The climate is relatively cold here in october, but it is tolerable when dressing hot. The best time to visit Mostar in Bosnia and Herzegovina is from June until September, when you will have a pleasant or warm temperature and limited till little rainfall.The highest average temperature in in Mostar is 27°C in August and the lowest is 4°C in January.. Mostar has the mediterranean climate prevailing. Some would describe it as mildly cool humid but cool. Average Weather in Bosnia & Herzegovina 5. Showing: All Year January February March April May June July August September October November December. Average Weather in Sarajevo Bosnia Bihac, Bosnia and Herzegovina Travel Weather Averages … Sarajevo weather averages (imperial / metric) Daytime temperature: 20.1 °C 68.1 °F: Nightly temperature: 8.2 °C 46.7 °F: Average temperature: 14.1 °C 57.4 °F: Daily sunshine: 6.8 hrs: Avg rainfall: 77 mm 3 ins: Rainy days: 10 days: Sea temperature: 23.1 °C 73.6 °F: Humidity: 69%: Windspeed: 9 kph 6 mph Sunday 8 May 03:54 GMT 05:54 CEST +2h View by: Sort by: Flag Name … The best time of year to visit Zenica in Bosnia & Herzegovina During the month of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 25 degrees Celsius (77°F). Holiday Weather. Chance of Sunny Day 14 %. The cold season lasts for 3.4 months, from November 23 to March 2, with an average daily high temperature below 46°F. High/Low, Precipitation Chances, Sunrise/Sunset, and today's Temperature History. 76 mm of monthly rainfall. In may, maximum temperature is 67°F and minimum temperature is 54°F (for an average temperature of 59°F). With 7.5in over 11 days, rainfall can happen during your holidays. In the month of october, maximum temperature is 59°F and minimum temperature is 43°F (for an average temperature of 52°F). Bosnia and Herzegovina