Best time to visit Warsaw

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 (?)
1234555311
On the sunniest 1 in 10 days, UV reaches this — and even higher
66
PM2.5 air quality · on a typical day (?)
32323115111091013182932
On the worst 1 in 10 days, PM2.5 reaches this — and even higher
595849221514121521295060
September 9/10 feels 19°C (+2°C vs 1991-2020) · HCI 87/100
Day 21° · Night 11° 60% humidity 17 km/h wind 8 rain days (91h) 205h sun
Thermal 9
Sky 9
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 Warsaw

7 top-rated tours via Viator. Booking links earn this site a commission at no cost to you.

  1. 1Warsaw's No 1 cooking class-Polish dumplings with liqueur tasting4.89★ (615)2hfrom $73🔥 Selling fast
  2. 2Private Tour: Warsaw City Sightseeing by Retro Fiat4.91★ (606)4hfrom $104
  3. 3Warsaw: 7 Tastings Food Tour with Pierogi Waffles & Hidden Gems4.92★ (24)3h 30mfrom $99🔥 Selling fast
  4. 4#1 Pub Crawl Warsaw with Optional Premium 1 Hour Open Bar4.82★ (798)4hfrom $26
  5. 5Skip-the-Line Wilanow Palace and Gardens Private Tour Warsaw5.00★ (2)from $139
  6. 6Warsaw: Old Town Highlights Private Walking Tour4.92★ (13)from $98
  7. 7Skip-the-Line Polin Museum Warsaw Jewish History Tour5.00★ (3)from $153

Last refreshed 2026-06-26.

Similar climatesŁódź97% · Lublin97% · Toruń97%

Other destinations with the most-alike year-round climate to Warsaw (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 Warsaw'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 -1–3 -1 14 175 12.5 83% 21 59 — Quiet 3
Feb -1–5 1 14 174 12.4 76% 22 93 1 Quiet 3
Mar 0–9 5 11 111 10.1 61% 19 173 2 Quiet 5
Apr 4–13 10 11 137 12.5 56% 19 202 3 Quiet 6
May 9–19 16 10 109 10.9 50% 20 267 4 Quiet 8
Jun 14–24 24 12 118 9.8 54% 17 280 5 Quiet 8
Jul 16–26 25 12 121 10.1 52% 18 280 5 Quiet 8
Aug 16–25 25 13 129 9.9 58% 16 242 5 Peak 8
Sep 11–21 19 8 91 11.4 60% 17 205 3 Busy 9
Oct 7–14 12 12 118 9.8 73% 19 142 1 Moderate 6
Nov 2–7 4 9 119 13.2 81% 18 75 1 Peak 4
Dec -1–3 -1 10 142 14.2 84% 19 49 — Busy 3

UV Index in Warsaw by Month

UV index in Warsaw peaks at 5 (moderate) in July, dropping to 0 (low) in January.

Best months in detail

September

9/10

11–21°C (feels 19°C) · 8 rain days (91h) · 205 sun hours · 60% humidity · Busy crowd · UV 3 (moderate)

July

8/10

16–26°C · 12 rain days (121h) · 280 sun hours · 52% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)

June

8/10

14–24°C · 12 rain days (118h) · 280 sun hours · 54% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)

Every month

Show the other 9 months in detail

January

3/10

-1–3°C (feels -1°C) · 14 rain days (175h) · 59 sun hours · 83% humidity · Quiet crowd

February

3/10

-1–5°C (feels 1°C) · 14 rain days (174h) · 93 sun hours · 76% humidity · Quiet crowd · UV 1 (low)

March

5/10

0–9°C (feels 5°C) · 11 rain days (111h) · 173 sun hours · 61% humidity · Quiet crowd · UV 2 (low)

April

6/10

4–13°C (feels 10°C) · 11 rain days (137h) · 202 sun hours · 56% humidity · Quiet crowd · UV 3 (moderate)

May

8/10

9–19°C (feels 16°C) · 10 rain days (109h) · 267 sun hours · 50% humidity · Quiet crowd · UV 4 (moderate)

August

8/10

16–25°C · 13 rain days (129h) · 242 sun hours · 58% humidity · Peak crowd · UV 5 (moderate)

October

6/10

7–14°C (feels 12°C) · 12 rain days (118h) · 142 sun hours · 73% humidity · Moderate crowd · UV 1 (low)

November

4/10

2–7°C (feels 4°C) · 9 rain days (119h) · 75 sun hours · 81% humidity · Peak crowd · UV 1 (low)

December

3/10

-1–3°C (feels -1°C) · 10 rain days (142h) · 49 sun hours · 84% humidity · Busy crowd

Frequently asked questions about visiting Warsaw

When is the best time to visit Warsaw?

September is the highest-scoring month (9/10 on the Holiday Climate Index). Typical conditions: 11–21°C (8 rainy days). The top three months by score are September, July, June.

What is the worst time to visit Warsaw?

January is the lowest-scoring month (3/10). Typical conditions: -1–3°C (14 rainy days).

When are crowds lowest in Warsaw?

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 Warsaw have good weather but fewer tourists?

May (climate 8/10, crowd index 5) and June (climate 8/10, crowd index 6) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.

What is the UV index in Warsaw by month?

UV peaks at 5 (moderate) in July and is lowest in January at 0 (low). Monthly peak values: Jan —, Feb 1, Mar 2, Apr 3, May 4, Jun 5, Jul 5, Aug 5, Sep 3, Oct 1, Nov 1, Dec —.

What is the UV index in Warsaw in July?

July is the peak UV month in Warsaw, with a daily-peak UV index of 5 (moderate). Standard sun protection — sunglasses and light SPF — is recommended.

How high can UV get in Warsaw 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. July is the worst case: typical days average UV 5 (moderate), but the top 10% of days reach UV 6 (high) — and even higher. Months where the sunniest days routinely exceed the typical reading: June, July. Plan sun protection for the worst case, not the average.

Is air quality in Warsaw bad for travelers?

PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 9 months: January, February, March, April, May, September, October, November, December. The worst month is January with a typical-day mean of 32 µg/m³ (unhealthy); on the worst 10% of days PM2.5 reaches 59 µg/m³ (hazardous) 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.