Compare the Climate and Weather in Reunion and London

This page lets you compare and contrast the weather and climate in Reunion and London year round.

You can drill down to a specific season, month, and even day by clicking the graphs or using the navigation panel.

You can compare up to 6 locations. Add more locations using the search box below or by clicking the map.

Reunion *
Réunion
London
United Kingdom
Map

Average High and Low Temperature

Compare the Average High and Low Temperature in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F756586776039479477337345NowNowLondonLondonReunionReunion
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
HighJanFebMarAprMayJunJulAugSepOctNovDec
London 47°F48°F52°F58°F63°F69°F73°F72°F67°F60°F53°F49°F
JulAugSepOctNovDecJanFebMarAprMayJun
Reunion 77°F77°F78°F80°F82°F84°F85°F85°F85°F83°F81°F78°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
London 39°F39°F42°F45°F50°F55°F59°F59°F55°F50°F44°F41°F
JulAugSepOctNovDecJanFebMarAprMayJun
Reunion 66°F66°F66°F68°F71°F73°F75°F75°F74°F73°F70°F67°F

Reunion

Average Hourly Temperature in ReunionJul*Aug*Sep*Oct*Nov*Dec*Jan*Feb*Mar*Apr*May*Jun*12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcomfortablecomfortablecomfortablewarm

London

Average Hourly Temperature in LondonJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldcoldcoldcoolcomfortablevery coldvery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies

Compare the Chance of Clearer Skies in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%92375826NowNowLondonLondonReunionReunion
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
London 29%35%37%44%46%51%57%54%50%42%32%28%
JulAugSepOctNovDecJanFebMarAprMayJun
Reunion 90%91%91%82%67%46%38%40%47%63%81%90%

Daily Chance of Precipitation

Compare the Daily Chance of Precipitation in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%3663220NowNowLondonLondonReunionReunion
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
London 9.1d7.1d7.0d6.5d7.3d7.6d6.9d6.7d7.1d9.4d9.2d9.4d
JulAugSepOctNovDecJanFebMarAprMayJun
Reunion 2.0d2.4d2.1d2.4d3.2d6.1d8.8d10.2d8.9d6.0d3.9d2.1d

Average Monthly Rainfall

Compare the Average Monthly Rainfall in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in5.10.42.21.2NowNowLondonLondonReunionReunion
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
London 1.8″1.4″1.2″1.2″1.5″1.6″1.4″1.5″1.6″2.2″2.0″2.0″
JulAugSepOctNovDecJanFebMarAprMayJun
Reunion 0.4″0.5″0.4″0.5″0.9″2.2″3.8″5.1″3.6″2.1″1.0″0.4″

Hours of Daylight

Compare the Hours of Daylight in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr13.410.816.67.8NowNowLondonLondonReunionReunion
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
London 8.4h10.0h11.9h13.9h15.7h16.6h16.1h14.5h12.6h10.6h8.9h7.9h
JulAugSepOctNovDecJanFebMarAprMayJun
Reunion 11.0h11.4h12.0h12.6h13.1h13.4h13.3h12.8h12.2h11.6h11.1h10.9h

Chance of Muggy Conditions

Compare the Chance of Muggy Conditions in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%988NowNowLondonLondonReunionReunion
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
London 0.0d0.0d0.0d0.0d0.0d0.0d0.1d0.1d0.0d0.0d0.0d0.0d
JulAugSepOctNovDecJanFebMarAprMayJun
Reunion 3.1d2.7d4.4d10.4d19.0d27.0d29.7d28.3d29.5d25.9d16.6d6.3d

Average Wind Speed

Compare the Average Wind Speed in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph14.210.113.39.6NowNowLondonLondonReunionReunion
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
London 13.112.612.111.010.59.99.89.910.611.511.812.5
JulAugSepOctNovDecJanFebMarAprMayJun
Reunion 13.913.612.511.710.410.712.012.612.212.012.013.0

Average Water Temperature

Compare the Average Water Temperature in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F8274NaNNowNowReunionReunion
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
JulAugSepOctNovDecJanFebMarAprMayJun
Reunion 75°F74°F74°F75°F78°F80°F81°F82°F82°F81°F79°F77°F

Tourism Score

Compare the Tourism Score in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*002244668810108.94.27.10.4NowNowReunionReunion
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score

Compare the Beach/Pool Score in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*002244668810107.75.83.9NowNowLondonLondonReunionReunion
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season

Compare the Growing Season in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*0%0%20%20%40%40%60%60%80%80%100%100%NowNowLondonLondonReunionReunion
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days

Compare the Growing Degree Days in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°F10,000°F10,000°FNowNowLondonLondonReunionReunion
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy

Compare the Average Daily Incident Shortwave Solar Energy in Reunion and LondonJanJul*FebAug*MarSep*AprOct*MayNov*JunDec*JulJan*AugFeb*SepMar*OctApr*NovMay*DecJun*0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh7.53.96.40.6LondonLondonReunionReunion
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
London 0.81.72.94.65.76.36.25.33.82.21.10.7
JulAugSepOctNovDecJanFebMarAprMayJun
Reunion 4.04.85.96.97.47.26.86.45.95.24.43.9

This report illustrates the typical weather for Reunion and London year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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