2026 Climate Averages

Zagreb: Weather Guide & Climate

Complete month-by-month weather guide: Zagreb. Best time to visit: May, June, September, October. Plan your trip with detailed climate data.

Climate Overview

Zagreb has a moderate climate with average yearly highs of 17°C, lows of 8°C, and approximately 9 rainy days per month.

The best time to visit Zagreb is during May, June, September, October, when conditions are perfect for sightseeing and exploration

Now

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Feels like --
Wind --
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UV Index --

Air Quality

Best Time

May, Jun, Sep, Oct

Conditions Excellent

Hottest

28°C August
Avg Low 18°
Rain 11d

Coldest

-2°C January
Avg High
Rain 4d

Driest Month

2 days April
Avg High 19°
Avg Low

Forecast for your trip dates

Up to 16 days ahead
Best months: May, Jun, Sep, OctHottest: Aug (28°C) • Driest: Apr (2d rain)
Monthly weather data
Month High Low Rainy days Condition
January 6°C -2°C 4 Good
February 12°C 2°C 7 Good
March 13°C 3°C 11 Good
April 19°C 6°C 2 Good
May 21°C 10°C 14 Excellent (best)
June 25°C 15°C 12 Excellent (best)
July 27°C 17°C 10 Good
August 28°C 18°C 11 Good
September 23°C 14°C 8 Excellent (best)
October 17°C 8°C 11 Excellent (best)
November 9°C 4°C 4 Good
December 6°C 2°C 13 Wet

Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025

Weather by Season

Winter

Dec–Feb

High: 8°C

Low: 1°C

Rainy days: 8 days/month

Spring

Mar–May

High: 18°C

Low: 6°C

Rainy days: 9 days/month

Summer

Jun–Aug

High: 27°C

Low: 17°C

Rainy days: 11 days/month

Autumn

Sep–Nov

High: 16°C

Low: 9°C

Rainy days: 8 days/month

Month-by-Month Weather Table

Zagreb

Upper Town charm with St. Mark's Church and Dolac Market, outdoor cafés, street art, and Zagreb Cathedral.

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Common Questions

What type of climate does Zagreb have?

Zagreb has a Moderate climate with average yearly temperatures of 17°C (highs) and 8°C (lows).

When is the best time to visit Zagreb?

The best time to visit Zagreb is during May, June, September, October, when temperatures average around 21°C and conditions are ideal for sightseeing.

What are the hottest and coldest months in Zagreb?

The hottest month in Zagreb is August with average highs of 28°C, while the coldest is January with average lows of -2°C.

When is the rainy season in Zagreb?

Zagreb sees the most rain in May (14 rainy days), while April is the driest month (2 rainy days).

More Zagreb Guides

Best Time to Visit

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Things to Do

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Itineraries

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Overview

Complete travel guide for Zagreb: top things to do, itineraries, and typical costs.

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