct | 23° / 14° | 30 | 5.8 | 0 | 11.1 | 8.1 |
| Nov | 18° / 9° | 69 | 8 | 0.3 | 10.2 | 6.2 |
| Dec | 13° / 5° | 109 | 11.4 | 1.4 | 9.8 | 3.7 |
Cloud cover in Spring
The sky is clear or mostly clear about 55% of the time across spring.
Chance of precipitation in Spring
Byblos gets around 173 mm of rain and snow over 23 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 8 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 12 min in early March to 14 h 06 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.3 kWh/m².
Hazard calendar for Byblos
In spring, Byblos overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Byblos's rainy season runs November–March, when most of the year's rain falls.
Is spring a good time to visit Byblos?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Byblos for sightseeing.
What to pack for Byblos in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Byblos sees daytime highs around 18°C and nights near 9°C. Pack sun protection. Worth having: a warm layer and rain gear. About 23 days see rain.
Sea temperature near Byblos in Spring
The nearest coast averages about 19°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 28°C and coldest in February 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 19 | 17 | 17 | 19 | 21 | 25 | 27 | 28 | 28 | 26 | 23 | 21 |
| Comfort | Cool | Cool | Cool | Cool | Refreshing | Warm | Warm | Tropical | Warm | Warm | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 19 | Cool |
| Feb | 17 | Cool |
| Mar | 17 | Cool |
| Apr | 19 | Cool |
| May | 21 | Refreshing |
| Jun | 25 | Warm |
| Jul | 27 | Warm |
| Aug | 28 | Tropical |
| Sep | 28 | Warm |
| Oct | 26 | Warm |
| Nov | 23 | Refreshing |
| Dec | 21 | Refreshing |
UV index in Byblos in Spring
Clear-sky midday UV across spring averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Byblos 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 4 | 5 | 7 | 8 | 11 | 10 | 10 | 8 | 6 | 4 | 3 |
| Level | Moderate | Moderate | Moderate | High | Very high | Extreme | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 10 | Very high |
| Aug | 10 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Byblos in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Byblos is worst in November — around 58 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (July, 31 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 52 | 57 | 52 | 54 | 44 | 35 | 31 | 31 | 41 | 51 | 58 | 57 |
| Level | Poor | Unhealthy | Poor | Poor | Poor | Poor | Moderate | Moderate | Poor | Poor | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 52 | Poor |
| Feb | 57 | Unhealthy |
| Mar | 52 | Poor |
| Apr | 54 | Poor |
| May | 44 | Poor |
| Jun | 35 | Poor |
| Jul | 31 | Moderate |
| Aug | 31 | Moderate |
| Sep | 41 | Poor |
| Oct | 51 | Poor |
| Nov | 58 | Unhealthy |
| Dec | 57 | Unhealthy |
Where is Byblos?
Byblos sits at 34.1°N, 35.6°E, 33 m above sea level, in Lebanon. The nearest listed city is Jounieh, 16 km away.
Topography around Byblos
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Byblos.
Within 3 km, the terrain around Byblos has significant variations in elevation — a maximum elevation change of 494 m around an average of 90 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,768 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,068 m.
The land around Byblos is covered by water (41%), trees (29%) and artificial surfaces (21%) within 3 km, water (47%) and trees (37%) within 16 km, and grassland (35%) and water (34%) within 80 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
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 Byblos (34.1211°, 35.6481°, elevation 33 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.