VacationSelector
The Outback, with the Tenmile Range in the distance, Keystone
KeystoneThe Outback, with the Tenmile Range in the distance
The Gateway of India under a blue sky, Mumbai
MumbaiThe Gateway of India under a blue sky

Photos: Keystone by Rudi Riet, CC BY-SA 2.0, cropped; Mumbai by Shubam Bhasin, Pexels License.

Keystone or Mumbai?

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 Keystone for

  • nature and the outdoors
  • families
  • getting around

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

Choose Mumbai for

  • culture and sights
  • prices
  • food and drink

What lies behind each score is written up on Mumbai’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. Keystone 5, Mumbai 18: Mumbai leads by 13 points.
Food & drink. Keystone 27, Mumbai 82: Mumbai leads by 55 points.
Culture & sights. Keystone 7, Mumbai 70: Mumbai leads by 63 points.
Nightlife. Keystone 12, Mumbai 52: Mumbai leads by 40 points.
Nature & outdoors. Keystone 93, Mumbai 55: Keystone leads by 38 points.
Day trips. Keystone 55, Mumbai 48: Keystone leads by 7 points.
Good for families. Keystone 66, Mumbai 35: Keystone leads by 31 points.
Getting around. Keystone 50, Mumbai 38: Keystone leads by 12 points.
Shopping & style. Keystone 22, Mumbai 66: Mumbai leads by 44 points.
Affordability. Keystone 12, Mumbai 72: Mumbai leads by 60 points.
Live music & performing arts. Keystone 22, Mumbai 55: Mumbai leads by 33 points.
Wellness & relaxation. Keystone 32, Mumbai 24: Keystone leads by 8 points.
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What lies behind each score is written up on the two cities’ own pages: Keystone and Mumbai.

Your match

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

Keystone
34match

Wins on nature and the outdoors and families with your weighting.

Mumbai
Best match
51match

Wins on culture and sights and prices with your weighting.

What matters to you?

When should you go?

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

Keystone in July

21 °Cdaytime high
5 °Cnight-time low
39 mmrain in the month
No recordsunshine a day
No seasea
15 hdaylight a day

Mumbai in July

31 °Cdaytime high
26 °Cnight-time low
860 mmrain in the month
2 hsunshine a day
29 °Csea
13 hdaylight a day

Daytime high, °C

-10°0°10°20°30°40°JFMAMJJASOND

Rainfall in the month, mm

02004006008001000JFMAMJJASOND
KeystoneMumbai

Where the figures come from

Keystone's temperatures are measured 51 km from the centre, at Leadville / Stringtown.

Keystone's station stands 232 m above the city centre, so the centre is likely a little warmer than the figures say.

Keystone 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.

Temperature and rainfall are climate normals, averaged over the years shown. Keystone: 2006-2020 (rainfall 1991-2020) normals, Leadville / Stringtown (50.8 km from centre). Mumbai: 1991-2020 normals, Bombay / Santacruz (5.4 km from centre).

Before you go

MeasureKeystoneMumbai
Official language-Hindi, English
CurrencyUS Dollar (USD)Indian Rupee (INR)
SocketsAB120 V, 60 HzCM230 V, 50 Hz
Driving sideRightLeft
Time zoneUTC-7, UTC-6 in summerUTC+5:30
Emergency number911108 or 112
Elevation2,796 m14 m
Main airportDenver International Airport (DEN)116 km from centre231 non-stop destinationsChhatrapati Shivaji Maharaj International Airport (BOM)2 km from centre122 non-stop destinations
Public holidays this year12 days-

By the numbers

MeasureKeystoneMumbai
City population1,36915,414,288
People per km²1325,563
Museums within 10 km01
UNESCO World Heritage sites within 50 km03
Swim season, months above 21 °C-12 months

Where else could you go?

Every comparison below shares a destination with this one, so you can follow Keystone or Mumbai 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). Public holidays from Nager.Date (MIT). Exchange rates via Frankfurter, based on European Central Bank reference rates. 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. 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 2026-11-02. Daily budgets are estimates from country price levels.