2026 Climate Averages

Weather: Mostar — September

The weather is near-perfect with ideal temperatures and minimal rain. Recommended month to visit.

🌟 Climate Overview

September is an excellent time to visit Mostar. Hot conditions with temperatures reaching 29°C—stay hydrated and seek shade. Rain is common, so pack an umbrella. Temperatures vary significantly between day and night—layering is recommended. As peak season, expect higher prices and more tourists.

7.4
GoTripzi Score Great

Based on weather comfort, crowds, prices, and activity options

Avg High

29°C

Avg Low

17°C

Rainy days

10days

Daylight

12.5h

Rainfall

137mm

Sunshine

10.1h/day

Humidity

68%

Muggy
Sun Strength

6.5

High
Wind

10 km/h (gusts 32)

Is September a good time to visit Mostar?

The weather is near-perfect with ideal temperatures and minimal rain.

Now

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Feels like --
Wind --
Humidity --
UV Index --
Local time

Air Quality

Travel Context

  • Crowds
    Very Busy
  • Travel Costs Peak Rates

Daylight

Sunrise

06:29

Sunset

19:01

12.5h daylight

Visiting Mostar in September: Pros & Cons

Pros

  • Abundant sunshine for beach and outdoor fun
  • One of the best months to visit

Cons

  • Peak season — expect crowds and higher prices

Things to Do in September

Recommended for This Weather

🚶 Walking tours & sightseeing
🚲 Cycling & bike tours
🥾 Hiking & nature trails
🏛️ Museums & galleries
🍳 Cooking classes & food tours
🎭 Cultural tours & local experiences

Mostar Weather by Month

Month Avg High Avg Low Rain Sunshine Humidity UV Index Crowds Condition
Jan 12°C 4°C 12d (142mm) 6.1h
78% Humid
2.6 Moderate
Good
Feb 14°C 5°C 8d (110mm) 7.4h
74% Humid
3.8 Moderate
Good
Mar 17°C 6°C 11d (153mm) 8.8h
68% Humid
5.8 High
Good
Apr 20°C 9°C 12d (110mm) 10.6h
67% Humid
7.8 Very High
Good
May 25°C 14°C 13d (122mm) 11.6h
69% Humid
8.8 Very High
Excellent
Jun 31°C 18°C 7d (66mm) 13.2h
64% Moderate
10.1 Extreme
Excellent
Jul 35°C 21°C 4d (31mm) 13.5h
54% Moderate
10.2 Extreme
Good
Aug 34°C 21°C 8d (81mm) 12.2h
58% Moderate
8.6 Very High
Good
Sep Current 29°C 17°C 10d (137mm) 10.1h
68% Muggy
6.5 High
Excellent
Oct 23°C 12°C 10d (129mm) 8.3h
76% Humid
4.5 Moderate
Excellent
Nov 17°C 8°C 12d (230mm) 6h
81% Very Humid
2.7 Moderate
Good
Dec 13°C 6°C 13d (192mm) 5.1h
83% Very Humid
2 Low
Wet

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5
3
3
Your Best MonthJulScore: 7.4

Where to Stay

See hotels, apartments & rentals around Mostar – live prices from Booking.com, Expedia, Vrbo and more

Mostar

Iconic arched bridge over turquoise Neretva River in historic Ottoman town. Discover Stari Most bridge.

View Full Destination Guide

What to Pack for September

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces. Temperatures drop significantly at night, so pack layers you can add or remove throughout the day. A waterproof jacket and shoes are non-negotiable — showers are frequent. Don't forget a wide-brimmed hat and high-SPF sunscreen — the sun is strong.

Warm Very Busy

🎒Personalized Packing List

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Your Packing List

📋Essentials
👕Clothing
👟Footwear
🎒Accessories
🧴Toiletries & Health

Planning a trip to Mostar?

🔥 Peak season — book early for best rates

Frequently Asked Questions

Is September a good time to visit Mostar?
September is typically excellent for visiting Mostar, with average highs of 29°C and around 10 rainy days. Plan your activities accordingly—outdoor sightseeing is best on dry days, while rainy days are perfect for museums and indoor attractions.
Does it get cold at night in Mostar in September?
Evenings in Mostar during September are mild at 17°C. A light cardigan or long sleeves for evenings is usually enough. Outdoor dining remains comfortable, making it a great time to enjoy rooftop bars and terrace restaurants.
What should I pack for Mostar in September?
With highs of 29°C and lows of 17°C in September, we recommend: Compact umbrella, Waterproof jacket/shell, Lightweight breathable clothes, Sunscreen SPF 30+. Layering is key as temperatures can vary between air-conditioned interiors and outdoors. Comfortable walking shoes are essential for cobblestone streets.
Does it rain a lot in Mostar in September?
Mostar typically sees around 10 rainy days in September. Rain is usually in the form of brief showers rather than all-day downpours, so a compact umbrella is sufficient. Mornings tend to be drier, making them ideal for outdoor sightseeing.
How many hours of daylight are there in Mostar in September?
In September, Mostar gets approximately 12.5 hours of daylight per day. This affects how much sightseeing you can fit in—longer days mean more time for outdoor activities, while shorter days are perfect for cozy museum visits and early dinners.
Is September peak season in Mostar?
Yes, September is peak season in Mostar. Expect higher prices for accommodation and more crowds at popular attractions, but also the best weather conditions. Book hotels and major attractions in advance to secure availability and better rates.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: Europe/Sarajevo)

Last Updated: February 2026