VacationSelector
San Petronio on Piazza Maggiore, Bologna
BolognaSan Petronio on Piazza Maggiore
The Botanical Building, Balboa Park, San Diego
San DiegoThe Botanical Building, Balboa Park

Photos: Bologna by Vanni Lazzari, CC BY-SA 4.0, cropped; San Diego by Bernard Gagnon, CC BY-SA 3.0, cropped.

Bologna or San Diego?

Our verdict in twelve categories, each scored against the same fixed benchmark cities, and the climate month by month, so you can choose for your trip.

Choose Bologna for

  • getting around
  • day trips
  • culture and sights

What lies behind each score is written up on Bologna’s own page.

Choose San Diego for

  • families
  • beaches
  • nature and the outdoors

What lies behind each score is written up on San Diego’s own page.

Scoreboard

Twelve categories on one fixed scale from 0 to 100. The shaded stretch is the gap between the two.

Beaches & swimming. Bologna 30, San Diego 72: San Diego leads by 42 points.
Food & drink. Bologna 82, San Diego 62: Bologna leads by 20 points.
Culture & sights. Bologna 77, San Diego 50: Bologna leads by 27 points.
Nightlife. Bologna 58, San Diego 48: Bologna leads by 10 points.
Nature & outdoors. Bologna 52, San Diego 77: San Diego leads by 25 points.
Day trips. Bologna 95, San Diego 60: Bologna leads by 35 points.
Good for families. Bologna 50, San Diego 96: San Diego leads by 46 points.
Getting around. Bologna 76, San Diego 38: Bologna leads by 38 points.
Shopping & style. Bologna 55, San Diego 44: Bologna leads by 11 points.
Affordability. Bologna 48, San Diego 26: Bologna leads by 22 points.
Live music & performing arts. Bologna 60, San Diego 56: Bologna leads by 4 points.
Wellness & relaxation. Bologna 40, San Diego 45: San Diego leads by 5 points.
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What lies behind each score is written up on the two cities’ own pages: Bologna and San Diego.

Your match

Pick a travel style or drag the sliders, and both match scores follow your weighting.

Bologna
Best match
60match

Wins on getting around and day trips with your weighting.

San Diego
56match

Wins on families and beaches with your weighting.

What matters to you?

When should you go?

Pick your month. The climate figures are measured averages, not a forecast.

Bologna in July

32 °Cdaytime high
20 °Cnight-time low
39 mmrain in the month
11 hsunshine a day
No seasea
15 hdaylight a day

San Diego in July

24 °Cdaytime high
19 °Cnight-time low
2 mmrain in the month
No recordsunshine a day
20 °Csea
14 hdaylight a day

Daytime high, °C

0°10°20°30°40°JFMAMJJASOND

Rainfall in the month, mm

020406080100JFMAMJJASOND
BolognaSan Diego

Where the figures come from

Bologna has no rain gauge within 25 km of the centre, so its rainfall comes from a gridded climate dataset read at the city rather than from a gauge further away.

Bologna's sunshine is measured 82 km from the centre, at Cervia.

Temperature and rainfall are climate normals, averaged over the years shown. Bologna: 1991-2020 normals, Bologna / Borgo Panigale (5.5 km from centre). San Diego: 1991-2020 normals, San Diego International Airport (2.8 km from centre).

Before you go

MeasureBolognaSan Diego
Official languageItalian-
CurrencyEuro (EUR)US Dollar (USD)
SocketsCFL230 V, 50 HzAB120 V, 60 Hz
Driving sideRightRight
Time zoneUTC+1, UTC+2 in summerUTC-8, UTC-7 in summer
Emergency number112911
Elevation54 m129 m
Main airportBologna Guglielmo Marconi Airport (BLQ)6 km from centre98 non-stop destinationsSan Diego International Airport (SAN)3 km from centre87 non-stop destinations
Public holidays this year13 days13 days

By the numbers

MeasureBolognaSan Diego
City population387,9711,386,932
People per km²2,7541,438
Museums within 10 km6826
UNESCO World Heritage sites within 50 km30
Swim season, months above 21 °C-1 month

Where else could you go?

Every comparison below shares a destination with this one, so you can follow Bologna or San Diego somewhere new.

Browse every destination

Sources

Structured data from Wikidata (CC0). Weather data by Meteostat. Meteorological data provided by NOAA, DWD and others. Rainfall where no rain gauge is within 25 km is from the TerraClimate 1991-2020 climatology (Abatzoglou et al. 2018, Scientific Data), read at the city. Airport data from OurAirports (public domain). Tourism statistics from Eurostat, © European Union, reused under CC BY 4.0. Public holidays from Nager.Date (MIT). Non-stop route lists from the "Airlines and destinations" tables on English Wikipedia airport articles, by Wikipedia contributors, reused under CC BY-SA 4.0. Currency from the ISO 4217 register maintained by SIX, cross-checked against country data from GeoNames (CC BY 4.0). Price level from World Bank open data (PPP conversion factor for private consumption and official exchange rate), CC BY 4.0. Time zones from GeoNames (CC BY 4.0); clock offsets computed from the IANA time zone database. Sea surface temperature from NOAA OISST v2.1, NOAA Physical Sciences Laboratory. Exchange rates via Frankfurter, based on European Central Bank reference rates. Daylight hours computed from each destination's latitude using the NOAA solar position algorithm.

Category scores are our editorial verdict under rubric v3, each placed against the same fixed benchmark cities; the climate figures are measured. How the scores are set. Snapshot generated 2026-11-01. Daily budgets are estimates from country price levels.