0xCarbon
United Kingdom · 51.78°, 0.11° · 68 m

Harlow

Harlow, United Kingdom
Photo: Steve Cadman from London, U.K., CC BY-SA 2.0, via Wikimedia Commons

Reaching Harlow from Brussels emits 12.2 kg CO₂e return by rail (5h 30m each way) against 78.5 kg by air — 6× the carbon. It averages 17.7 °C in August and 4.6 °C in January.

Harlow is a New Town in Essex which was mostly developed after the Second World War. — Wikivoyage, CC BY-SA 4.0

When to go: Harlow is warmest in August (17.7 °C), sunniest in June (12.9 h a day); coldest in January (4.6 °C). Month by month

12.2kg CO₂e return by rail, from Brussels
83.8kg CO₂e return by air, from Amsterdam
12.9hours of sunshine a day in June, its brightest month

Getting there

Return carbon and one-way journey time to Harlow. Times are modelled.
FromDistanceBy railRail timeBy airAir time
Amsterdam333 km13.3 kg7h 24m83.8 kg3h 54m
Barcelona1,165 km36.3 kg13h 54m293 kg5h 6m
Berlin910 km30.3 kg13h 48m229 kg4h 42m
Birmingham158 km12.7 kg3h 48m72.5 kg3h 42m
Bristol190 km15.3 kg4h 12m87.3 kg3h 48m
Brussels312 km12.2 kg5h 30m78.5 kg3h 54m
Cardiff230 km18.5 kg4h 48m105 kg3h 48m
Copenhagen925 km30.9 kg19h 24m233 kg4h 42m
Dublin463 km——117 kg4h 6m
Edinburgh512 km41.2 kg7h 12m235 kg4h 12m
Frankfurt628 km21.6 kg9h 36m158 kg4h 18m
Glasgow537 km43.2 kg7h 24m246 kg4h 12m
Leeds251 km20.2 kg5h 6m115 kg3h 48m
Lisbon1,619 km49.5 kg31h 24m407 kg5h 42m
Liverpool277 km22.2 kg5h 6m127 kg3h 54m
Madrid1,297 km40.0 kg17h 30m326 kg5h 12m
Manchester247 km19.9 kg5h113 kg3h 48m
Milan967 km31.1 kg14h 12m243 kg4h 48m
Munich913 km29.8 kg12h 54m230 kg4h 42m
Newcastle373 km30.0 kg5h 42m171 kg4h
Nottingham156 km12.6 kg3h 42m71.7 kg3h 42m
Oslo1,119 km36.8 kg28h 54m282 kg5h
Paris362 km12.9 kg5h 48m91.0 kg4h
Prague1,018 km33.2 kg19h 18m256 kg4h 54m
Rome1,444 km45.1 kg18h 12m363 kg5h 24m
Sheffield208 km16.7 kg4h 30m95.4 kg3h 48m
Stockholm1,400 km45.0 kg25h 42m352 kg5h 24m
Vienna1,225 km39.2 kg18h308 kg5h 6m
Warsaw1,427 km45.5 kg21h 18m359 kg5h 24m
Zurich781 km25.7 kg11h 18m196 kg4h 30m

The year in Harlow

Average temperature, °C — warmest in August
January: 4.6 °C4.6 °CJanFebruary: 6.9 °CFebMarch: 7.5 °CMarApril: 8.9 °CAprMay: 12.8 °CMayJune: 16.3 °CJunJuly: 17.1 °CJulAugust: 17.7 °C17.7 °CAugSeptember: 16.4 °CSepOctober: 12.2 °COctNovember: 7.3 °CNovDecember: 7.1 °CDec
Sunshine, hours a day — brightest in June
January: 4.8 hJanFebruary: 4.5 hFebMarch: 5.0 hMarApril: 8.6 hAprMay: 10.3 hMayJune: 12.9 h12.9 hJunJuly: 10.6 hJulAugust: 10.5 hAugSeptember: 8.4 hSepOctober: 6.1 hOctNovember: 4.3 hNovDecember: 2.7 h2.7 hDec
Historical daily means for 2023–2024, by month (ERA5 reanalysis) — averaged across day and night
 JanFebMarAprMayJunJulAugSepOctNovDec
Temp °C4.66.97.58.912.816.317.117.716.412.27.37.1
Sun h/day4.84.55.08.610.312.910.610.58.46.14.32.7
Rain mm/day1.92.23.12.42.51.13.11.63.42.72.52.2

When to go

Harlow is warmest in August at 17.7 °C but brightest in June, averaging 12.9 hours of sun a day — the two do not always coincide, which is worth knowing before booking. Its coldest is January at 4.6 °C.

Three months worth booking

The same year of measurements, decided rather than tabulated. Each opens the map below on dates in that month.

Staying there

A hotel room in United Kingdom emits about 10.4 kg CO₂e per night under UK Government 2026 factors — a country average per occupied room, not this or any particular hotel. 7 nights in one room adds roughly 73 kg — about 6.0× the carbon of one person getting there by rail from Brussels. Two sharing the room halve that share each; the journey does not halve.

Where to stay in Harlow

Places to stay in Harlow, United Kingdom, on a live map. Prices and availability come from Stay22 and its booking partners.

Search places to stay in Harlow →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.

Distances are great-circle. Rail assumes international rail at 0.01135 kg CO₂e per passenger-km with a 1.3× track detour allowance; flights use 0.12576 kg per passenger-km including radiative forcing. Journey times are modelled, not timetabled. Full method.