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Warsaw · June · sunshine

Sunniest places to go from Warsaw in June

In June, the sunniest well-known place within 15 hours of Warsaw is Helsinki, Finland, 16.0 h of sun a day and 16.2 °C, about 4h 42m each way by air. Without flying, it is Västerås, Sweden, 15.2 h of sun a day, about 14h 12m each way by train, for about 9× less carbon (25.6 kg CO₂e return against 230 kg).

The 10 sunniest places within 15 hours of Warsaw

Ranked on sunshine in June alone, among well-known places (a Wikivoyage travel guide and at least 40,000 Wikipedia readers a year), one per area and at most three per country. The carbon is shown, not used to choose: the list further down is the other question, how much sunshine each extra kilogram buys.

  1. Helsinki, Finland16.0 h · 16.2 °C · mostly dry · sea 13.5 °Cair ≈ 4h 42m · 230 kg CO₂e return
  2. Oulu, Finland15.9 h · 15.3 °C · 1.9 mm rain a day · sea 15.4 °Cair ≈ 5h 24m · 363 kg CO₂e return
  3. Porvoo, Finland15.9 h · 17.1 °C · mostly dryair ≈ 4h 48m · 239 kg CO₂e return
  4. Luleå, Sweden15.8 h · 15.1 °C · 1.2 mm rain a day · sea 12.6 °Cair ≈ 5h 30m · 374 kg CO₂e return
  5. Tallinn, Estonia15.7 h · 16.4 °C · 2.2 mm rain a day · sea 13.7 °Cair ≈ 4h 36m · 210 kg CO₂e return
  6. Narva, Estonia15.7 h · 16.9 °C · 2.2 mm rain a dayair ≈ 4h 42m · 229 kg CO₂e return
  7. Gävle, Sweden15.5 h · 16.3 °C · 1.8 mm rain a day · sea 12.5 °Cair ≈ 4h 48m · 244 kg CO₂e return
  8. Umeå, Sweden15.3 h · 15.0 °C · 1.5 mm rain a day · sea 10.7 °Cair ≈ 5h 12m · 325 kg CO₂e return
  9. Tartu, Estonia14.9 h · 17.4 °C · 1.4 mm rain a dayair ≈ 4h 30m · 194 kg CO₂e return
  10. Oslo, Norway14.3 h · 16.5 °C · 3.3 mm rain a dayair ≈ 4h 54m · 267 kg CO₂e return

Without flying

The sunniest places the train reaches within 15 hours. Västerås is 15.2 h for 25.6 kg — about 9× less carbon than flying to Helsinki.

  1. Västerås, Sweden15.2 h · 17.0 °C · 1.8 mm rain a dayrail ≈ 14h 12m · 25.6 kg CO₂e return
  2. Uppsala, Sweden15.1 h · 16.7 °C · 2.0 mm rain a dayrail ≈ 14h 30m · 25.8 kg CO₂e return
  3. Stockholm, Sweden15.1 h · 16.8 °C · 1.9 mm rain a dayrail ≈ 13h 36m · 23.9 kg CO₂e return
  4. Karlstad, Sweden14.8 h · 17.0 °C · 2.3 mm rain a dayrail ≈ 14h 48m · 27.2 kg CO₂e return
  5. Aalborg, Denmark14.3 h · 15.8 °C · 2.4 mm rain a dayrail ≈ 14h 36m · 26.3 kg CO₂e return
  6. Liepāja, Latvia14.0 h · 16.7 °C · 2.4 mm rain a day · sea 14.2 °Crail ≈ 12h 12m · 14.0 kg CO₂e return

≈ is the model's estimate (air times include getting to and through the airport); ✓ is a rail journey checked against a real timetable, with the date it was checked. Temperatures are historical daily means for 2023–2024, averaged across day and night, so afternoons run warmer.

The low-carbon trade-off

The sunniest place you can reach from Warsaw in June within 15 hours is Helsinki, 16.0 h, costing 230 kg CO₂e return. The lowest-carbon option is Lublin at 4.5 kg — 51× less carbon, for 4.4 hours less sunshine.

Every destination here is on the efficiency frontier: nowhere else this site covers is both sunnier in June and lower in carbon. Anything a better option beats outright has been left out.

LublinHelsinki
Where they are. Solid lines are rail or ferry, dashed are flights, from Warsaw. Pick one to compare.
Carbon against sunshine, June, departing Warsaw. Journeys of up to 15 hours each way.8 destinations. Lowest carbon Lublin at 4.5 kilograms and 11.6 h; best for sunshine Helsinki at 230 kilograms and 16.0 h. Lublin · 4.5 kgStockholm · 23.9 kgHelsinki · 230 kg

By rail or ferry By air

Carbon against sunshine, June, departing Warsaw. Journeys of up to 15 hours each way.

What the 15-hour limit costs: at this budget Helsinki can only be reached by air — 230 kg CO₂e, in 4h 42m. Allow up to 24 hours and the train does the same journey for 27.0 kg in 23h 18m — 9× less carbon for 18h 36m more travelling.

June from Warsaw — 8 destinations on the frontier, 7 without flying.
DestinationHowCO₂e returnTempSun/dayRain/dayJourney
Lublin, PolandRail4.5 kg18.3 °C11.6 h2.9 mm3h 42m
Zdunska Wola, PolandRail4.7 kg19.1 °C12.4 h2.0 mm3h 48m
Olsztyn, PolandRail5.2 kg18.0 °C13.0 h1.8 mm4h
Bydgoszcz, PolandRail6.7 kg18.7 °C13.4 h1.8 mm4h 48m
Liepāja, LatviaRail14.0 kg16.7 °C14.0 h2.4 mm12h 12m
Visby, SwedenRail18.5 kg16.3 °C14.6 h1.2 mm10h 54m
Stockholm, SwedenRail23.9 kg16.8 °C15.1 h1.9 mm13h 36m
Helsinki, FinlandAir230 kg16.2 °C16.0 h1.1 mm4h 42m

Warm is not the same as pleasant, which is why sunshine and rainfall are shown alongside temperature. All three are ERA5 monthly means for 2023–2024.

Where the curve breaks

The frontier is gentle until it isn't. Going from Stockholm (23.9 kg, 15.1 h) to Helsinki (230 kg, 16.0 h) buys 0.9 hours more sunshine for an extra 206 kg — 229 kg of CO₂e per hour. That single step is the most expensive sunshine on the whole curve.

The pick of them

Lublin, PolandLublinPoland4.5 kg CO₂e return18.3 °C · 11.6 h sun · 3h 42m by railwarm overallStockholm, SwedenStockholmSweden23.9 kg CO₂e return16.8 °C · 15.1 h sun · 13h 36m by railwarm overallHelsinki, FinlandHelsinkiFinland230 kg CO₂e return16.2 °C · 16.0 h sun · 4h 42m by airwarm, bright and dry

The same month, asked differently

June answers differently depending on what you are after, and the lists genuinely diverge: the brightest places are not the hottest, and in summer the useful question stops being where is warm at all.

Where to stay in Helsinki

Places to stay in Helsinki, Finland, on a live map. Prices and availability come from Stay22 and its booking partners.

Search places to stay in Helsinki →Opens the booking search in a new tab. Same partners as the map below.

Affiliate disclosure. A booking made through this map may earn 0xCarbon a commission, at no extra cost to you. It changes nothing above it: the emissions figures come from UK Government conversion factors and are computed before anyone is paid anything.See the method.

Other months from Warsaw

June from elsewhere

Photo credits

Questions

Where is the sunniest place to go from Warsaw in June?

Helsinki, Finland, at 16.0 h. Reaching it emits 230 kg CO₂e return, travelling 4h 42m each way by air (modelled).

Can I get somewhere sunny from Warsaw in June without flying?

Yes. Stockholm reaches 15.1 h and is reachable by rail or ferry in 13h 36m (modelled), emitting 23.9 kg CO₂e return — though Helsinki is sunnier still, if you fly.

How much carbon does a return trip from Warsaw to Helsinki produce?

230 kg CO₂e for one person, return, by air. That uses the UK Government's 2026 conversion factors, including radiative forcing for flights.

Carbon uses UK Government (DESNZ/DEFRA) 2026 conversion factors applied to great-circle distance, with radiative forcing included for flights. Rail journey times are modelled estimates, not timetabled services. Full method · download the data.