When is the best time to go to Koper

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The chart above shows the best time of year to visit Koper, Slovenia. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.

Average temperatures in Koper

Koper weather by month

Please note our recommendations for when to visit Koper are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.

January

Koper January weather averages
Temp Rain Sunshine Day length Sea temp
7°C 80mm 3.8hrs 10.3hrs 12°C

The weather in January in Koper is characteristically cool and a little damp.

Based on weather alone, this is probably a time of year to avoid going to Koper for your holidays. The weather is often not a good and not conducive to spending time outdoors.

January is in the winter in Koper and is typically the coldest month of the year. Daytime maximum temperatures average around a cold 8°C (46°F), whilst at night 2°C (35°F) is normal.

On average January is the driest month of the year in Koper with around 80mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 3.8 hours of sunshine per day.

Koper weather in January »

February

Koper February weather averages
Temp Rain Sunshine Day length Sea temp
8°C 73mm 5hrs 11.4hrs 10°C

February in Koper is generally reasonably dry with the temperature being cool.

Based on weather alone, this is probably a time of year to avoid going to Koper for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.

February is in the winter in Koper and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 9°C (48°F), whilst at night 2°C (36°F) is normal.

On average February is the 2nd driest month of the year in Koper with around 73mm 2.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 5 hours of sunshine per day.

Koper weather in February »

March

Koper March weather averages
Temp Rain Sunshine Day length Sea temp
11°C 76mm 5.4hrs 12.8hrs 11°C

The weather in March in Koper is characteristically cool and reasonably dry.

Based on weather alone, this is probably a time of year to avoid going to Koper for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.

March is in the spring in Koper and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 5°C (40°F) is normal.

On average March is the 3rd driest month of the year in Koper with around 76mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.4 hours of sunshine per day.

Koper weather in March »

April

Koper April weather averages
Temp Rain Sunshine Day length Sea temp
15°C 90mm 6.6hrs 14.5hrs 14°C

Koper's weather in April is typically mild and a little damp in nature.

Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit Koper.

April is in the spring in Koper and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 8°C (46°F) is normal.

On average April is the 4th driest month of the year in Koper with around 90mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.6 hours of sunshine per day.

Koper weather in April »

May

Koper May weather averages
Temp Rain Sunshine Day length Sea temp
19°C 87mm 8.1hrs 16hrs 18°C

May is a a little damp month in Koper and the temperature is generally mild.

It is perhaps a good month to visit Koper, with some very good weather at this time of year.

May is in the spring in Koper and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a comfortable 22°C (71°F), whilst at night 12°C (54°F) is normal.

On average May is the 5th driest month of the year in Koper with around 87mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.1 hours of sunshine per day.

Koper weather in May »

June

Koper June weather averages
Temp Rain Sunshine Day length Sea temp
23°C 103mm 8.9hrs 10.3hrs 22°C

Koper's weather in June is typically warm and damp in nature.

Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it an okay time to visit Koper.

June is in the summer in Koper and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a comfortable 25°C (77°F), whilst at night 16°C (60°F) is normal.

On average June is the 6th driest month of the year in Koper with around 103mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.9 hours of sunshine per day.

Koper weather in June »

July

Koper July weather averages
Temp Rain Sunshine Day length Sea temp
25°C 75mm 10.2hrs 11.4hrs 25°C

July in Koper is generally reasonably dry with the temperature being warm.

It is perhaps the perfect month to visit Koper, with some inordinately good weather at this time of year.

July is in the summer in Koper and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (82°F), whilst at night 18°C (64°F) is normal.

On average July is the 6th wettest month of the year in Koper with around 75mm 2.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.2 hours of sunshine per day.

Koper weather in July »

August

Koper August weather averages
Temp Rain Sunshine Day length Sea temp
25°C 100mm 9.4hrs 12.8hrs 26°C

The weather in August in Koper is characteristically warm and a little damp.

It is perhaps the perfect month to visit Koper, with some inordinately good weather at this time of year.

August is in the summer in Koper and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (81°F), whilst at night 17°C (63°F) is normal.

On average August is the 5th wettest month of the year in Koper with around 100mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.4 hours of sunshine per day.

Koper weather in August »

September

Koper September weather averages
Temp Rain Sunshine Day length Sea temp
21°C 112mm 7.7hrs 14.5hrs 23°C

Koper's weather in September is typically warm and damp in nature.

Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit Koper.

September is in the fall / autumn in Koper and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 15°C (58°F) is normal.

On average September is the 4th wettest month of the year in Koper with around 112mm 4.4 inches of rain making it a damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.7 hours of sunshine per day.

Koper weather in September »

October

Koper October weather averages
Temp Rain Sunshine Day length Sea temp
17°C 105mm 6hrs 16hrs 20°C

October is a damp month in Koper and the temperature is generally mild.

Based on weather alone, this is probably a time of year to avoid going to Koper for your holidays. The weather is often not a good and not conducive to spending time outdoors.

October is in the fall / autumn in Koper and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 19°C (65°F), whilst at night 11°C (51°F) is normal.

On average October is the 3rd wettest month of the year in Koper with around 105mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 6 hours of sunshine per day.

Koper weather in October »

November

Koper November weather averages
Temp Rain Sunshine Day length Sea temp
12°C 117mm 3.9hrs 10.3hrs 16°C

November is a damp month in Koper and the temperature is generally cool.

Based on weather alone, this is probably a time of year to avoid going to Koper for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.

November is in the fall / autumn in Koper and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cool 13°C (55°F), whilst at night 6°C (43°F) is normal.

On average November is the 2nd wettest month of the year in Koper with around 117mm 4.6 inches of rain making it a damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 3.9 hours of sunshine per day.

Koper weather in November »

December

Koper December weather averages
Temp Rain Sunshine Day length Sea temp
8°C 94mm 3.5hrs 11.4hrs 14°C

December in Koper is generally a little damp with the temperature being cool.

Based on weather alone, this is probably a time of year to avoid going to Koper for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.

December is in the winter in Koper and is typically the warmest month of the year. Daytime maximum temperatures average around a cool 9°C (48°F), whilst at night 3°C (37°F) is normal.

On average December is the wettest month of the year in Koper with around 94mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 3.5 hours of sunshine per day.

Koper weather in December »

Other monthly averages

UV index Best time to go?

Koper weather stats

Koper weather statistics
Hottest month: July 27.7°C 81.9°F
Driest month: February 73mm 2.9ins
Sunniest month: July 10.2hrs
Coldest month: January 7.4°C 45.3°F
Wettest month: November 117mm 4.6ins
Warmest sea: August 25.6°C 78.1°F
Map showing location of Koper (45.54694, 13.72944)

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