Best time to visit Bratislava

Re-score for me — drag the dial — every chart on the page recolours live for your heat limit 27°C
I'm comfortable up to 27°C feels-like
22° heat-averse 30° heat-loving

Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.

Saved to this browser. Changes update the strips below.
Recent · 2020-2024
Interest Google Trends 2021-2025 searches, not arrivals (?)
Day · avg daily high (?)
Night · avg overnight low (?)
UV index · On a typical day around midday, UV is about this (?)
112456664211
On the sunniest 1 in 10 days, UV reaches this — and even higher
3568753
PM2.5 air quality · on a typical day (?)
1917161088798111620
On the worst 1 in 10 days, PM2.5 reaches this — and even higher
332925141111111413192934
July 9/10 feels 27°C (+1°C vs 1991-2020) · HCI 93/100
Day 28° · Night 18° · cools 10° at night 48% humidity 20 km/h wind 8 rain days (71h) 294h sun
Thermal 9
Sky 10
Rain 8
Wind 10

Higher = better, including rain & wind (green = "doesn't hurt the score", not "lots of it").

How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.

Compare with another destination

Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.

Tours in Bratislava

6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Bratislava).

  1. 1Bratislava Post-Communism Tour4.97★ (772)2h 30mfrom $127
  2. 22H Private Tour with Jakub5.00★ (13)2hfrom $46
  3. 3Bratislava Food Tour: Traditional Slovak Flavors & History5.00★ (14)3h 30mfrom $98
  4. 4Vienna, Budapest and Bratislava 3 Capitals Small Group Day Trips4.97★ (66)from $162
  5. 5Devin Castle and Iron Curtain Half-Day Tour From Bratislava5.00★ (2)3hfrom $155
  6. 6Self Guided Tour of Bratislava, the City Out of a Fairytale5.00★ (1)from $8

Last refreshed 2026-06-26.

Similar climatesSopron97% · Szentendre96% · Vienna96%

Other destinations with the most-alike year-round climate to Bratislava (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Bratislava's. Based on the 2020-2024 climatology, not this year's actual weather.

Month-by-month

Month Temp °C Feels °C Rain days Rain h Rain h/day Humidity Wind km/h Sun h UV Interest Score
Jan -1–5 0 11 115 10.5 75% 21 110 1 Quiet 4
Feb 1–9 5 9 93 10.3 65% 24 142 1 Quiet 5
Mar 2–12 8 6 63 10.5 53% 21 206 2 Quiet 7
Apr 5–15 12 10 97 9.7 50% 21 226 4 Quiet 7
May 11–20 18 10 114 11.4 53% 21 255 5 Quiet 8
Jun 16–25 25 11 94 8.5 53% 19 281 6 Quiet 9
Jul 18–28 27 8 71 8.9 48% 20 294 6 Quiet 9
Aug 17–27 27 9 85 9.4 55% 18 261 6 Peak 9
Sep 13–22 21 9 98 10.9 59% 19 211 4 Busy 9
Oct 9–16 14 8 92 11.5 69% 19 169 2 Moderate 7
Nov 3–9 6 8 93 11.6 77% 18 107 1 Peak 5
Dec 0–5 1 10 122 12.2 82% 20 84 1 Busy 4

UV Index in Bratislava by Month

UV index in Bratislava peaks at 6 (high) in July, dropping to 1 (low) in December. June, July have high UV — SPF 30+ and sunglasses recommended.

Best months in detail

July

9/10

18–28°C · 8 rain days (71h) · 294 sun hours · 48% humidity · Quiet crowd · UV 6 (high)

June

9/10

16–25°C · 11 rain days (94h) · 281 sun hours · 53% humidity · Quiet crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (high)

August

9/10

17–27°C · 9 rain days (85h) · 261 sun hours · 55% humidity · Peak crowd · UV 6 (moderate) · sunniest 1 in 10 days reach 7 (high)

Every month

Show the other 9 months in detail

January

4/10

-1–5°C (feels 0°C) · 11 rain days (115h) · 110 sun hours · 75% humidity · Quiet crowd · UV 1 (low)

February

5/10

1–9°C (feels 5°C) · 9 rain days (93h) · 142 sun hours · 65% humidity · Quiet crowd · UV 1 (low)

March

7/10

2–12°C (feels 8°C) · 6 rain days (63h) · 206 sun hours · 53% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)

April

7/10

5–15°C (feels 12°C) · 10 rain days (97h) · 226 sun hours · 50% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 5 (moderate)

May

8/10

11–20°C (feels 18°C) · 10 rain days (114h) · 255 sun hours · 53% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)

September

9/10

13–22°C (feels 21°C) · 9 rain days (98h) · 211 sun hours · 59% humidity · Busy crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 5 (moderate)

October

7/10

9–16°C (feels 14°C) · 8 rain days (92h) · 169 sun hours · 69% humidity · Moderate crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)

November

5/10

3–9°C (feels 6°C) · 8 rain days (93h) · 107 sun hours · 77% humidity · Peak crowd · UV 1 (low)

December

4/10

0–5°C (feels 1°C) · 10 rain days (122h) · 84 sun hours · 82% humidity · Busy crowd · UV 1 (low)

Frequently asked questions about visiting Bratislava

When is the best time to visit Bratislava?

July is the highest-scoring month (9/10 on the Holiday Climate Index). Typical conditions: 18–28°C (8 rainy days). The top three months by score are July, June, August.

What is the worst time to visit Bratislava?

December is the lowest-scoring month (4/10). Typical conditions: 0–5°C (10 rainy days).

When are crowds lowest in Bratislava?

Search-interest seasonality (Google Trends 2021-2025) is lowest in January and peaks in November. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.

Which months in Bratislava have good weather but fewer tourists?

June (climate 9/10, crowd index 17) and July (climate 9/10, crowd index 28) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.

What is the UV index in Bratislava by month?

UV peaks at 6 (high) in July and is lowest in December at 1 (low). Monthly peak values: Jan 1, Feb 1, Mar 2, Apr 4, May 5, Jun 6, Jul 6, Aug 6, Sep 4, Oct 2, Nov 1, Dec 1.

What is the UV index in Bratislava in July?

July is the peak UV month in Bratislava, with a daily-peak UV index of 6 (high). Apply SPF 30+, wear sunglasses, and seek shade during midday hours.

How high can UV get in Bratislava on the sunniest days?

Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. June is the worst case: typical days average UV 6 (high), but the top 10% of days reach UV 8 (high) — and even higher. Months where the sunniest days routinely exceed the typical reading: March, April, May, June, August, September, October. Plan sun protection for the worst case, not the average.

Is air quality in Bratislava bad for travelers?

PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 6 months: January, February, March, October, November, December. The worst month is December with a typical-day mean of 20 µg/m³ (unhealthy for sensitive); on the worst 10% of days PM2.5 reaches 34 µg/m³ (unhealthy) and higher. People with asthma, heart conditions, or sensitive children may want to avoid these months or limit outdoor activity. Source: CAMS via Open-Meteo.