Climate and monthly weather forecast
Jounieh, Lebanon

A city on Lebanon's Mediterranean coastline, Jounieh enjoys climate conditions typical of a Mediterranean, hot summer, according to the Köppen climate classification. Distinguished as type Csa, the climate sees a stark variation, swinging from cool, wet winters to hot, dry summers.

Encompassing the year, the sea temperature oscillates between 17.7°C (63.9°F) and 28.6°C (83.5°F). It can be observed that these temperatures start to rise in April, from 18.7°C (65.7°F) to a peak of 28.6°C (83.5°F) in August, and then drop down to 20.2°C (68.4°F) in December. Daylight hours mirror this trend, starting from 10.2 hours in January, increasing to a maximum of 14.4 hours in June, and then reducing to 9.9 hours by December.

Notably, a unique aspect of Jounieh's weather is the relatively high summer sea temperatures, reaching up to 28.6°C (83.5°F), and extended daylight hours, which peak in summer.

Based on the climate data, the prime time for visiting Jounieh would lie from June to October. During these months, the sea temperature ranges between a comfortable 25.1°C (77.2°F) and 28.1°C (82.6°F), making it ideal for beach activities and water sports. In tandem, the daylight hours are high, between 14.4 and 11.3 hours, ensuring plenty of sunshine for outdoor exploration and sightseeing.

The winter months of January to March are possibly the least favorable for a visit to Jounieh. During this time, the sea temperature goes down to between 18.6°C (65.5°F) and 17.7°C (63.9°F), potentially detering any water-based activities. Moreover, daylight hours also see a slump, ranging just from 10.2 to 12 hours, constricting the time window for any outdoor adventures.

Spring in Jounieh, spanning from March to May, offers moderate weather conditions. Sea temperatures start to ascend, rising from 17.7°C (63.9°F) in March to 21.6°C (70.9°F) by May. Coinciding with this rise, daylight hours also witness a steady increase, varying from 12 hours in March to a commendable 13.9 hours in May.

Summers in Jounieh are typically hot and dry as are most Mediterranean climates. The sea temperatures show an upward tendency and stretch from 25.1°C (77.2°F) in June to a climate-high of 28.6°C (83.5°F) in August. In these sunlit months, daylight hours stay high, fluctuating between 14.4 and 13.4 hours, providing ample sunlight.

Autumn in Jounieh is signaled by the sea temperatures beginning their descent, falling from 28.1°C (82.6°F) in September to 22.7°C (72.9°F) by November. The hours of daylight mirror this downward trend, dropping from 12.4 hours in September to 10.4 hours by November, but nonetheless ensuring reasonably good lighting for outside activities.

Winter in Jounieh is marked by the chill of the sea which drops to its annual low from December to February, fluctuating between 20.2°C (68.4°F) and 18.6°C (65.5°F). Alongside, daylight hours also hit their yearly low, wavering from 9.9 hours in December, slowly climbing to 11 hours by the end of February, hinting at the onset of spring.

The start of the year in Jounieh, Lebanon sees moderately cold sea temperatures, sitting at 18.6°C (65.5°F), which creates a cooler atmosphere in the coastal city compared to its summer warmth. This transpires an overall coolness, making outdoor activities less vibrant compared to the previous months. Weather in January »

The chill from January persists into February with the sea temperature decreasing slightly to 17.7°C (63.9°F). This reduction in temperature further calms the vibrant city. Notably, daylight hours during this month begin to increase marginally initiating a gradual welcoming of the spring season. Weather in February »

Transitioning into March, Jounieh witnesses no change in the sea temperature from February, maintaining itself at 17.7°C (63.9°F). This consistency in temperature is a harbinger of the enduring winter season, even as daylight hours continue to increase. Weather in March »

April sees a much-anticipated rise in the sea temperature to 18.7°C (65.7°F). This increase signals the arrival of warmer days and a shift from the prolonged winter coolness. Longer daylight hours, a result of the spring season, put a spotlight on the city’s beautiful landscapes. Weather in April »

Sea temperatures in Jounieh witness a significant rise reaching 21.6°C (70.9°F) in May. This warming of the sea is a reminder of the anticipated summer heat. With the advent of this expected rise, the city buzzes with life as locals and tourists enjoy the numerous outdoor activities. Weather in May »

As the half-year mark approaches, Jounieh is in full swing with sea temperatures reaching a toasty 25.1°C (77.2°F), the warmest yet this year. It's undoubtedly the beginning of the summer season and the city is pulsating with activity. Weather in June »

July brings the typical summer heat to Jounieh, with sea temperatures soaring to a maximum of 27.7°C (81.9°F) for the year. This temperature spike makes it the hottest month in Jounieh, perfect for sunbathing and swimming. Despite the peak daytime temperatures, the evenings remain pleasantly warm, perfect for experiencing Jounieh’s lively nightlife. Weather in July »

The summer sizzle in Jounieh carries on into August as sea temperatures hover at their highest for the year at 28.6°C (83.5°F). This hot weather patterns continue the bustling city vibe with tourist activities at their peak. While daylight hours start to retreat, there’s still ample time for enjoyment under the sun. Weather in August »

September witnesses a slight drop in sea temperatures to 28.1°C (82.6°F), signalling the onset of the cooler autumn season. As the month progresses, the temperature gradually descends from its summer highs. Daylight hours continue to reduce, with the evenings drawing in early. Weather in September »

October brings about a more significant decline in sea temperatures, dropping to 26.2°C (79.2°F). This decrease marks a definitive end to the summer heat and the onset of autumn's coolness. It's a great time to explore Jounieh as the heat subsides and the city takes on a relaxed pace. Weather in October »

The transition into winter is perceptible in November as sea temperatures drop to 22.7°C (72.9°F), inviting the residents to fetch their warmer clothes from the back of the cupboard. As the days get shorter, and the evenings chillier, outdoor activities start to fade. Weather in November »

December witnesses further diminishing of the temperatures, with sea readings falling to a cool 20.2°C (68.4°F). As winter deepens, daylight hours reach their shortest period, making nights longer and cooler. However, the festive season sparks a warm joy that engulfs the city. Weather in December »