Vejret i Boulder i juli
Boulder i juli: hedt, lidt regn — et fremragende tidspunkt at tage afsted.
Opdateret september 2026 · klimanormaler fra ERA5-reanalysen
Nr. 5 af 12 måneder i Boulder · Nr. 510 af 1413 rejsemål at besøge i juli · komfort 84/100 (niveau A)
- Dage
- 32°C
- Nætter
- 15°C
- Våde dage
- 9
- Sol
- 13.1 h
- Luftfugtighed
- 54%
- Dagslys
- 15 h

Noter fra rejsende om Boulder i juli
Noter fra Breckenridge i nærheden (88 km væk)
Boulder har ikke sine egne noter for juli endnu — disse handler om Breckenridge, tæt nok på til at dele sæsonen.
Breckenridge-forum threads on July are direct this high-elevation town rarely needs air conditioning, afternoon cloud building overhead on many days to bring welcome shade and falling temperatures before the sky clears again toward evening. Posters describe afternoon storm systems, sometimes tracking up from the south, as a standing possibility through the second half of summer, worth planning a big hike for the morning rather than the afternoon. Regulars are candid conditions here can occasionally turn surprisingly unsettled even in July, one poster recalling an unusually rough Fourth of July that dampened the fireworks visibility. Posters call the town genuinely crowded all summer, weekends especially busy, with a midweek visit recommended for anyone wanting a quieter trip. Regulars call both July and August strong picks for outdoor activity despite the crowds. The record: 23.2C days feeling like 22C, 5.9C nights, 59 percent humidity and 14.3 hours of daylight.
Andre måneder i Boulder
Forum posters describe March as Boulder's snowiest month on average, yet genuinely fickle - a 70F sunny day can be followed by two feet of snow the next. Posters are consistent that early March still sees bars, breweries, restaurants and music venues running in full swing regardless of weather. Posters recommend traction devices for hiking boots given the mix of clear and icy trail conditions, noting that Boulder's foothill trails typically stay open if there hasn't been a recent storm, while higher mountain trails often remain snowbound well into the month. Posters are direct that a storm disrupting travel plans is a real possibility that's impossible to predict far in advance, making a last-minute forecast check worthwhile. Posters generally rate March as genuinely unpredictable but workable for a Boulder visit, hiking gear and flexible plans the key preparation.
Forum posters describe September as sunny, mild and generally beautiful, typically 70sF by day and 50sF at night in the Boulder/Denver area - though they're candid it can occasionally swing from warm and sunny to unexpectedly cold with snow. Early September (before Labor Day and before fall color/elk rut kicks in around September 21) gets flagged as a genuine lull in visitation, with quieter trails and close-to-ideal hiking temperatures with a lower chance of afternoon thunderstorms. Visiting closer to late September trades that quiet for peak fall color and the elk rut in nearby Rocky Mountain National Park - one of the most popular windows of the year there.
Tilføj din egen note fra Boulder på kortet.
Klimanormaler for Boulder — juli
Månedsgennemsnit fra ERA5-reanalysen. AQI er det gennemsnitlige amerikanske luftkvalitetsindeks for måneden.
Travlhed i Boulder i juli
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 Boulder
Rangeret efter dette rejsemåls egen klimakomfortscore året igennem — noget andet end, hvor travlt der bliver (se Travlhed ovenfor).
Pænt vejrDet bedste vejr i Boulder kommer i juni, august og september — adskilte vinduer, ikke én sammenhængende sæson.
Bedste vejrPænt vejrHårdeste vejr
Det sker i Boulder i juli
Tilbagevendende sæsonbegivenheder, naturfænomener, lukninger og helligdage — kurateret og med kilder.
- Natur
Foothills wildflowers
20. apr. – 10. jul. · normaltVilde blomster & blomstringColour works uphill from the Mesa Trail meadows in late April to the high meadows above town by early July. The Chautauqua trailhead lot fills by eight on a weekend; the shuttle exists for a reason. Kilde ↗
- Festival
Colorado Music Festival
25. jun. – 5. aug. · normaltBook tidligtSix weeks of orchestral concerts in the wooden Chautauqua Auditorium, doors and windows open onto the Flatirons. Bring a layer — the building has no air conditioning and no heating, and the evenings turn cold fast. Kilde ↗
- Risiko
Afternoon thunderstorms
1. jul. – 31. aug. · normaltStormsæsonStorms build over the Divide most afternoons and reach the foothills between one and four, with lightning that kills hikers on exposed ridges every few years. The local rule is to be off the high ground by noon. Kilde ↗
Lige i nærheden sker der noget
Inden for 300 km fra Boulder — en dagstur eller et kort hop — hvor der sker noget denne måned. Aldrig en del af komfortscoren.
Hvor ligger Boulder?
Boulder i juli — ofte stillede spørgsmål
- Er juli et godt tidspunkt at besøge Boulder?
- Boulder i juli: hedt, lidt regn — et fremragende tidspunkt at tage afsted. Måneden ligger nr. 5 ud af 12 for Boulder på SeasonMaps komfortscore (84/100).
- Hvordan er vejret i Boulder i juli?
- I juli har Boulder i gennemsnit en dagtemperatur på 32.3 °C og en nattemperatur på 14.6 °C, med omkring 37.6 mm regn fordelt på cirka 8.7 regnvejrsdage.
- Hvordan er luftkvaliteten i Boulder i juli?
- Boulder har et gennemsnitligt amerikansk luftkvalitetsindeks på omkring 51 i juli.
Inden for 300 km: Denver's Red Rocks concert season, omkring 1. apr. – 5. nov. og Rocky Mountain National Park's Trail Ridge Road season, omkring 25. maj – 15. okt..