Weather on August 29 at Great Sand Dunes

Great Sand Dunes National Park and Preserve

CORocky Mountain8,200 ft elevation
Avg High80°F
Avg Low43°F
Warmest202169°F
Coldest198754°F

Based on 55 years of data from Alamosa, CO

Elevation Note: Great Sand Dunes sits at 8,200 ft. Expect temperatures 29°F cooler than the data shown below, which comes from Alamosa, CO at a lower elevation.

Planning Your Visit

August 29th in Great Sand Dunes National Park (via Alamosa, CO) typically brings warm summer weather, with average highs around 80°F and lows near 43°F — a 37°F daily swing. Over 55 years of records, the warmest August 29th was in 2021 (69°F average), while the coldest was 1987 (54°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 31% of August 29th dates historically, with the wettest August 29th recording 0.69" of rain. Temperatures on this date have remained relatively stable over the past several decades.

Temperatures on this date have remained relatively stable over the past several decades.

Planning for August 29th in Great Sand Dunes? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202580°F44°F0"0"
202480°F46°F0"0"
202383°F45°F0"0"
202279°F38°F0.18"0"
202189°F49°F0"0"
202080°F52°F0.69"0"
201983°F40°F0"0"
201883°F39°F0"0"
201784°F46°F0.48"0"
201675°F46°F0.38"0"
201584°F46°F0"0"
201470°F39°F0.05"0"
201383°F45°F0"0"
201286°F45°F0"--
201188°F44°F0"--
201080°F43°F0"0"
200981°F42°F0"0"
200883°F46°F0"0"
200778°F44°F0"0"
200677°F36°F0"0"
200581°F39°F0"0"
200480°F38°F0"0"
200371°F47°F0.03"0"
200281°F42°F0.05"0"
200177°F44°F0.18"0"
200081°F48°F0"0"
199978°F54°F0.1"0"
199884°F47°F0"0"
199784°F48°F0"0"
199680°F41°F0"0"
199581°F46°F0"0"
199477°F45°F0.03"0"
199371°F51°F0.43"0"
199275°F38°F0"0"
199184°F41°F0"0"
199087°F43°F0"0"
198982°F39°F0"0"
198877°F41°F0"0"
198775°F34°F0"0"
198675°F45°F0.05"0"
198585°F40°F0"0"
198484°F45°F0"0"
198377°F54°F0.2"0"
198279°F45°F0"0"
198178°F41°F0.13"0"
198078°F38°F0"0"
197982°F35°F0"0"
197874°F41°F0.08"0"
197780°F36°F0"0"
197678°F38°F0"0"
197579°F35°F0"0"
197478°F41°F0"0"
197376°F42°F0"0"
197273°F48°F0.1"0"
197176°F48°F0.15"0"

August 29 at Nearby Parks

Holiday Weather at Great Sand Dunes

Official NPS WebsiteVisit nps.gov/grsa for park information, alerts, and reservations

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