Climate and monthly weather forecast
Sisak, Croatia

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The climate of Sisak

The geographical location of Sisak, Croatia, in the continental part of the country, gives it a unique weather profile defined by the Köppen climate classification as Cfb, known as a marine west coast climate with warm summer. This translates into warm summers, mild winters, and precipitation that does not significantly fluctuate throughout the year.

Annually, temperatures typically range from highs of around 27°C (80.6°F) in July to lows of -3.1°C (26.4°F) in January. The warm period, defined by temperatures exceeding 20°C (68°F), mainly occurs between May and September. On the colder side, the period from November to March often sees temperatures plummeting below freezing point. Relative humidity stays consistently high throughout the year, peaking at 87.3% in December and dropping only slightly to 68.5% in April.

Rainfall also presents an almost uniform distribution with the number of rainfall days being more than 10 every month. The highest precipitation of 95mm (3.74") occurs in June, while the driest month is February with 48mm (1.89") of rainfall. Sisak experiences snowfall primarily during the winter months from November to February, with January having the highest number of snowfall days (11.8).

Daylight hours in Sisak extend from as much as 15.6 per day in June to as little as 8.8 in December, while the sunshine hours fluctuate between 1.4 hours per day in December and 9.2 hours per day in July.

The best time to visit Sisak

Given its climate characteristics, the ideal time for a visit to Sisak is between May and September when the temperature is most comfortable, ranging from 16.7°C (62.1°F) to 27°C (80.6°F). During this period, visitors can expect longer daylight hours, providing ample opportunity to explore the various attractions in and around the city. For those who enjoy a bit of sun, the months from May to August offer the highest average sunshine hours.

The worst time to visit Sisak

Cold weather enthusiasts and those seeking snowfall could find the winter months attractive; however, the general populace may find the cold temperatures and short daylight hours from November to February less appealing. January, in particular, with its average low of -3.1°C (26.4°F) and high number of snowfall days, might not be an ideal time for a visit.

Spring weather in Sisak

Spring spans from March to May in Sisak, with temperatures gradually rising from an average high of 12.2°C (54°F) in March to 21.9°C (71.4°F) in May. Despite the rise in temperatures, rainfall and relative humidity also increase progressively through the season. This period receives reasonable daylight hours ranging from 11.9 hours in March to 14.9 hours in May, offering good conditions for outdoor activities.

Summer weather in Sisak

The summer months (June to August) are characterized by warm temperatures that peak in July at an average high of 27°C (80.6°F), dropping slightly to an average high of 26.6°C (79.9°F) in August. These months receive the most rainfall with June having the highest precipitation of 95mm (3.74"). Despite the rainfall, summer is also the sunniest season with July boasting an impressive average of 9.2 sunshine hours per day.

Autumn weather in Sisak

Autumn in Sisak is seen from September to November. Temperatures steadily decrease from an average high of 22.4°C (72.3°F) in September to 9.1°C (48.4°F) by November. Rainfall is relatively higher during these months. The daylight hours also decrease, ranging from 12.5 hours in September to 9.5 hours in November.

Winter weather in Sisak

The winter months of December through February witness the coldest temperatures, with January being the chilliest month with an average low of -3.1°C (26.4°F). Despite having the lowest rainfall of 48mm (1.89") in February, winter presents a high number of snowfall days, especially in January. Daylight hours are shortest in this season, decreasing to a yearly low of 8.8 hours in December.

Weather in January

Characterized by cold and snowy conditions, January in Sisak, Croatia, presents a wintery landscape. January has the highest number of snowfall days with an average of 11.8 days. This month brings the chill as temperatures can drop to a low -3.1°C (26.4°F). Weather in January »

Weather in February

Sisak witnesses a slight transition from the deep winter of January to a moderate one in February. The number of snowfall days decreases to 8.4 days in February, indicating a shift towards spring. This month is less cold than January with temperatures rising from an average low -3.1°C (26.4°F) to -2°C (28.4°F). Weather in February »

Weather in March

March in Sisak sees a notable jump in daylight hours, hinting at the approach of spring. The snowfall days drop drastically to an average of 2.5 days. Transitioning from a low -2°C (28.4°F) in February to a warmer 1.5°C (34.7°F) in March, Sisak begins to experience the thaw of winter. Weather in March »

Weather in April

April in Sisak is marked by a significant change in the weather. Embracing spring completely, the city experiences 0.4 average snowfall days indicating the end of the frosty season. It becomes quite welcoming with average low temperatures reaching a mild 5.4°C (41.7°F) from 1.5°C (34.7°F) in March. Weather in April »

Weather in May

The month of May in Sisak is all about the richness of spring merging with the anticipation of summer. Even though the rainfall increases to 79mm (3.11") from 69mm (2.72") in April, the rise in average high temperatures to 21.9°C (71.4°F) makes this month quite pleasant. Weather in May »

Weather in June

June in Sisak signifies the commencement of the summer season. The city experiences the maximum daylight hours of the year standing at an average of 15.6 hours. Despite an increase in rainfall to a substantial 95mm (3.74"), temperatures continue to hike up, reaching an average high of 24.8°C (76.6°F). Weather in June »

Weather in July

July in Sisak is the peak of summer, characterized by warm and inviting weather. This month sees the highest temperatures of the year, soaring to an average high of 27°C (80.6°F). Although the rainfall remains high at 80mm (3.15"), July is marked by increased sunshine hours, adding brightness to the scorching days. Weather in July »

Weather in August

August is another delightfully warm and sunny month in Sisak. Although temperatures slightly withdrawal from July’s record high of 27°C (80.6°F) to a still warm 26.6°C (79.9°F), it brings a bit of respite from July's peak of summer heat. Weather in August »

Weather in September

September ushers in the arrival of the fall season in Sisak. This month experiences a decrease in average high temperatures to a more mild 22.4°C (72.3°F) signalling the end of summer and the beginning of the fall season. The autumnal charm can be observed in the metamorphosis of the city's color palette, from the dynamic greens of summer to the warm hues of autumn. Weather in September »

Weather in October

As October rolls in, Sisak finds itself deep in the heart of autumn. The mingling of crisp air and falling leaves paint a picture of true autumn beauty. Temperatures witness another drop, with the average high being a cool 16.2°C (61.2°F). Weather in October »

Weather in November

November is characterized by the unmistakable signs of the approaching winter in Sisak. With the shortest daylight hours since March at 9.5 hours and an average high temperature dropping to a cooler 9.1°C (48.4°F), the city prepares for the winter chill yet again. Weather in November »

Weather in December

December in Sisak brings with it the winter chill. Winter takes its full form with the average high dropping down to 4.7°C (40.5°F), the second coldest month of the year after January. The snowfall days increase once again to 8.3 days, transforming Sisak into a winter wonderland. Weather in December »
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Frequently asked questions

What part of the year is the coldest in Sisak?

January stands out as Sisak's coldest month, with temperatures ranging between an average high of 3.7°C (38.7°F) and a low of -3.1°C (26.4°F).

How many days does it rain in Sisak?

In Sisak, Croatia, during the entire year, the rain falls for 144 days and collects up to 876mm (34.49") of precipitation.

When does it snow in Sisak?

January through April, November and December are months with snowfall.

When does it snow the most in Sisak?

The month with the most snowfall days in Sisak is January, when snow falls for 11.8 days.

How many days does it snow in Sisak?

In Sisak, during the entire year, snow falls for 34.9 days.

What is the driest month in Sisak?

February is the month with the least rainfall. Rain falls for 10.9 days and accumulates 48mm (1.89") of precipitation.

What is the least humid month in Sisak?

With an average relative humidity of 68.5%, April is the least humid month in Sisak.

When it does not snow in Sisak?

In Sisak, Croatia, snow does not fall in May through October.

What is the rainiest month in Sisak?

The month with the most rainfall is June, when the rain falls for 13.8 days and typically aggregates up to 95mm (3.74") of precipitation.

When are the longest days in Sisak?

With an average of 15h and 36min of daylight, June has the longest days of the year.

What part of the year is the hottest in Sisak?

The warmest time of the year in Sisak, Croatia, is July, with temperatures averaging a high of 27°C (80.6°F) and a low of 14.7°C (58.5°F).

What month has the most sunshine in Sisak?

With an average of 9.2h of sunshine, July has the most sunshine of the year.

When is Daylight Saving Time (DST) in Sisak?

On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends in Sisak, Croatia, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.

What is the most humid month in Sisak?

With an average relative humidity of 87.3%, December is the most humid month.

What is the month with the shortest days in Sisak?

December has the shortest days of the year, with an average of 8h and 48min of daylight.

What is the month with the least sunshine in Sisak?

The month with the least sunshine in Sisak, Croatia, is December, with an average of 1.4h of sunshine.

Average humidity
Sisak, Croatia

Average humidity - Sisak, Croatia

The month with the highest relative humidity is December (87.3%).
The month with the lowest relative humidity is April (68.5%).

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Average rainfall
Sisak, Croatia

Average rainfall - Sisak, Croatia

The wettest month (with the highest rainfall) is June (94.7mm).
The driest month (with the least rainfall) is February (48.2mm).

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Average rainfall days
Sisak, Croatia

Average rainfall days - Sisak, Croatia

The months with the highest number of rainy days are April and June (13.8 days).
The month with the least rainy days is August (10.1 days).

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Average snowfall days
Sisak, Croatia

Average snowfall days - Sisak, Croatia

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Sisak, Croatia

Average daylight / Average sunshine - Sisak, Croatia

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

The month with the most sunshine is July (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).

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Sisak, Croatia

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