Denver in Summer — Weather & What to Expect
Summer in Denver (June, July, August) averages daytime highs of 30.5°C and lows of 14.7°C, with around 111.7mm of rain across the season (19 rainy days in total). It includes some of the best months of the year to visit (June, July, August).
In the northern hemisphere, summer in Denver covers June, July, August.
Summer in Denver month by month
| Month | High | Low | Rain | Rainy days | Rating |
|---|---|---|---|---|---|
| June | 28.2°C | 12.2°C | 54.6mm | 8 | 10/10 |
| July | 32.0°C | 16.3°C | 28.7mm | 6 | 10/10 |
| August | 31.4°C | 15.6°C | 28.4mm | 5 | 10/10 |
What to pack for Denver in summer
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Light waterproof layer
- Lightweight, breathable clothing
- High SPF sunscreen
- Sunglasses
- Sun hat
Frequently Asked Questions
Is summer a good time to visit Denver?
Summer in Denver rates around 10/10 — excellent time to visit. Average highs are 30.5°C with 111.7mm of rain across the season.
How hot is Denver in summer?
Daytime highs average 30.5°C (86.9°F) across June, July, August, with nights around 14.7°C.
What months are summer in Denver?
Denver is in the northern hemisphere, so summer covers June, July, August.
See also: best time to visit Denver · Denver annual climate · Denver in spring · Denver in autumn · Denver in winter
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Once you know what summer in Denver looks like, find out exactly what to pack for Denver at 247PackingList. For currency, language and country facts, see the United States guide at 247CountryInfo.
Summer in Denver — what to pack
Hot-weather travel clothing
Sun protection, lightweight layers and a reusable water bottle are essential here.
Check Price →Check clothing sizes in United States at 247Sizing before you shop.
More summer travel essentials
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.