Best time to visit Bologna

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 (?)
Heatwaves · days/yr ≥35°C ETCCDI TX35 (?)
<154
Tropical nights · nights/yr ≥20°C ETCCDI TR20 — sleep killer (?)
620192
UV index · On a typical day around midday, UV is about this (?)
123457765311
On the sunniest 1 in 10 days, UV reaches this — and even higher
4789864
PM2.5 air quality · on a typical day (?)
2724161199898121824
On the worst 1 in 10 days, PM2.5 reaches this — and even higher
473927171412111313203436
September 9/10 feels 26°C (+1°C vs 1991-2020) · HCI 91/100
Day 26° · Night 16° · cools 10° at night 54% humidity 14 km/h wind 9 rain days (79h) 231h sun
Thermal 10
Sky 10
Rain 8
Wind 10

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

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 Bologna

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

  1. 1Small Group Bologna Food Tour – Local Food & Market Experience4.97★ (936)4h 30mfrom $126🔥 Selling fast
  2. 2Bologna Market Tour & Cooking Class in Paola’s Garden Home4.88★ (33)2h 30mfrom $104🔥 Selling fast
  3. 3Bologna Food Tour and Enogastronomia Experience with Local Chef4.94★ (87)3h 40mfrom $108🔥 Selling fast
  4. 4Private Emilia Romagna Food Tour Full Day4.90★ (133)7hfrom $315🔥 Selling fast
  5. 5Bologna Small-Group Food Tour with Full Meal & Local Food Expert4.84★ (790)3h 30mfrom $69
  6. 6BEST MEDIEVAL VILLAGES GETAWAY - Private Day Tour from Bologna4.88★ (26)8hfrom $516🔥 Selling fast
  7. 7Bologna Food & Market Tour with Local Dishes, Pasta, Wines & More4.95★ (1,796)from $69🔥 Selling fast
  8. 8Bologna Food Tour by Taste Bologna: Intimate Group (Max 10)4.85★ (460)4hfrom $119
  9. 9Bologna Private Highlights & Hidden Gems Tour with a Local4.92★ (444)from $76
  10. 10Cesarine: Private Pasta Class & Meal at Local's Home in Bologna4.89★ (171)3hfrom $113
  11. 11Bologna Private Food Tour with 6 or 10 Tastings4.59★ (353)from $129
  12. 12Food and Wine Experience in Bologna, Italy4.96★ (82)45mfrom $33
  13. 13Highlights & Hidden Gems With Locals: Best of Bologna Private Tour4.92★ (78)3hfrom $191
  14. 14Ferrari Lamborghini Pagani Factories and Museums - Tour from Bologna4.83★ (201)8hfrom $527
  15. 15Cars&Food: Lambo, Ferrari, Parmigiano, Balsamic, PrivateTransport4.71★ (99)from $435
  16. 16Private Tour Parmigiano,Prosciutto,Balsamico with driver-Bologna4.92★ (60)from $447
  17. 17Bologna Local Pasta Cooking Class, Ragu, Spritz, Wine & Gelato4.97★ (1,190)3hfrom $68
  18. 18Bologna Pasta & Tiramisu Cooking Class With Wine by Cooking Italy4.94★ (1,000)3hfrom $68
  19. 19Bologna Food Tour: Taste Local Specialties, Pasta, Wine & Gelato4.91★ (1,258)3hfrom $91
  20. 20Historic Center Walking Tour in Bologna4.79★ (52)2hfrom $29
  21. 21Pastamama, Preserving the intimacy of Italian domestic cooking4.96★ (559)3hfrom $109
  22. 22Best of Bologna in one day : Food, architecture, art and history4.91★ (45)7hfrom $166
  23. 23Bologna Food Valley Small Group Factory Tasting and Winery Lunch4.95★ (311)8h 30mfrom $176
  24. 24Bologna on the plate, Cooking Class with Alessia4.87★ (358)3hfrom $91
  25. 25Bologna City Walking Tour4.52★ (848)2hfrom $32
  26. 26Eating Bologna Food and Wine Tour4.95★ (190)3hfrom $91
  27. 27Bologna : Private Custom Walking Tour With A Guide (Private Tour)4.89★ (37)from $52
  28. 28Secrets of Parmigiano Reggiano and Balsamic Vinegar4.94★ (81)6hfrom $172
  29. 29Bologna Private Food Tour with a Local: Pasta, Markets & Gelato4.94★ (36)3hfrom $213
  30. 30Bologna: Pasta, Tiramisu or Lasagna Class with Wine4.85★ (197)3hfrom $97

Last refreshed 2026-10-18.

Similar climatesModena97% · Verona97% · Sirmione96%

Other destinations with the most-alike year-round climate to Bologna (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 Bologna'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 1–8 6 7 87 12.4 78% 12 140 1 Moderate 5
Feb 4–12 10 5 60 12.0 67% 14 169 2 Moderate 7
Mar 5–15 12 7 85 12.1 58% 15 210 3 Quiet 7
Apr 8–18 16 8 96 12.0 54% 17 237 4 Peak 8
May 13–22 22 12 139 11.6 58% 16 249 5 Peak 8
Jun 18–28 29 8 75 9.4 50% 16 292 7 Quiet 8
Jul 21–32 33 6 44 7.3 45% 15 314 7 Quiet 5
Aug 20–31 32 8 59 7.4 46% 15 280 6 Quiet 6
Sep 16–26 26 9 79 8.8 54% 14 231 5 Peak 9
Oct 12–21 20 7 86 12.3 65% 14 178 3 Peak 8
Nov 6–13 11 8 93 11.6 74% 12 138 1 Moderate 6
Dec 2–9 6 11 129 11.7 81% 12 105 1 Moderate 5

UV Index in Bologna by Month

UV index in Bologna peaks at 7 (high) in July, dropping to 1 (low) in January. June, July, August have high UV — SPF 30+ and sunglasses recommended.

Best months in detail

September

9/10

16–26°C · 9 rain days (79h) · 231 sun hours · 54% humidity · Peak crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)

October

8/10

12–21°C · 7 rain days (86h) · 178 sun hours · 65% humidity · Peak crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)

June

8/10

18–28°C · 8 rain days (75h) · 292 sun hours · 50% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 8 (very high)

Every month

Show the other 9 months in detail

January

5/10

1–8°C (feels 6°C) · 7 rain days (87h) · 140 sun hours · 78% humidity · Moderate crowd · UV 1 (low)

February

7/10

4–12°C (feels 10°C) · 5 rain days (60h) · 169 sun hours · 67% humidity · Moderate crowd · UV 2 (low)

March

7/10

5–15°C (feels 12°C) · 7 rain days (85h) · 210 sun hours · 58% humidity · Quiet crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)

April

8/10

8–18°C (feels 16°C) · 8 rain days (96h) · 237 sun hours · 54% humidity · Peak crowd · UV 4 (moderate)

May

8/10

13–22°C · 12 rain days (139h) · 249 sun hours · 58% humidity · Peak crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)

July

5/10

21–32°C (feels 33°C) · 6 rain days (44h) · 314 sun hours · 45% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 9 (very high)

August

6/10

20–31°C (feels 32°C) · 8 rain days (59h) · 280 sun hours · 46% humidity · Quiet crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (high)

November

6/10

6–13°C (feels 11°C) · 8 rain days (93h) · 138 sun hours · 74% humidity · Moderate crowd · UV 1 (low)

December

5/10

2–9°C (feels 6°C) · 11 rain days (129h) · 105 sun hours · 81% humidity · Moderate crowd · UV 1 (low)

Frequently asked questions about visiting Bologna

When is the best time to visit Bologna?

September is the highest-scoring month (9/10 on the Holiday Climate Index). Typical conditions: 16–26°C (9 rainy days). The top three months by score are September, October, June.

What is the worst time to visit Bologna?

December is the lowest-scoring month (5/10). Typical conditions: 2–9°C (11 rainy days).

Is Bologna too hot in summer?

2 months (July, August) trip the heat deal-breaker in our scoring: apparent temperature crosses the comfort cap, so even with clear skies and low rain the score is held down. Plan around it if heat tolerance is low.

When are crowds lowest in Bologna?

Search-interest seasonality (Google Trends 2021-2025) is lowest in July and peaks in September. 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 Bologna have good weather but fewer tourists?

June (climate 8/10, crowd index 9) and February (climate 7/10, crowd index 44) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.

What is the UV index in Bologna by month?

UV peaks at 7 (high) in July and is lowest in January at 1 (low). Monthly peak values: Jan 1, Feb 2, Mar 3, Apr 4, May 5, Jun 7, Jul 7, Aug 6, Sep 5, Oct 3, Nov 1, Dec 1.

What is the UV index in Bologna in July?

July is the peak UV month in Bologna, with a daily-peak UV index of 7 (high). Apply SPF 30+, wear sunglasses, and seek shade during midday hours.

How high can UV get in Bologna 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 7 (high), but the top 10% of days reach UV 9 (very high) — and even higher. Months where the sunniest days routinely exceed the typical reading: March, May, June, July, August, September, October. Plan sun protection for the worst case, not the average.

Is air quality in Bologna bad for travelers?

PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 7 months: January, February, March, April, October, November, December. The worst month is January with a typical-day mean of 27 µg/m³ (unhealthy); on the worst 10% of days PM2.5 reaches 47 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.