Best year time to visit Koper

General weather information about Koper

Average annual temperature is 13.0 °C

Absolute maximum temperature: 34.2 °C

Absolute minimum temperature: -4.9 °C

Number of sunny days: 152 days

Number of rainy days: 209 days

Number of snow days: 4 days

Look at detailed online map of Koper

* Weather data for Koper Slovenia is based on climate observations for 2026 year

Koper air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	11.6	14.8	16.8	20.3	24.8	30.3	34.2	33.3	28.1	24.5	16.6	15.9
Average daytime temperature (°C)	7.7	9.0	12.8	14.2	20.2	24.8	27.6	27.2	24.2	20.0	12.2	10.1
Average temperature (°C)	4.7	3.8	8.3	9.5	15.7	20.0	22.5	21.8	19.1	15.6	8.4	6.1
Average night temperature (°C)	2.3	0.0	4.2	4.7	11.7	15.2	17.5	16.9	14.8	11.7	4.9	2.5
Absolute minimum temperature (°C)	-3.9	-4.3	-1.7	-0.3	7.8	12.2	11.6	11.1	11.7	4.4	-3.4	-4.9

Koper monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	11.0	12.0	14.0	15.0	15.0	15.0	14.0	13.0	11.0	10.0	8.0
Daylight mean duration (h)	9.2	10.4	11.9	13.5	14.9	15.6	15.3	14.1	12.5	10.9	9.5	8.8
Daylight minimum duration (h)	8.0	9.0	11.0	12.0	14.0	15.0	14.0	13.0	11.0	10.0	9.0	8.0
Sunshine mean duration (h)	4.5	7.2	8.2	9.0	10.5	12.7	12.5	11.0	10.5	7.7	5.8	4.8
Precipitation (mm)	116	35	85	79	127	106	159	314	89	297	208	109
Sunny days	11	20	13	12	8	11	11	16	19	14	6	11
Rainy days	17	7	18	18	23	19	20	15	11	17	24	20
Snow days	3	1	0	0	0	0	0	0	0	0	0	0

Koper - weather forecast by months

Koper weather in january Koper weather in february Koper weather in march Koper weather in april Koper weather in may Koper weather in june Koper weather in july Koper weather in august Koper weather in september Koper weather in october Koper weather in november Koper weather in december

Best time to visit Koper:

The best time to visit Koper during the most sunny months:

June — 12.7(h)
July — 12.5(h)
August — 11.0(h)

Months with the longest average daylight duration in Koper:

June — 15.6(h)
July — 15.3(h)

The largest precipitation sum in Koper is at

August — 314(mm)

October — 297(mm)

November — 208(mm)

Weather forecast in the closest to Koper admin centers