Best time to visit Aspen
Re-score for me — drag the dial — every chart on the page recolours live for your heat limit 27°C
Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme heat overrides them, so a clear sky or low rain can't lift the period.
How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.
Compare with another destination
Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.
Tours in Aspen
6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Aspen).
- 1
Photographer and Professional Photoshoot in Aspen - 2
Private Car Service from Aspen or Snowmass to Denver Int'l Airport (DEN) - 3
Aspen Self-Guided Tour: Tales of Wealth, Wildness and Rebellion - 4
Aspen hotel or address to Denver Airport (DEN) - Departure Private Transfer - 5
Aspen's DarkSide Ghost Tour - 6
Aspen's Past to Present Historic Tour
Last refreshed 2026-06-18.
Similar climatesPark City95% · Bansko85% · Zermatt83%
Other destinations with the most-alike year-round climate to Aspen (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Aspen's. Based on the 2020-2024 climatology, not this year's actual weather.
Month-by-month
| Month | Temp °C | Feels °C | Rain days | Rain h | Rain h/day | Humidity | Wind km/h | Sun h | UV | Interest | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | -13–0 | -4 | 12 | 171 | 14.3 | 55% | 9 | 166 | 2 | Quiet | 7 |
| Feb | -13–1 | -3 | 12 | 185 | 15.4 | 49% | 10 | 178 | 4 | Quiet | 7 |
| Mar | -9–4 | 1 | 15 | 195 | 13.0 | 46% | 10 | 221 | 6 | Quiet | 7 |
| Apr | -6–9 | 5 | 12 | 138 | 11.5 | 40% | 11 | 257 | 8 | Quiet | 8 |
| May | -2–14 | 11 | 10 | 109 | 10.9 | 40% | 11 | 291 | 9 | Quiet | 6 |
| Jun | 4–23 | 20 | 9 | 70 | 7.8 | 31% | 12 | 302 | 10 | Quiet | 3 |
| Jul | 8–27 | 24 | 8 | 58 | 7.3 | 28% | 12 | 309 | 10 | Quiet | 2 |
| Aug | 8–26 | 24 | 8 | 57 | 7.1 | 30% | 11 | 291 | 9 | Peak | 2 |
| Sep | 4–22 | 19 | 6 | 56 | 9.3 | 30% | 11 | 257 | 7 | Busy | 3 |
| Oct | -3–14 | 11 | 7 | 81 | 11.6 | 38% | 11 | 229 | 5 | Busy | 7 |
| Nov | -11–5 | 2 | 10 | 128 | 12.8 | 49% | 9 | 185 | 3 | Peak | 8 |
| Dec | -13–2 | -2 | 11 | 179 | 16.3 | 53% | 9 | 158 | 2 | Peak | 7 |
UV Index in Aspen by Month
UV index in Aspen peaks at 10 (very high) in June, dropping to 2 (low) in December. April, May, June, July, August reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.
Best months in detail
November
8/10-11–5°C (feels 2°C) · 10 rain days (128h) · 185 sun hours · 49% humidity · Peak crowd · UV 3 (moderate)
April
8/10-6–9°C (feels 5°C) · 12 rain days (138h) · 257 sun hours · 40% humidity · Quiet crowd · UV 8 (very high) · sunniest 1 in 10 days reach 10 (very high)
January
7/10-13–0°C (feels -4°C) · 12 rain days (171h) · 166 sun hours · 55% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)
Every month
Show the other 9 months in detail
February
7/10-13–1°C (feels -3°C) · 12 rain days (185h) · 178 sun hours · 49% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)
March
7/10-9–4°C (feels 1°C) · 15 rain days (195h) · 221 sun hours · 46% humidity · Quiet crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (very high)
May
6/10-2–14°C (feels 11°C) · 10 rain days (109h) · 291 sun hours · 40% humidity · Quiet crowd · UV 9 (very high) · sunniest 1 in 10 days reach 11 (extreme)
June
3/104–23°C (feels 20°C) · 9 rain days (70h) · 302 sun hours · 31% humidity · Quiet crowd · UV 10 (very high) · sunniest 1 in 10 days reach 13 (extreme)
July
2/108–27°C (feels 24°C) · 8 rain days (58h) · 309 sun hours · 28% humidity · Quiet crowd · UV 10 (very high) · sunniest 1 in 10 days reach 13 (extreme)
August
2/108–26°C (feels 24°C) · 8 rain days (57h) · 291 sun hours · 30% humidity · Peak crowd · UV 9 (very high) · sunniest 1 in 10 days reach 11 (extreme)
September
3/104–22°C (feels 19°C) · 6 rain days (56h) · 257 sun hours · 30% humidity · Busy crowd · UV 7 (high) · sunniest 1 in 10 days reach 9 (very high)
October
7/10-3–14°C (feels 11°C) · 7 rain days (81h) · 229 sun hours · 38% humidity · Busy crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
December
7/10-13–2°C (feels -2°C) · 11 rain days (179h) · 158 sun hours · 53% humidity · Peak crowd · UV 2 (low)
Frequently asked questions about visiting Aspen
When is the best time to visit Aspen?
November is the highest-scoring month (8/10 on the Holiday Climate Index). Typical conditions: -11–5°C (10 rainy days). The top three months by score are November, April, January.
What is the worst time to visit Aspen?
August is the lowest-scoring month (2/10, capped by extreme heat). Typical conditions: 8–26°C (8 rainy days).
Is Aspen too hot in summer?
4 months (June, July, August, September) trip the heat deal-breaker in our scoring: apparent temperature crosses the comfort cap, so even with clear skies and low rain the score is held down. Plan around it if heat tolerance is low.
When are crowds lowest in Aspen?
Search-interest seasonality (Google Trends 2021-2025) is lowest in April and peaks in November. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.
Which months in Aspen have good weather but fewer tourists?
April (climate 8/10, crowd index 0) and January (climate 7/10, crowd index 25) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Aspen by month?
UV peaks at 10 (very high) in June and is lowest in December at 2 (low). Monthly peak values: Jan 2, Feb 4, Mar 6, Apr 8, May 9, Jun 10, Jul 10, Aug 9, Sep 7, Oct 5, Nov 3, Dec 2. April, May, June, July, August reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.
What is the UV index in Aspen in June?
June is the peak UV month in Aspen, with a daily-peak UV index of 10 (very high). At this level, sunburn can occur in under 20 minutes on unprotected fair skin. Apply SPF 50+, wear protective clothing and a hat, and avoid direct midday sun (11:00–17:00).
How high can UV get in Aspen on the sunniest days?
Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. June is the worst case: typical days average UV 10 (very high), but the top 10% of days reach UV 13 (extreme) — and even higher. Months where the sunniest days routinely exceed the typical reading: January, February, March, April, May, June, July, August, September, October. Plan sun protection for the worst case, not the average.