Vejret i Washington (DC) i august
Washington i august: trykkende hedt, regnfuldt — fint, hvis du kan klare eftermiddage på 35 °C.
Opdateret september 2026 · klimanormaler fra ERA5-reanalysen
Nr. 8 af 12 måneder i Washington · Nr. 938 af 1413 rejsemål at besøge i august · komfort 70/100 (niveau B)
- Dage
- 31°C
- Nætter
- 21°C
- Våde dage
- 9
- Sol
- 10.5 h
- Luftfugtighed
- 74%
- Dagslys
- 14 h

Noter fra rejsende om Washington i august
Andre måneder i Washington
June here is hot and humid but not yet August, and regulars are precise about the pattern: mid to high eighties by day, sixties at night, and afternoon thunderstorms that come out of nowhere, rain hard for a few minutes and leave the air more humid than before. Our row gives 29.7C reading as 32C over 18.6C nights, with 107.1mm across 9.4 days, which is eleven millimetres a time. Their packing advice follows the humidity - loose natural fibres in light colours, because synthetics turn into plastic bags - and their warning is the opposite problem, that indoor air conditioning is usually set far too cold. The record: humidity 69 percent, 11.4 hours of sun and AQI 68.
Regulars time this city by the school calendar. Labour Day is the first Monday of September and ends the summer season; October brings the school groups back in force; the fortnight between is the quietest good weather of the year. The weather follows the same split - the first week is still summer, mid-80s with the humidity to match, and the drier air does not usually arrive until mid-to-late month. Our row averages 27.8C reading as 30C at 74 percent humidity with a 16.1C dew point, over 17.3C nights, and 108.4mm of rain across 8.1 days. Book the second half if you can. The record: 8.6 hours of sun and AQI 47.
Washington DC-forum threads on late May draw a before/after line at Memorial Day: earlier in the month runs fair and warm with just the odd afternoon thunderstorm, while posters note humidity climbs noticeably by late May and into June, ahead of July and August's muggier stretch. The record backs the thunderstorm read more than the 'dry spring' reputation: 137mm of rain across more than twelve days, the wettest month on this destination's calendar, alongside 24.6C days, 13.4C nights and 9.3 hours of sun. Good jacket-optional weather, but pack for rain more than forum nostalgia about 'before the humidity' suggests.
Washington DC forum threads describe January as genuinely the coldest month, with average highs in the low 40s Fahrenheit and lows in the mid-20s, plus real wind chill that makes it feel colder still. A typical winter brings around 6 inches of snow total for the month in smaller spurts rather than one big dump, though posters noted an occasional major coastal storm can bring far more at once - DC still gets meaningfully less snow than cities like Boston given its more southern, coastal-influenced position. The consistent packing advice: several thinner warm layers under a proper coat work better than one very thick jacket, plus wool accessories that handle wet weather better than cotton.
Noterne for hele året findes på oversigten over Washington. Tilføj din egen note fra Washington på kortet.
Klimanormaler for Washington — august
Månedsgennemsnit fra ERA5-reanalysen. AQI er det gennemsnitlige amerikanske luftkvalitetsindeks for måneden.
Travlhed i Washington i august
Hvor travlt der er på selve stedet — skoleferier og masseferier, de måneder en redaktør har markeret, og hvor eftertragtet vejret gør dem. Aldrig en del af komfortscoren.
TravltSummer break i United States, skoleferie på 2 af de markeder, der fylder stedet(anslået)
TætpakketTravltSkuldersæsonStille
Bedste måneder for vejret i Washington
Rangeret efter dette rejsemåls egen klimakomfortscore året igennem — noget andet end, hvor travlt der bliver (se Travlhed ovenfor).
Pænt vejrDet bedste vejr i Washington kommer i april, maj og oktober — adskilte vinduer, ikke én sammenhængende sæson.
Bedste vejrPænt vejrHårdeste vejr
Det sker i Washington i august
Tilbagevendende sæsonbegivenheder, naturfænomener, lukninger og helligdage — kurateret og med kilder.
- Regel
Washington Monument timed tickets
1. jan. – 31. dec.Book tidligtThe lift to the top runs on timed tickets released online a month ahead, with a small same-day batch in the morning. The African American History museum works the same way in the busy months. Kilde ↗
- Risiko
Summer heat and humidity
20. jun. – 5. sep. · normaltEkstrem varmeThe city was built on a river flat and the summer behaves accordingly, with afternoon thunderstorms and heat advisories through July and August. The monuments walk is best done at seven in the morning. Kilde ↗
- Sæson
August recess
1. aug. – 5. sep.Lukket uden for sæsonenCongress goes home, the lobbying and lawyer city empties with it, and downtown restaurants that live on expense accounts run their quiet weeks. Hotel rates fall while the museums stay open.
Lige i nærheden sker der noget
Inden for 300 km fra Washington — en dagstur eller et kort hop — hvor der sker noget denne måned. Aldrig en del af komfortscoren.
Hvor ligger Washington?
Washington i august — ofte stillede spørgsmål
- Er august et godt tidspunkt at besøge Washington?
- Washington i august: trykkende hedt, regnfuldt — fint, hvis du kan klare eftermiddage på 35 °C. Måneden ligger nr. 8 ud af 12 for Washington på SeasonMaps komfortscore (70/100).
- Hvordan er vejret i Washington i august?
- I august har Washington i gennemsnit en dagtemperatur på 31.4 °C og en nattemperatur på 21 °C, med omkring 121.6 mm regn fordelt på cirka 9.1 regnvejrsdage.
- Hvordan er luftkvaliteten i Washington i august?
- Washington har et gennemsnitligt amerikansk luftkvalitetsindeks på omkring 64 i august.
Inden for 300 km: Virginia Beach's East Coast Surfing Championships, omkring 17.–24. aug. og Baltimore's Chesapeake blue crab season, 1. apr. – 30. nov..