Winter 2021 forecast for South America: From snow to tropical rainfall

In last articles, we have looked at Summer 2021 forecasts for Europe /, North America /, Asia / and Winter 2021 forecast for Australia / Now remains Winter 2021 forecast for South America and Summer/Winter forecast for Africa.

Autumn 2021 (MAM) forecast for South America you will find here:

Within winter forecast, we decided to make seasonal outlook in better resolution, provincially.

Leading, but weakening pattern La nina will bring many effects to weather in South America during upcoming winter. It will be mainly cold and dry western coast and stormy north.

Many central parts, Andes, southern and eastern Brazil, northern Argentina and central Chile should be very warm and regionally dry.

Stormy will be mainly northern and eastern Amazon.

Drought is expected except of southern and eastern Brazil in borders of Brazil, Paraguay, Bolivia and Argentina, too.

Winter should be relatively cruel in southern Patagonia /but probably not so much as in 2020: - in Chile with heavy snowstorms, in Argentinian part drier, but still with neutral or colder temperature anomalies from, long term average.

Western Antarctica is forecasted to be very cold in the Winter 2021, what should despite of AAO+ bring severe coldwaves into Subantarctic, Moderate and Subtropic climate zone.

Such as in 2020, should surprise mega coldwave, which should move up to equator /;

Above average Hurricane season 2021 should hit by its edges mainly northern parts of South America, e.g. Colombia, Venezuela, Trinidad and Tobago or Guyana and Suriname.

Expected NAO+ should effect northeastern parts of continent only mininally.

Wet MJO with severe storms (equatorial, subequatorial region) will appear around 15. May 2021, but longer outlook is not available.

Infographics - Sources:

Charts | ECMWF

CFSv2 Seasonal Climate Forecasts (

CPC - Climate Weather Linkage: Madden - Julian Oscillation (

The Quasi-biennial Oscillation (QBO) (

CPC - Daily Antarctic Oscillation Index (

Expected ENSO (La nina) evolution
Expected monthly NAO index
Evolution of AAO index in last months /NOAA
Tropical activity anomalies from April to September 2021
CFSv2 forecasts - temperature anomaly, precipitation anomaly and geopotential anomaly

40-day MJO forecast
Evolution of QBO in last period

Read more:

(Visited 127 times, 1 visits today)
Liked it? Take a second to support mkweather on Patreon!
Tags10 day forecast14 day forecast15 day forecast16 day forecastAdana forecastAfrica forecastAfrica winter summr forecastAlbania weatherAleutian lowAmarilloAndes winter forecastAntarctica weatherAntarctica winter forecast 2021AO indexArctic airArctic AmplificationArctic blastArctic oscillationArgentina winter foreccastAsia extreme weatherAsia forecastAsia severe weatherAsia summer 2021 forecastAthens forecastAtlantaAtmospheric blockingAustralia forecastAustraliawinter 2021 forecastAustria weatherBerlin forecastblizzardblocking patternBogota winter forecastBolivia winter forecastBordeaux forecastBostonBuenos Aires winter forecastBuffaloCAIRO FORECASTCalgaryCanadaCanada long term forecastCanada severe weatherCaracwinter forecastCasperCheyenneChicagoChile winter forecastCHISINAU FORECASTClevelandclimate changeCOBENHAGEN FORECASTcold blastcold spellcold weatherColombia winter forecastCordoba forecastCORK FORECAST CROATIA WEATHER FORECASTCOVID-19cycloneDenverdroughtdrought forecast winterdrought winter South America forecastdryDRY SEASONDuluthEcuador winter forecastEdmontonENSO summer South Amercia forecastEuropeEurope 2021 forecastEurope extreme weatherEurope long term forecastEurope severe weatherEurope snow forecastEurope temperature forecastEXTREME CIRCULATIONextreme cold weatherEXTREME FORECASTextreme frostsEXTREME LOW TEMPERATURESEXTREME SPRING FORECASTEXTREME TEMPERATURES USAEXTREME WEATHER 2021extreme weather Canadaextreme weather Europeextreme weather USAFinland weatherfloodsforecastFORECAST ALGIERSFORECAST ANKARAFORECAST ANTALYAFORECAST BARCELONAforecast BelarusFORECAST BELEGRADEFORECAST BELFAST FORECAST BELGIUMFORECAST BIALSKO BIALAFORECAST BIRMINGHAMFORECAST BRIGHTONFORECAST BRISTOLFORECAST BRNOFORECAST BUCHARESTforecast Bulgariaforecast CanadaFORECAST CARDIFFFORECAST CHINAforecast CzechiaFORECAST DENMARKFORECAST DONETSKFORECAST DUBLINFORECAST DUBROVNIKFORECAST EDINBURGHFORECAST EGYPTFORECAST ESTONIAforecast EuropeFORECAST FRANKFURTFORECAST GENEVEFORECAST GENOAFORECAST GOTEBORGFORECAST ICELANDFORECAST SAN FRANCISCOforecast USAFrance weatherfrostsGalapagos wintforecastGreat Lakes forecastGreece weatherGreenland highGuyana winter forecastHamburg forecastheatwaveheavy rainHelenaHELSINKI FORECASTHeraklion forecasthistoric frostshot weatherHoustonhumidhumidexhurricaneICE RAINIcelandic lowInnsbruck forecastInternational FallsIRELAND WEATHER FORECASTIstanbul forecastItaly weatherIzmir forecastJapan forecastJapan weatherKansas CityKARASJOK FORECASTKOELN FORECASTKorea forecastKOSOVO WEATHER FORECASTKRAKOW FORECASTKYIV FORECASTLa Coruna forecastLa nina South America forecast summerLa Paz winter forecastlandslidesLATVIA WEATHER FORECASTLE HAVRE FORECASTLIBYA WEATHER FORECASTLima winter forecastLisbon forecastLITHUANIA WEATHER FORECASTLJUBLJANA FORECASTLODZ FORECASTLondon forecastlong-term forecastLos AngelesLULEA FORECASTLUXEMBOURG WEATHER FORECASTLYON FORECASTMadrid forecastMalaga forecastMALTA WEATHER FORECASTManaus winter forecastMANCHESTER FORECASTMARSEILLE FORECASTMiamiMid-Atlantic forecastMiddle East forecastMIDDLE EAST WEATHER FORECASTMidwest forecastMILAN FORECASTMINSK FORECASTMJO South AmericforecastMOLDOVA WEATHER FORECASTMongolia forecastmonsoonmonsoon AsiaMONTENEGRO WEATHER FORECASTMontrealMOROCCO WEATHER FORECASTMOSCOW FORECASTMunich forecastMURCIA FORECASTNAO indexNAO-NAPLES FORECASTnegative phase Arctic oscillationnegative phase NAONETHERLANDS WEATHER FORECASTNew YorkNEW ZEALAND FORECSASTNICOSIA FORECASTNOAANorth America summer 2021 forecastNorth Atlantic OscillationNORTH MACEDONIA WEATHER FORECASTNORTH PACIFIC LOW PRESSURENortheast forecastNorthern HemisphereNorthern Plains forecastNorthwest forecastNorway weatherNOVOSIBIRSK FORECASTODESA FORECASTOklahoma CityOrlandoOSLO FORECASTOttawaOULU FORECASTOymyakon forecastParaguay winter forecastParis forecastPEAK WEATHERPeru winter forecastPhiladelphiaPhoenixPittsburghPODGORICA FORECASTPOLAND WEATHER FORECASTpolar vortexPorto forecastPORTUGAL WEATHER FORECASTPrague forecastPRISTINA FORECASTQBOQuebecRABAT FORECASTRAINY SEASONRapid CityREYKYAVIK FORECASTRIGA FORECASTRocky MountainsROMANIA WEATHER FORECASTRussia extreme frostsRussia forecastSAHARA FORECASTSAmerica winter 2021SANKT PETERSBURG FORECASTSantiago de Chile winter forecastSao Paulo winter forecasRio de Janeiro winter forecastSCOTLAND WEATHER FORECATSEASONAL FORECAST USASeattleSERBIA WEATHER FORECASTsevere frostsSEVERE WEATHE RUSASevilla forecastShetlands winter forecastSiberian blastSiberian highSioux Fallsski center Europe forecastSKOPJE FOECASTSLOVAKIA WEATHER FORECASTSLOVENIA WEATHER FORECASTsnow Patagonia forecast winter 2Patagonia wintr 2021 forecastsnowstormSOFIA FORECASTSOUTH AMERICA FORECASTSouth America long term forecastSouth America seasonal forecastSouth America winter 2021 forecastSouth America winter forecastSouth America winter forecastBrazil winter forecastSouth America winter outlookSouth America winter predictionsSouthemisphere forecastSOUTHERN USA FORECASTSouthwest forecastSPAIN WEATHER FORECASTSTOCKHOLM EXTREME SPRING FORECASTstormstorm forecaststorms South America forecastSWEDEN EXTREME WEATHER FORECASTSWITZERLAND WEATHER FORECASTTALLIN FORECASTtemperature recordtemperature recordsthunderstormTIRANA FORECASTTorontoTORSHAVN FORECASTTROMSO FORECASTtropical cycloneTropical depressiontropical stormTROPICAL SYSTEMtropicaltidbitsTulsaTUNIS FORECASTTURKEY WEATHER FORECASTtyphoonUK weather forecastUKRAINE WEATHER FORECASTUruguay winter forecastUSUSA extreme cold blastUSA extreme weatherUSA forecastUSA long term forecastVancouverVenezuela winter forecastVILNIUS FORECASTWales weatherwarm spellwarm weatherWARSAW FORECASTWEATHER 2021 USAWEATHER FORECAST BERGENWEATHER FORECAST CANADAWEATHER FORECAST ENGLANDWEATHER FORECAST ERZURUMweather forecast europeWEATHER FORECAST USAweather outlookWEATHER OUTLOOK USAWEATHER PROGNOSIS USAwetwetterzentralewinter forecastwxchartsZAGREB FORECASTZURRICH FORECAST



Widget for web.