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Quito vs Siem Reap

Cfb Oceanic / temperateAw Tropical savanna (dry winter)

Comparing Quito change · Siem Reap change

Bottom line

Siem Reap is the warmer of the two — about 10°C on the annual average; Quito is the wetter, with 1563 mm more rain a year, and Siem Reap the sunnier.

Warmer Siem Reap 10°C on the year
Wetter Quito 1563 mm more a year
Sunnier Siem Reap 14 pp less cloud
Colder winters Quito 5°C colder nights

How the seasons compare

The differences between Quito and Siem Reap, in everyday terms.

Summers

Siem Reap has far hotter summers

Quito: Mild
Siem Reap: Very hot

Winters

Siem Reap has milder winters

Quito: Mild
Siem Reap: Stays warm

Rain & snow

Quito is wetter

Quito: Very wet
Siem Reap: Wet

Sky

Siem Reap is sunnier

Quito: Often grey
Siem Reap: Often cloudy

Month-by-month charts

Temperature

Siem Reap is the warmer of the two — about 10°C on the annual average.

10°20°30°40°50° JanAprJulOct QuitoSiem Reap

Precipitation

Quito is the wetter — about 1563 mm more across the year.

PRECIPITATION (mm) 0170340 JanAprJulOct QuitoSiem Reap

Clear skies

Siem Reap has the clearer skies — the higher line.

0%25%50%75%100% JanAprJulOct QuitoSiem Reap

Exact monthly numbers

Tap a metric to open its full table. Desktop shows all twelve months; on a phone each metric splits into Jan–Jun and Jul–Dec.

Avg high (°C) Siem Reap runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Quito222222232324242525232322
Siem Reap313335363534333232313130
Difference+9+11+13+14+12+10+9+8+7+8+9+8
Jan – JunJanFebMarAprMayJun
Quito222222232324
Siem Reap313335363534
Difference+9+11+13+14+12+10
Jul – DecJulAugSepOctNovDec
Quito242525232322
Siem Reap333232313130
Difference+9+8+7+8+9+8
Avg low (°C) Siem Reap runs higher most of the year
JanFebMarAprMayJunJulAugSepOctNovDec
Quito141414141413121213131313
Siem Reap182023252525252424232118
Difference+5+6+9+10+11+12+12+12+12+10+8+5
Jan – JunJanFebMarAprMayJun
Quito141414141413
Siem Reap182023252525
Difference+5+6+9+10+11+12
Jul – DecJulAugSepOctNovDec
Quito121213131313
Siem Reap252424232118
Difference+12+12+12+10+8+5
Precipitation (mm) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Quito294281334329270166126129219286303309
Siem Reap71156812021992232543021063013
Difference-288-270-277-248-68+32+96+125+83-179-273-296
Jan – JunJanFebMarAprMayJun
Quito294281334329270166
Siem Reap7115681202199
Difference-288-270-277-248-68+32
Jul – DecJulAugSepOctNovDec
Quito126129219286303309
Siem Reap2232543021063013
Difference+96+125+83-179-273-296
Cloud cover (%) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Quito818488858175727175818181
Siem Reap364053667985878988695042
Difference-45-44-35-19-2+10+15+18+12-12-31-39
Jan – JunJanFebMarAprMayJun
Quito818488858175
Siem Reap364053667985
Difference-45-44-35-19-2+10
Jul – DecJulAugSepOctNovDec
Quito727175818181
Siem Reap878988695042
Difference+15+18+12-12-31-39
Relative humidity (%) Varies through the year
JanFebMarAprMayJunJulAugSepOctNovDec
Quito868787868481787576808284
Siem Reap554950597483868889867966
Difference-31-38-36-27-10+3+8+13+12+6-3-18
Jan – JunJanFebMarAprMayJun
Quito868787868481
Siem Reap554950597483
Difference-31-38-36-27-10+3
Jul – DecJulAugSepOctNovDec
Quito787576808284
Siem Reap868889867966
Difference+8+13+12+6-3-18

How both climates are changing

Both cities are warming. Each city has its own warming trend; see its trends page for the year-by-year detail. Quito trends → · Siem Reap trends →

Methodology & sources

Quito

Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

Siem Reap

Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Surin, a weather station, about 174 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →