Prague weather in August
The daily temperature range narrows and it’s a purely hot, perfect summer
Dobrý den! I’m CULT.
The weather in Prague in August differs slightly from July; the day-to-night temperature swings shrink a bit and it’s a period that’s more purely hot. July often has extreme swings with heat waves and cool spells together, but August tends to be more consistently hot. In fact, heat-wave periods in August are slightly longer than in July, so it can feel hotter. You should still always carry bottled water and a handkerchief to guard against heatstroke.
This year, 2026, there was a cluster of heat-wave days in early August, and since August 7 the heat has been more similar to average. Temperatures hover around the low 30s°C, but Prague’s dryness means traveling in 30°C weather isn’t too exhausting.
Prague — August weather
Details
August in Prague is when the daily temperature range narrows a little. In June and July the gap between daytime and nighttime is very large, but in August that gap shrinks and the season shifts toward being purely hot. That means many nights are warm. Briefly put, it’s an “even, steady heat.”
If you’re traveling with elderly people or children, you should still pack extra bottled water and handkerchiefs to prevent heatstroke. Usually heat persists through the start of the month and eases toward the end.
What should you wear?
August in Prague is definitely summer. Unlike June and July, you’re less likely to find yourself wearing only a T-shirt and shorts by day and suddenly needing a windbreaker or cardigan in the early morning or late night. Still, if you get cold easily, bring a light windbreaker or cardigan.
Because the day-to-night variation tends to decrease in August compared with June and July, nights feel less chilly and it has the pure summer vibe you expect. So pack one or two long-sleeved items plus your usual summer clothes.
Does it rain a lot in August?
Looking at annual precipitation, August receives a bit more rain than other months. In my 11 years living in Prague, two storms strong enough to call typhoons happened, and both were in August; only during those storms did it rain extremely heavily. Otherwise, most rain in August is the sudden showers common in June and July.
Because the Czech Republic is landlocked, when such storms develop they take time to travel from the Atlantic or Mediterranean to Prague, so you can usually check projected paths on your smartphone in advance.
As in June and July, there are moments in August when you’ll need long clothes. If it rains for a few hours, put on a long layer afterward because the temperature can drop a lot. The photo I took above was a few hours after rain; I was in shorts and a T-shirt and noted that women’s outfits looked like it was very hot.
If you really feel cold easily, bringing an outer layer like that is reasonable. You can see a big difference when you compare outfits with other people on the right.
How hot is August?
Of the year, July is the hottest in Prague and August is the second hottest.
The average temperature is around 20°C, but daytime temperatures of around 30°C are common; during heat waves it can reach 35–40°C. Such events are forecast in advance, so you can prepare ahead.
Prepare for Prague in August as you would for a summer trip. In June and July the large day-night swings make long clothes essential, but in August the smaller swings and purely hot weather mean long clothes and coats become optional. As mentioned in the clothing section, temperatures fall after rain, so bring at least one thin long layer.
For the record, even after rain I usually don’t put on long clothes—when temperatures drop after rain I perceive it more as coolness than cold.
When temperatures rise, you’ll even see people sunbathing in parks. It’s not uncommon to spot someone crossing Karlův most in a bikini, and you’ll often see people resting in the shaded dock area of Aquamare near the bridge. The dock in front of Aquamare is a great spot to buy a beer or drink and relax lazily on a hot afternoon, so take some time to unwind there.
Pickpocketing — be extra careful in August
August in Prague brings many tourists, but it also brings many pickpockets and currency-exchange scammers. Prague does enforce controls and police patrol the area, but with so many visitors it’s impossible to catch everyone. Keep valuables kept securely on your person at all times.
From my experience, travelers from Korea and Japan, especially women, are prime targets for pickpockets. They often carry valuables in shoulder bags, and pickpockets open the shoulder bag in a crowd and steal wallets.
Around 2015, magnetic-clasp Louis Vuitton shoulder bags were popular among Korean women, and they became easy targets for pickpockets in Prague.
Compared with other European countries Prague has a lot of CCTV, but in dense crowds even CCTV is of limited use. Always keep valuables deep and close to your body.
Summary — Prague weather in August
To sum up Prague weather in August: it’s the second warmest month after July, but compared with June and July the day-night swing is smaller and the heat is more stable. Sudden showers tend to occur more frequently and heavier, so carry a compact umbrella and bottled water and handkerchiefs for heatstroke and you’ll be fine.
Also, in August there can be strong gusts and thunder; do not stand under large park trees during such storms — many older trees are hollow and large branches or whole trees can fall.Prague city crews do remove such trees, but it’s good to be aware for safety.
Wishing you a hot but enjoyable trip.
- [Czech Prague annual weather at a glance]
- Prague — January weather
- Prague — February weather
- Prague — March weather
- Prague — April weather
- Prague — May weather
- Prague — June weather
- Prague — July weather
- Prague — August weather
- Prague — September weather
- Prague — October weather
- Prague — November weather
- Prague — December weather
- In August, Prague's sunsets fall to the west, so you can enjoy a beautiful view from the hill at Riegrovy sady.
- I don't carry an umbrella. In central Prague many buildings have arched walkways, so there are plenty of places to shelter from the rain. If you wait in those spots, the rain often stops after a short time—sometimes 5 minutes, sometimes up to 30. While waiting I check the forecast on my phone to get an idea of how many more minutes it will rain, and if it looks like it'll last a long time I usually call an Uber and head back to my accommodation. That said, it almost never rains all day.
- If your family prefers to take it easy and rest while traveling instead of trying to see everything in one day, August can be a good time for a family trip. Prague has plenty of places to relax and cool off when it’s hot.
- Prague's trams run models dating back to the 1960s to preserve their vintage character. The ones that look obviously old have no air conditioning, and among the newer trams only the red ones with a yellow front are air-conditioned. Also, tram number 22—which is busiest during peak tourist times—tends to have a higher proportion of air-conditioned new trams.
- Since a 2019 Prague ordinance, commercial activities using soap bubbles in the square are prohibited. This was a question I got surprisingly often. The rules for busking in Prague’s historic district are very strict, so you’ll see a higher-quality street culture there rather than bubble play.
