The tables below list average daytime high and nighttime low temperatures and average percentages of sunny and rainy/snowy days for selected Czech cities.
A rainy or snowy day is defined as a day on which at least 1 mm of precipitation falls, while a sunny day is a day on which the sun shines at least 40% of the daytime.
(Source: Czech Hydrometeorological Institute)
January
| City | Average Daytime High | Average Nighttime Low | Rainy/Snowy Days early month | Rainy/Snowy Days late month | Sunny Days early month | Sunny Days late month |
|---|---|---|---|---|---|---|
| Prague | 2 °C (36 °F) | –4 °C (25 °F) | 40% | 40% | 25% | 25% |
| Brno | 3 °C (37 °F) | –3 °C (27 °F) | 35% | 35% | 30% | 30% |
| Český Krumlov | 2 °C (36 °F) | –5 °C (23 °F) | 45% | 45% | 20% | 25% |
The New Year’s period is lively in Prague, with fireworks and festive gatherings. From early January onward, the pace slows dramatically, and the streets are far quieter. Snow is possible, especially in the first half of the month, turning the Old Town and castle district into postcard-perfect scenes. Days are short, with the sun setting before 5 pm, so it’s best to plan sightseeing around indoor attractions such as museums and historic cafés.
Outside the capital, Brno and Český Krumlov offer a similarly wintry experience, often with even quieter streets. This is the best time for those who enjoy a calm atmosphere, frozen riverside walks, and the possibility of snowy rooftops without large tourist crowds.
February
| City | Average Daytime High | Average Nighttime Low | Rainy/Snowy Days early month | Rainy/Snowy Days late month | Sunny Days early month | Sunny Days late month |
|---|---|---|---|---|---|---|
| Prague | 4 °C (39 °F) | –3 °C (27 °F) | 30% | 30% | 30% | 30% |
| Brno | 5 °C (41 °F) | –2 °C (28 °F) | 25% | 25% | 35% | 35% |
| Český Krumlov | 4 °C (39 °F) | –4 °C (25 °F) | 35% | 35% | 25% | 25% |
February is usually the driest winter month, though temperatures remain low. Crisp, sunny days make for pleasant walks if you’re dressed warmly. Tourist levels stay minimal, so iconic sights like Charles Bridge can be enjoyed almost in solitude.
Snow can still be found in higher elevations, making it a good time for skiing in Czech mountain resorts. Cultural venues in Prague are active, with winter concerts and theatre, offering an atmospheric way to enjoy the city after dark.
March
| City | Average Daytime High | Average Nighttime Low | Rainy/Snowy Days early month | Rainy/Snowy Days late month | Sunny Days early month | Sunny Days late month |
|---|---|---|---|---|---|---|
| Prague | 8 °C (46 °F) | 0 °C (32 °F) | 35% | 35% | 35% | 35% |
| Brno | 9 °C (48 °F) | 1 °C (34 °F) | 30% | 35% | 40% | 35% |
| Český Krumlov | 8 °C (46 °F) | –1 °C (30 °F) | 40% | 40% | 30% | 30% |
March signals the first hints of spring. Days are longer, and the city’s parks start showing green shoots. Temperatures can swing between frosty mornings and mild afternoons, so layering is key. Tourist crowds are still low, making it an appealing month for relaxed exploration.
In smaller towns like Český Krumlov, early spring means even quieter cobbled streets. Brno begins hosting spring exhibitions and fairs, adding some colour to the season.
April
| City | Average Daytime High | Average Nighttime Low | Rainy/Snowy Days early month | Rainy/Snowy Days late month | Sunny Days early month | Sunny Days late month |
|---|---|---|---|---|---|---|
| Prague | 14 °C (57 °F) | 3 °C (37 °F) | 30% | 30% | 45% | 45% |
| Brno | 15 °C (59 °F) | 4 °C (39 °F) | 25% | 30% | 50% | 45% |
| Český Krumlov | 14 °C (57 °F) | 2 °C (36 °F) | 35% | 35% | 40% | 40% |
April is when Prague truly wakes up. Easter markets bring colour to Old Town Square, and blossoms begin to fill public gardens. The weather is mild but unpredictable — sunshine and showers often share the same day.
In South Bohemia, orchards bloom around Český Krumlov, creating picture-perfect countryside scenes. Brno’s café terraces reopen, drawing locals outdoors.
May
| City | Average Daytime High | Average Nighttime Low | Rainy/Snowy Days early month | Rainy/Snowy Days late month | Sunny Days early month | Sunny Days late month |
|---|---|---|---|---|---|---|
| Prague | 19 °C (66 °F) | 8 °C (46 °F) | 35% | 35% | 50% | 50% |
| Brno | 20 °C (68 °F) | 9 °C (48 °F) | 30% | 35% | 55% | 50% |
| Český Krumlov | 18 °C (64 °F) | 7 °C (45 °F) | 35% | 35% | 45% | 50% |
May is one of the most pleasant months to visit. The weather is warm but not hot, gardens are in full bloom, and the days are long. It’s perfect for outdoor dining and exploring neighbourhoods on foot.
In wine-growing regions near Brno, spring tastings and festivals take place. Český Krumlov is lush and green, offering scenic walks by the Vltava.
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June
| City | Average Daytime High | Average Nighttime Low | Rainy/Snowy Days early month | Rainy/Snowy Days late month | Sunny Days early month | Sunny Days late month |
|---|---|---|---|---|---|---|
| Prague | 22 °C (72 °F) | 11 °C (52 °F) | 35% | 40% | 50% | 45% |
| Brno | 23 °C (73 °F) | 12 °C (54 °F) | 35% | 40% | 55% | 45% |
| Český Krumlov | 21 °C (70 °F) | 10 °C (50 °F) | 40% | 40% | 45% | 40% |
June brings warmth, long daylight hours, and the start of summer festivals. Outdoor concerts and beer gardens are in full swing. Occasional afternoon thunderstorms can pass quickly, leaving behind fresh air.
In smaller towns, June is a great time to enjoy the countryside, as fields and forests are green and vibrant. Rivers are ideal for canoeing or boat trips.
July
| City | Average Daytime High | Average Nighttime Low | Rainy/Snowy Days early month | Rainy/Snowy Days late month | Sunny Days early month | Sunny Days late month |
|---|---|---|---|---|---|---|
| Prague | 24 °C (75 °F) | 13 °C (55 °F) | 40% | 40% | 45% | 45% |
| Brno | 25 °C (77 °F) | 14 °C (57 °F) | 35% | 40% | 50% | 45% |
| Český Krumlov | 23 °C (73 °F) | 12 °C (54 °F) | 40% | 40% | 45% | 40% |
July is the warmest and one of the liveliest months in Prague. Long days and warm evenings make it perfect for open-air dining, river cruises, and cultural festivals. Expect high tourist numbers and occasional short rain showers.
In Brno, the summer season peaks with music festivals and outdoor events. Český Krumlov’s riverside cafés are busy, and the town hosts theatre performances in its historic castle gardens.
August
| City | Average Daytime High | Average Nighttime Low | Rainy/Snowy Days early month | Rainy/Snowy Days late month | Sunny Days early month | Sunny Days late month |
|---|---|---|---|---|---|---|
| Prague | 24 °C (75 °F) | 13 °C (55 °F) | 35% | 35% | 50% | 50% |
| Brno | 25 °C (77 °F) | 14 °C (57 °F) | 35% | 35% | 55% | 50% |
| Český Krumlov | 23 °C (73 °F) | 12 °C (54 °F) | 35% | 35% | 50% | 45% |
August remains warm and bustling, with major summer events still in full swing. Late August is slightly calmer as the holiday season begins to wind down. Warm evenings are perfect for night-time walks and outdoor music.
In South Bohemia, the landscapes are at their summer peak, and cultural festivals continue until the end of the month.
September
| City | Average Daytime High | Average Nighttime Low | Rainy/Snowy Days early month | Rainy/Snowy Days late month | Sunny Days early month | Sunny Days late month |
|---|---|---|---|---|---|---|
| Prague | 19 °C (66 °F) | 9 °C (48 °F) | 30% | 30% | 55% | 55% |
| Brno | 20 °C (68 °F) | 10 °C (50 °F) | 30% | 30% | 55% | 50% |
| Český Krumlov | 18 °C (64 °F) | 8 °C (46 °F) | 30% | 30% | 50% | 50% |
September is one of the best months for travel. The weather is mild, tourist numbers are lower, and autumn colours start to appear. Wine festivals and harvest celebrations are common.
In Moravia, vineyards near Brno are in full harvest, offering tastings and tours. Český Krumlov enjoys a quieter, more relaxed feel compared to summer.
October
| City | Average Daytime High | Average Nighttime Low | Rainy/Snowy Days early month | Rainy/Snowy Days late month | Sunny Days early month | Sunny Days late month |
|---|---|---|---|---|---|---|
| Prague | 13 °C (55 °F) | 5 °C (41 °F) | 25% | 25% | 50% | 50% |
| Brno | 14 °C (57 °F) | 6 °C (43 °F) | 25% | 25% | 55% | 50% |
| Český Krumlov | 12 °C (54 °F) | 4 °C (39 °F) | 25% | 25% | 45% | 45% |
October brings cool, crisp air and brilliant autumn foliage. Parks and gardens are at their most colourful, and the tourist season winds down.
Brno hosts autumn food and wine events, while Český Krumlov offers peaceful riverside walks with golden leaves lining the paths.
November
| City | Average Daytime High | Average Nighttime Low | Rainy/Snowy Days early month | Rainy/Snowy Days late month | Sunny Days early month | Sunny Days late month |
|---|---|---|---|---|---|---|
| Prague | 7 °C (45 °F) | 1 °C (34 °F) | 30% | 35% | 35% | 35% |
| Brno | 8 °C (46 °F) | 2 °C (36 °F) | 30% | 35% | 40% | 35% |
| Český Krumlov | 6 °C (43 °F) | 0 °C (32 °F) | 35% | 35% | 30% | 30% |
November is quiet and often grey, but the city begins preparations for Christmas. Markets start in the final week, creating a festive mood.
In Brno and Český Krumlov, similar events light up the towns, offering regional Christmas specialties and crafts.
December
| City | Average Daytime High | Average Nighttime Low | Rainy/Snowy Days early month | Rainy/Snowy Days late month | Sunny Days early month | Sunny Days late month |
|---|---|---|---|---|---|---|
| Prague | 3 °C (37 °F) | –2 °C (28 °F) | 35% | 35% | 30% | 30% |
| Brno | 4 °C (39 °F) | –1 °C (30 °F) | 30% | 35% | 35% | 30% |
| Český Krumlov | 2 °C (36 °F) | –3 °C (27 °F) | 40% | 40% | 25% | 25% |
December is magical in Prague, with Christmas markets, festive lights, and seasonal food filling the city. Cold weather and short days are part of the charm.
Brno and Český Krumlov also host charming markets, often less crowded than Prague’s, giving a cosy small-town holiday atmosphere.