If you’re planning a summer trip to Prague, it’s good to know what kind of weather you’ll face before you start packing. On average, summer temperatures in Prague swing from mild mornings—about 12°C (54°F)—to warm afternoons near 24°C (75°F). July tends to be the hottest.
This mix of comfortable warmth and those long daylight hours really draws people in. It’s easy to see why summer is such a popular time to wander the city.
You’ll get a blend of sunny days, quick rain showers, and evenings that practically beg you to sit outside at a café or stroll along the Vltava River. Sometimes heat waves push temperatures above 30°C (86°F), but they don’t usually stick around. A quick rain often cools things off.
Knowing these patterns helps you plan. Whether you’re hoping to sightsee on foot, cruise down the river, or just chill in a shaded beer garden, understanding Prague’s summer climate means you’ll probably make better choices.
Overview of Prague’s Summer Climate
Prague’s summer climate mixes mild warmth, moderate rainfall, and long daylight. Most days, you’ll get comfortable temperatures, but now and then, a hot day or a summer storm shakes things up.
Temperate Continental Characteristics
Prague sits in Central Europe and has a temperate continental climate. Summers feel warm but not overwhelming, while winters turn cold and snowy. Being inland, Prague’s temperatures swing more than in coastal spots.
During summer, daytime highs usually land between 22–25 °C (72–77 °F). Nights cool off to about 13–15 °C (55–59 °F). Humidity sticks around a moderate 65–70%, which can make warm days feel a bit heavier.
Rain doesn’t fall constantly, but you’ll notice it comes in short bursts. Thunderstorms hit most often in June and July, when warm air collides with cooler fronts. These storms usually don’t last long, and clearer skies follow.
Sunlight is a big deal in summer. Expect 7–8 hours of sunshine per day. In June, the days can stretch over 16 hours. This extra daylight gives the city a lively, active vibe.
Typical Summer Weather Patterns
The summer months—June, July, and August—each have their own feel. June is usually mild, with highs near 22 °C (72 °F) and more rain. July heats up, averaging 24–25 °C (75–77 °F). August stays warm but starts to cool off toward the end.
July is the rainiest, with about 79 mm spread out over 10 days. Showers can come out of nowhere and pour, but they’re quick. You’ll probably see a few wet days each month, but long rainy stretches are rare.
Sometimes, heat waves push highs above 32 °C (90 °F). It’s not the norm, but it happens, especially in July and August. Even when it’s hot, the evenings cool down, making nights a lot more comfortable.
Comparing Summer to Other Seasons
Winter in Prague feels totally different. January averages -1 °C (30 °F), with short days and just 1–2 hours of sunshine. Summer brings long days and much milder weather.
Spring and autumn act as the in-betweens. May gets up to 19 °C (66 °F), and September also averages 19 °C (66 °F) before dropping off in October. These months don’t rain as much as midsummer, but the weather can flip suddenly from warm to cool.
Summer is the best bet for outdoor stuff. You’ll get steady warmth, lots of sun, and manageable rain. Planning sightseeing, day trips, and evening events is just easier when you’re not worried about wild weather.
Monthly Breakdown: June, July, and August
Summer in Prague starts off mild and pleasant in June, heats up in July, and then cools down a bit and gets less predictable in August. Rain comes and goes all season, but storms are usually quick and don’t mess up most outdoor plans.
June Weather Highlights
June is probably the most comfortable month for walking and sightseeing. Daytime highs hit 20–22°C (68–72°F), while nights drop to 10–12°C (50–54°F). Early mornings and evenings can feel a bit chilly, so tossing a light jacket in your bag is smart.
Rain falls more often in June than in the other summer months, but it’s usually short-lived. A small umbrella or light raincoat does the trick for those passing storms.
You get nearly 16 hours of daylight, which gives you loads of time to explore. By this point, outdoor cafés and gardens are in full swing, so eating outside is easy.
If you like moderate weather and want to avoid the thickest crowds, June gives you a nice mix of warmth, daylight, and comfort.
July Weather Highlights
July is the hottest month. Highs average 22–24°C (72–75°F), but heat waves can push things over 30°C (86°F). Nights stay mild, usually 12–14°C (54–57°F).
With the heat, you’ll probably want to do your sightseeing in the mornings or evenings. Midday is better for shaded parks, riverside paths, or hopping on a Vltava River cruise where the breeze helps.
It doesn’t rain as much as in June, but when storms hit, they can be intense and sudden. Bring water and wear light, breathable clothes—especially if you’re spending the day walking around the old town.
July is peak tourist season, so expect bigger crowds and higher hotel prices. Starting your day early helps you dodge the busiest spots.
August Weather Highlights
August starts warm, with highs near 23–24°C (73–75°F), but by the end of the month, you’ll notice it dipping to 20–21°C (68–70°F). Nights cool down even more, often to 11–13°C (52–55°F).
Rain picks up again, and sometimes it feels almost autumn-like. A light sweater and rain jacket come in handy, especially later in August.
There’s a little less daylight than in June and July, but evenings still feel great for eating outside. August is also packed with open-air festivals and cultural events, especially toward the end of the month when locals soak up the last bits of summer.
If you want warm days, cool nights, and lively events, August gives you a good mix, though the weather can surprise you.
Average Summer Temperatures
Prague’s summer weather stays warm but rarely gets too hot. Days are comfortable for sightseeing, and evenings cool off enough that you might want an extra layer.
Daytime Highs and Lows
From June to August, daytime highs usually sit between 21°C and 26°C (70°F–79°F). June starts off milder, with highs around 20–22°C (68°F–72°F). July is the hottest, hitting 24–26°C (75°F–79°F). August drops a bit, staying closer to 22–24°C (72°F–75°F).
Daytime lows in summer average 11°C to 14°C (52°F–57°F). In June, lows are about 10–12°C (50°F–54°F). July and August are a touch warmer, usually 13–14°C (55°F–57°F). These temps make walking tours and outdoor meals pretty enjoyable.
Heat waves happen, but they’re not common. Now and then, temperatures jump above 30°C (86°F)—mainly in July. When that happens, people flock to shaded streets, riverside spots, and outdoor cafés for relief.
| Month | Avg High °C (°F) | Avg Low °C (°F) |
|---|---|---|
| June | 20–22 (68–72) | 10–12 (50–54) |
| July | 24–26 (75–79) | 13–14 (55–57) |
| August | 22–24 (72–75) | 12–13 (54–55) |
Nighttime Temperature Trends
Evenings in Prague cool down, even in the middle of summer. Nighttime temperatures usually fall into the 11°C–14°C (52°F–57°F) range. June and late August feel the coolest at night.
In July, nights are a bit milder, but you’ll still want a light jacket or sweater if you’re out late—especially if you’re catching an outdoor concert, river cruise, or dinner on a terrace.
Hot nights are rare here, unlike in Mediterranean cities. Tropical nights above 20°C (68°F) hardly happen, though they pop up during strong heat waves. For most of summer, you can count on cooler evenings that make sleeping easier and evenings outside more comfortable.
Rainfall and Precipitation Patterns
Rain in Prague during summer is moderate but steady. June usually turns out to be the wettest month. You’ll notice short showers or thunderstorms, mostly in the afternoon or evening, not all-day rain.
Monthly Rainfall Totals
Rain spreads out over the summer, but June usually sees the most. On average, June gets about 87 mm of rain, while July and August each pick up 65–70 mm. That’s enough to keep the parks green but not enough to ruin plans.
Most rain falls as quick showers, not day-long events. You might get caught in a wet spell, but it usually clears up fast. Sunshine often returns the same day, so outdoor plans stay on track.
| Month | Avg. Rainfall (mm) | Typical Pattern |
|---|---|---|
| June | ~87 mm | Frequent showers, some storms |
| July | ~68 mm | Warm days, scattered rain |
| August | ~70 mm | Shorter storms, humid conditions |
Prague falls into the moderate rainfall range for European cities. The gap between the wettest and driest summer months isn’t huge, so conditions stay pretty consistent.
Frequency of Rainy Days
You’ll see 8 to 12 rainy days per month in summer. Most of these bring light or moderate rain, but a few will have quick, heavy thunderstorms. The storms don’t last long but can pour for a bit.
Rain usually comes in the late afternoon or evening, which means mornings are drier for sightseeing. It’s smart to carry a light rain jacket or umbrella, but you probably won’t need them all the time.
Even with these rainy days, Prague still gets plenty of sunshine in summer. For example, June averages over 200 hours of sun, so rain doesn’t really take over the season. That balance keeps the city comfortable for exploring.
Sunshine and Daylight Hours
Summer in Prague gives you long, bright days. You’ll notice a lot more daylight than in winter, though cloud cover still decides how much direct sun you actually get.
Average Daily Sunshine
In June, July, and August, you’ll usually get between 7 and 9 hours of sunshine per day. July stands out as the sunniest month, with about 8 hours and 30 minutes of sunshine daily.
June is a touch sunnier at almost 8 hours and 48 minutes. August drops off a little, giving you around 7 hours and 54 minutes each day.
You can expect about half of the daylight hours to be sunny, while the rest are often cloudy or hazy. In reality, you’ll find plenty of clear skies for sightseeing, outdoor meals, and river walks, though some overcast spells are just part of the deal.
Compared to spring or autumn, summer really gives you the most reliable run of bright days. Sure, rain showers show up sometimes, but they usually don’t last long, and the sun tends to come back pretty quickly.
Changes in Day Length
Daylight shifts as summer goes on. Around the summer solstice in late June, Prague gets its longest days, with daylight stretching over 16 hours.
The sun rises early and sets late, so you have loads of time for whatever you want to do.
By July, the days get a bit shorter, down to about 15 hours and 54 minutes. In August, daylight slips further to around 14 hours and 26 minutes.
You’ll start to notice earlier sunsets as summer winds down.
In June and July, the sun climbs high—over 60° above the horizon at noon—which means stronger light and warmer afternoons.
By August, the sun sits lower, the light softens, and evenings begin to cool off more quickly.
Humidity and Wind in Summer
Summer in Prague often feels warmer than the numbers suggest because humidity runs high and winds stay light to moderate. These two things really shape how comfortable you’ll feel, especially if you’re out all day or strolling in the evening.
Typical Humidity Levels
Humidity in Prague during summer usually falls between 70% and 80%. July often feels muggiest, with averages close to 80%.
That extra moisture can make daytime highs of 25–26°C (77–79°F) feel heavier, especially in the afternoons.
Mornings can feel damp. Evenings cool off, but the air still holds plenty of moisture.
You might notice laundry dries slowly and shaded spots stay humid.
Compared to spring, summer air feels much stickier, which isn’t great if you’re walking long distances. If humidity bothers you, it’s smart to plan breaks inside or pick shaded spots outside.
Drinking plenty of water and wearing lightweight fabrics helps you deal with the stickiness. While the humidity isn’t extreme, it really does add to the warmth and can make crowded areas feel stuffy.
Prevailing Wind Conditions
Winds in Prague during summer stay light to moderate, averaging about 10–15 km/h (6–9 mph). They usually come from the west or northwest, which brings in slightly cooler air and helps a bit with the humidity.
You probably won’t feel strong gusts in the city center—buildings break up the wind.
Parks or higher viewpoints can get breezier, which is a relief on hot days.
Wind speeds almost never ruin outdoor plans, but you might notice still, heavy air during humid afternoons.
When the air stops moving, the heat feels more intense, especially with a bright sun overhead.
Evening breezes show up more often and make it pleasant for river walks or sitting outside at cafés.
Practical Tips for Experiencing Prague’s Summer Weather
Warm afternoons, cool nights, and the occasional rain shower all shape how you should get ready for a summer trip. Packing smart, planning for comfort, and knowing what’s on in town will help you enjoy the city, no matter what the weather does.
What to Pack for Summer
Daytime highs often hit the mid-70s °F (around 24°C), but heat waves can push things closer to 35°C. Bring lightweight, breathable clothing for the day—think cotton shirts, shorts, or dresses.
Evenings dip into the low 50s °F (10–12°C), so pack a light sweater or jacket. A compact umbrella or thin rain jacket comes in handy, since summer showers and quick thunderstorms do happen.
You’ll want comfortable walking shoes. Cobblestone streets can be a pain, so sandals with support or light sneakers are your best bet.
A hat, sunglasses, and sunscreen will save you during long hours outside.
If you’re thinking about concerts or festivals, toss in one casual but slightly dressier outfit. Locals tend to dress up a bit for these, even when it’s hot.
Staying Comfortable Outdoors
Summer days can get pretty hot, especially in the afternoon. To keep cool, try sightseeing in the morning or evening, and use midday for shaded activities like museums or cafés.
Hydration matters. Carry a refillable water bottle—some public fountains are around, and small grocery stores sell bottled water for cheap.
Shade is tough to find in open squares, so take breaks in parks or along the riverbanks, where you might catch a breeze.
A small, foldable fan can really help when it gets sticky.
Rain showers usually don’t last long, but they can be heavy. Keep a packable umbrella in your bag so you don’t have to stop your plans.
Seasonal Events and Activities
Summer brings all sorts of outdoor events. You can check out music festivals like Metronome, which brings together both international and local performers.
Smaller neighborhood festivals pop up too, usually showing off Czech food, beer, and a bit of folk tradition.
Evenings seem to stretch on forever, with daylight sticking around late into the night. That gives you plenty of time to wander into an outdoor theater, catch a film screening, or maybe hop on a river cruise after a long day of sightseeing.
Locals love to hang out in public spaces like Letná Park and Riegrovy Sady, where beer gardens buzz in the warm weather. These spots let you soak up the city’s atmosphere without ever leaving the center.
Markets and street fairs pop up all summer. If you visit, you’ll get to try some seasonal foods and see what daily life in Prague really feels like.