Climate - Bosnia Herzegovina

The climate in detail

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• The western plain - Neum, Mostar
• Hills and mountains - Sarajevo, Bjelasnica
• The northern plain - Banja Luka
• When to go
• What to pack

The western plain

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The country has a short stretch of coast overlooking the Adriatic Sea, of about 7 kilometers (4 miles), for the rest, the border is just a few kilometers from the sea, while the coast belongs to Croatia.
The coastal area has a Mediterranean climate, with a mild, rainy winter and a hot, sunny summer. Precipitation amounts to about 1,000 millimeters (40 inches) per year.
In winter, during cold spells, the temperature can drop to -5/-6 °C (21/23 °F), while in summer it can reach 38/39 °C (100/102 °F).

Neum

Here are the average temperatures of Neum.

Near Neum, the Adriatic sea is warmest in July and August, when the water temperature is 24/25 °C (75/77 °F), while it's still acceptable in September, when the water temperature is 23 °C (73 °F), and a bit cool in June, when it's 22 °C (71.5 °F).

Mostar

Behind the stretch of coastline, there is a plain, crossed by the Neretva River, where the city of Mostar is located (but also the pilgrimage site of Medjugorje), which has a transitional Mediterranean climate, with winters already a bit colder and particularly hot summers. In summer, owing to the location a bit isolated from the sea, hot days are possible, with peaks above 40 °C (104 °F).
In Mostar, the main center of Herzegovina, the coldest record is -11 °C (12 °F) and was set in January 1963. More recently, the temperature dropped to -9 °C (16 °F) in January 2017.
The highest record is 43 °C (109.4 °F) and was set in August 2007.
Here are the average temperatures.

This is also a rainy area, since we are to the west of the mountains. The rainfall almost 1,500 millimeters (60 inches) per year, and the only relatively dry months are July and August, with around 50 mm (2 in) of rain. Here is the average precipitation.

In Mostar, the sun does not shine very often in winter, while it frequently shines in summer. Here are the average sunshine hours per day.

Hills and mountains

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To the east of the small plain near the sea, we find the Dinaric Alps, parallel to the coast. In this area, the climate becomes more continental at hill altitudes, while at higher altitudes we find an Alpine climate. Let's start with the cities located at an altitude of a few hundred meters.
In Livno, about 50 km (30 mi) away from the sea and 700 meters (2,300 feet) above sea level, the monthly average temperature ranges from in 1 °C (34 °F) in January and February to 20 °C (68 °F) in July.

Sarajevo

In Sarajevo, the capital, 120 kilometers (75 miles) away from the sea and 500 meters (1,650 ft) above sea level, the average ranges from 0.6 °C (33 °F) in January to 21.3 °C (70.3 °F) in August.
In winter, during cold waves, the temperature can drop to -20 °C (-4 °F) and even below. The coldest record is -26.4 °C (-15.5 °F) and was set in January 1942. In recent years, the temperature dropped to -22 °C (-7.5 °F) in January 2017.
In summer, nights are usually quite cool, however, during the day it can sometimes get very hot, with peaks around 36/37 °C (97/99 °F) in July and August. The highest record is 40 °C (104 °F) and was set in August 1946.
Throughout this area of hills and low mountains, the wind is quite frequent. In Sarajevo, the south-west wind, which blows more frequently in spring, is similar to the Foehn, that is, a warm and dry wind descending from the mountains.
Here are the average temperatures.

In Sarajevo, precipitation is not as abundant as on the western side, because the mountains to the south partly protect it from the humid winds of the Adriatic. Precipitation amounts to about 950 mm (37.5 in) per year, but it's well distributed over the seasons. In fact, the rains brought by western frontal systems in the cold half of the year are replaced by afternoon thunderstorms in late spring and summer. In winter, there is a fair amount of snowy days.
Here is the average precipitation.

The sun in Sarajevo is rarely seen in winter, while in summer, it shines quite often, though not as often as in Mostar and along the coast.



In the high mountains, the climate gets naturally colder. The highest mountain is Maglic, 2,386 meters (7,828 feet), on the border with Montenegro.

Bjelasnica

In Mount Bjelašnica, south of Sarajevo, at an altitude of 2,000 metres (6,500 feet), the average temperature ranges from -6.5 °C (20.5 °F) in January to 12 °C (53.5 °F) in August. The coldest record is -29 °C (-20 °F), set in January 1963. The highest record is 24 °C (75 °F), set in August 2007. Here are the average temperatures.

Precipitation amounts to 1,300 mm (51 in) per year, and there is no dry season. In winter, heavy snowfalls occur.

The northern plain

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On the northern side of the mountains we find low-lying valleys, while in northern Bosnia, near the border with Croatia, we find a flat area.
In this area, in cities such as Bihac, Tuzla, Banja Luka, the climate is of the continental type, basically not very different from that of Sarajevo.

Banja Luka

In Banja Luka, the second largest city in Bosnia and Herzegovina, the average temperature ranges from 1°C (34 °F) in January to 22.5 °C (72.5 °F) in July. As far as extreme values are concerned, in the last thirty years the temperature has dropped to -23 °C (-9.5 °F) in February 2012, while it reached 40 °C (104 °F) in July 2007 and August 2012.
Here are the average temperatures.

Here too, precipitation amounts to around 900/1,000 mm (35/40 in) per year, so it's still quite high, and also well distributed because of the frequent thunderstorms in summer. Here is the average precipitation in Banja Luka.

In Banja Luka and in the northern plain, the sun shines more or less the same number of hours as in Sarajevo and in the hilly area.

When to go

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The best time to visit most of Bosnia and Herzegovina, namely the hilly area (see Sarajevo) and the northern plain (see Bihac, Tuzla, Banja Luka), is from June to September. However, given that some very hot days are possible in July and August, you may prefer June and September if you don't like the heat. The summer weather is often sunny, but thunderstorms can break out in the afternoon. Normally, nights are cool.

In the small western plain, in Mostar or Medjugorje, where in summer it is often very hot, you can choose May, June, and September. In July and August, rainfall is rare, but it can sometimes be hot. From October to April, and therefore even in winter, the weather is usually mild, but sometimes it's windy, and in addition, the rains are abundant.
For a beach holiday, the short coastal stretch, because of its Mediterranean climate, is good in summer (especially in July and August).

What to pack

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In winter: for Sarajevo and inland areas, bring warm clothes, such as a sweater, a down jacket, a hat, gloves, and a raincoat or umbrella. For the plain of Mostar and the coast: warm clothes, such as a sweater, a coat, and a raincoat or umbrella.
In summer: bring light clothes, T-shirts, but also long pants, a light jacket and a sweatshirt for the evening and for cooler days, especially in inland areas; an umbrella.

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