Vienna weather in August
In August, Vienna sees average daytime highs of 85°F and overnight lows near 68°F, with 3.6 in of rain across 10.8 wet days and about 13.5 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.
Highs ease over the month, from about 87°F in the first days to 84°F by the end. The sky is clear or mostly clear about 28% of the time in August, and the air most often feels muggy.
Daylight stretches from about 14 h 06 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Vienna's 4th-clearest and 12th-windiest month. For the whole year in context, see Vienna's year-round climate.
- Daytime high
- 85°
- 2nd warmest
- Overnight low
- 68°
- 11th coldest
- Rainfall
- 3.6 in
- 10.8 wet days
- Daylight
- 13 h 30 min
- 5:27 AM – 6:59 PM
- Cloud cover
- 58%
- 4th clearest
- Wind
- 5 mph
- 12th windiest
- Solar energy
- 5.33 kWh/m²
- Travel score
- 5.0
- out of 10
Vienna is town in Fairfax County, Virginia, United States.
- Density
- 1,446/km²
- people per km²
- Founded
- 1754
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Highs ease over the month, from about 87°F in the first days to 84°F by the end.
A typical August day in Vienna reaches about 85°F in the afternoon and slips back to 68°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 78°F and 93°F. Set against its neighbours, August runs about 2°F cooler than July and about 7°F warmer than September.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 87 | 87 | 87 | 87 | 87 | 87 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 84 | 84 | 84 | 84 | 84 | 83 |
| Avg low (°F) | 70 | 70 | 70 | 70 | 70 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 66 | 66 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 87 | 70 |
| 2 | 87 | 70 |
| 3 | 87 | 70 |
| 4 | 87 | 70 |
| 5 | 87 | 70 |
| 6 | 87 | 69 |
| 7 | 86 | 69 |
| 8 | 86 | 69 |
| 9 | 86 | 69 |
| 10 | 86 | 69 |
| 11 | 86 | 69 |
| 12 | 86 | 69 |
| 13 | 86 | 69 |
| 14 | 86 | 69 |
| 15 | 86 | 69 |
| 16 | 85 | 68 |
| 17 | 85 | 68 |
| 18 | 85 | 68 |
| 19 | 85 | 68 |
| 20 | 85 | 68 |
| 21 | 85 | 68 |
| 22 | 85 | 68 |
| 23 | 85 | 67 |
| 24 | 85 | 67 |
| 25 | 85 | 67 |
| 26 | 84 | 67 |
| 27 | 84 | 67 |
| 28 | 84 | 67 |
| 29 | 84 | 67 |
| 30 | 84 | 66 |
| 31 | 83 | 66 |
How August really feels in Vienna
Once humidity and wind are folded in, August averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Vienna weather by month
How August compares with the rest of the year at a glance. August is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 42° / 28° | 3.1 | 8.4 | 3 | 9.6 | 0.3 |
| Feb | 46° / 29° | 2.8 | 8.3 | 2.8 | 10.5 | 1.1 |
| Mar | 54° / 36° | 3.9 | 10.2 | 1.9 | 11.7 | 3.3 |
| Apr | 65° / 47° | 3.4 | 10.1 | 0.1 | 13 | 5.8 |
| May | 74° / 56° | 3.9 | 11.4 | 0 | 14.1 | 6.5 |
| Jun | 83° / 65° | 3.6 | 11.2 | 0 | 14.7 | 5.5 |
| Jul | 88° / 70° | 4.1 | 11.7 | 0 | 14.4 | 4.3 |
| Aug | 85° / 68° | 3.6 | 10.8 | 0 | 13.5 | 5.0 |
| Sep | 78° / 61° | 4.5 | 9.3 | 0 | 12.3 | 6.8 |
| Oct | 67° / 49° | 3.5 | 7.8 | 0 | 11 | 6.5 |
| Nov | 56° / 39° | 3.0 | 7.5 | 0.2 | 9.9 | 3.9 |
| Dec | 46° / 32° | 3.5 | 9 | 1.8 | 9.3 | 1.4 |
Cloud cover in August
The sky is clear or mostly clear about 28% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 24% of August, with mostly cloudy or overcast conditions the remaining 48%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 48 | 48 | 49 | 49 | 49 | 50 | 50 | 50 | 50 | 50 | 51 | 51 | 52 | 52 | 52 | 53 | 53 | 54 | 54 | 54 | 54 | 54 | 53 | 53 | 53 | 53 | 52 | 52 | 52 | 52 | 51 |
| Cloudier (%) | 52 | 52 | 51 | 51 | 51 | 50 | 50 | 50 | 50 | 50 | 49 | 49 | 48 | 48 | 48 | 47 | 47 | 46 | 46 | 46 | 46 | 46 | 47 | 47 | 47 | 47 | 48 | 48 | 48 | 48 | 49 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 48 | 52 |
| 2 | 48 | 52 |
| 3 | 49 | 51 |
| 4 | 49 | 51 |
| 5 | 49 | 51 |
| 6 | 50 | 50 |
| 7 | 50 | 50 |
| 8 | 50 | 50 |
| 9 | 50 | 50 |
| 10 | 50 | 50 |
| 11 | 51 | 49 |
| 12 | 51 | 49 |
| 13 | 52 | 48 |
| 14 | 52 | 48 |
| 15 | 52 | 48 |
| 16 | 53 | 47 |
| 17 | 53 | 47 |
| 18 | 54 | 46 |
| 19 | 54 | 46 |
| 20 | 54 | 46 |
| 21 | 54 | 46 |
| 22 | 54 | 46 |
| 23 | 53 | 47 |
| 24 | 53 | 47 |
| 25 | 53 | 47 |
| 26 | 53 | 47 |
| 27 | 52 | 48 |
| 28 | 52 | 48 |
| 29 | 52 | 48 |
| 30 | 52 | 48 |
| 31 | 51 | 49 |
Chance of precipitation in August
Vienna gets around 3.6 in of rain over 10.8 wet days in August. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 35% and peaks near 38% on the wettest days. The odds ease toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 38 | 38 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 36 | 36 | 35 | 35 | 34 | 34 | 33 | 33 | 32 | 32 | 31 | 31 | 31 | 31 | 31 | 31 |
| Rain chance (%) | |
|---|---|
| 1 | 38 |
| 2 | 38 |
| 3 | 37 |
| 4 | 37 |
| 5 | 37 |
| 6 | 37 |
| 7 | 37 |
| 8 | 37 |
| 9 | 37 |
| 10 | 37 |
| 11 | 37 |
| 12 | 37 |
| 13 | 37 |
| 14 | 37 |
| 15 | 37 |
| 16 | 36 |
| 17 | 36 |
| 18 | 35 |
| 19 | 35 |
| 20 | 34 |
| 21 | 34 |
| 22 | 33 |
| 23 | 33 |
| 24 | 32 |
| 25 | 32 |
| 26 | 31 |
| 27 | 31 |
| 28 | 31 |
| 29 | 31 |
| 30 | 31 |
| 31 | 31 |
Humidity in August
Most of August feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the muggy band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 50% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 13 | 14 | 15 | 15 | 16 |
| Comfortable (%) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 15 | 16 | 17 | 17 | 18 | 18 | 19 | 19 |
| Humid (%) | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 24 | 24 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 25 | 25 |
| Muggy (%) | 36 | 35 | 35 | 34 | 34 | 34 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 32 | 32 | 31 | 30 | 29 | 28 | 28 | 27 | 26 |
| Oppressive (%) | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 18 | 17 | 17 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 8 | 13 | 23 | 36 | 21 |
| 2 | 8 | 13 | 23 | 35 | 21 |
| 3 | 9 | 13 | 23 | 35 | 21 |
| 4 | 9 | 13 | 22 | 34 | 21 |
| 5 | 9 | 13 | 22 | 34 | 21 |
| 6 | 10 | 13 | 22 | 34 | 21 |
| 7 | 10 | 13 | 22 | 33 | 21 |
| 8 | 10 | 13 | 22 | 33 | 21 |
| 9 | 10 | 13 | 22 | 33 | 21 |
| 10 | 11 | 13 | 22 | 33 | 21 |
| 11 | 11 | 13 | 23 | 33 | 21 |
| 12 | 11 | 13 | 23 | 33 | 20 |
| 13 | 11 | 13 | 23 | 33 | 20 |
| 14 | 11 | 12 | 24 | 33 | 20 |
| 15 | 11 | 12 | 24 | 33 | 19 |
| 16 | 11 | 12 | 25 | 33 | 19 |
| 17 | 11 | 12 | 25 | 33 | 18 |
| 18 | 11 | 13 | 26 | 33 | 17 |
| 19 | 11 | 13 | 27 | 33 | 17 |
| 20 | 11 | 13 | 27 | 33 | 16 |
| 21 | 11 | 13 | 27 | 33 | 15 |
| 22 | 11 | 14 | 28 | 33 | 15 |
| 23 | 11 | 14 | 28 | 32 | 14 |
| 24 | 11 | 15 | 28 | 32 | 14 |
| 25 | 12 | 16 | 27 | 31 | 14 |
| 26 | 12 | 17 | 27 | 30 | 14 |
| 27 | 13 | 17 | 27 | 29 | 14 |
| 28 | 14 | 18 | 26 | 28 | 14 |
| 29 | 15 | 18 | 26 | 28 | 14 |
| 30 | 15 | 19 | 25 | 27 | 13 |
| 31 | 16 | 19 | 25 | 26 | 13 |
Wind in August
Winds average 5 mph in August, the calmest month.
Across August, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 5 | calm |
| 6 | 5 | calm |
| 7 | 5 | calm |
| 8 | 5 | calm |
| 9 | 5 | calm |
| 10 | 5 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | calm |
| 20 | 5 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
| 31 | 5 | calm |
Sunrise & sunset in August
Daylight runs from about 14 h 06 min at the start of August to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 72 minutes over August. Sunrise moves from 5:13 AM to 5:41 AM, and sunset from 7:17 PM to 6:37 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 14.1 | 14.0 | 14.0 | 14.0 | 13.9 | 13.9 | 13.9 | 13.8 | 13.8 | 13.8 | 13.7 | 13.7 | 13.6 | 13.6 | 13.6 | 13.5 | 13.5 | 13.5 | 13.4 | 13.4 | 13.3 | 13.3 | 13.3 | 13.2 | 13.2 | 13.1 | 13.1 | 13.1 | 13.0 | 13.0 | 12.9 |
| Sunrise (AM) | 5:13 | 5:14 | 5:15 | 5:16 | 5:17 | 5:18 | 5:19 | 5:20 | 5:21 | 5:22 | 5:23 | 5:24 | 5:24 | 5:25 | 5:26 | 5:27 | 5:28 | 5:29 | 5:30 | 5:31 | 5:32 | 5:33 | 5:34 | 5:35 | 5:36 | 5:37 | 5:37 | 5:38 | 5:39 | 5:40 | 5:41 |
| Sunset (PM) | 7:17 | 7:16 | 7:15 | 7:14 | 7:13 | 7:11 | 7:10 | 7:09 | 7:08 | 7:07 | 7:06 | 7:04 | 7:03 | 7:02 | 7:00 | 6:59 | 6:58 | 6:56 | 6:55 | 6:54 | 6:52 | 6:51 | 6:49 | 6:48 | 6:46 | 6:45 | 6:43 | 6:42 | 6:40 | 6:39 | 6:37 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.1 | 5:13 | 7:17 |
| 2 | 14.0 | 5:14 | 7:16 |
| 3 | 14.0 | 5:15 | 7:15 |
| 4 | 14.0 | 5:16 | 7:14 |
| 5 | 13.9 | 5:17 | 7:13 |
| 6 | 13.9 | 5:18 | 7:11 |
| 7 | 13.9 | 5:19 | 7:10 |
| 8 | 13.8 | 5:20 | 7:09 |
| 9 | 13.8 | 5:21 | 7:08 |
| 10 | 13.8 | 5:22 | 7:07 |
| 11 | 13.7 | 5:23 | 7:06 |
| 12 | 13.7 | 5:24 | 7:04 |
| 13 | 13.6 | 5:24 | 7:03 |
| 14 | 13.6 | 5:25 | 7:02 |
| 15 | 13.6 | 5:26 | 7:00 |
| 16 | 13.5 | 5:27 | 6:59 |
| 17 | 13.5 | 5:28 | 6:58 |
| 18 | 13.5 | 5:29 | 6:56 |
| 19 | 13.4 | 5:30 | 6:55 |
| 20 | 13.4 | 5:31 | 6:54 |
| 21 | 13.3 | 5:32 | 6:52 |
| 22 | 13.3 | 5:33 | 6:51 |
| 23 | 13.3 | 5:34 | 6:49 |
| 24 | 13.2 | 5:35 | 6:48 |
| 25 | 13.2 | 5:36 | 6:46 |
| 26 | 13.1 | 5:37 | 6:45 |
| 27 | 13.1 | 5:37 | 6:43 |
| 28 | 13.1 | 5:38 | 6:42 |
| 29 | 13.0 | 5:39 | 6:40 |
| 30 | 13.0 | 5:40 | 6:39 |
| 31 | 12.9 | 5:41 | 6:37 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 5.33 kWh/m².
For context, solar energy here swings from a low near 1.95 kWh/m² to a high of 6.14 kWh/m² in June across the year — August's 5.33 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.6 | Bright |
| 2 | 5.6 | Bright |
| 3 | 5.6 | Bright |
| 4 | 5.6 | Bright |
| 5 | 5.6 | Bright |
| 6 | 5.5 | Bright |
| 7 | 5.5 | Bright |
| 8 | 5.5 | Bright |
| 9 | 5.5 | Bright |
| 10 | 5.5 | Bright |
| 11 | 5.4 | Bright |
| 12 | 5.4 | Bright |
| 13 | 5.4 | Bright |
| 14 | 5.4 | Bright |
| 15 | 5.3 | Bright |
| 16 | 5.3 | Bright |
| 17 | 5.3 | Bright |
| 18 | 5.3 | Bright |
| 19 | 5.3 | Bright |
| 20 | 5.2 | Bright |
| 21 | 5.2 | Bright |
| 22 | 5.2 | Bright |
| 23 | 5.1 | Bright |
| 24 | 5.1 | Bright |
| 25 | 5.1 | Bright |
| 26 | 5.0 | Bright |
| 27 | 5.0 | Bright |
| 28 | 5.0 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
| 31 | 4.9 | Bright |
Hazard calendar for Vienna
In August, Vienna sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Vienna sits in the Atlantic hurricane belt; the season peaks August–October.
Is August a good time to visit Vienna?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a reasonable time to visit Vienna for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Vienna in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Vienna sees daytime highs around 85°F and nights near 68°F. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.
UV index in Vienna in August
Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Vienna peaks around July 11 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 7 | 6 | 4 | 3 | 2 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | High | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 3 | Moderate |
| Mar | 5 | High |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 7 | High |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Vienna in August
Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.
Air quality in Vienna is worst in July — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 12 | 13 | 13 | 15 | 16 | 17 | 15 | 12 | 9 | 9 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 12 | Moderate |
| Mar | 13 | Moderate |
| Apr | 13 | Moderate |
| May | 15 | Moderate |
| Jun | 16 | Moderate |
| Jul | 17 | Moderate |
| Aug | 15 | Moderate |
| Sep | 12 | Moderate |
| Oct | 9 | Good |
| Nov | 9 | Good |
| Dec | 10 | Good |
Where is Vienna?
Vienna sits at 38.9°N, 77.3°W, 358 ft above sea level, in United States. The nearest listed city is Tysons, 2.5 mi away.
Topography around Vienna
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Vienna.
Within 2 miles, the terrain around Vienna has only modest variations in elevation — a maximum elevation change of 269 ft around an average of 390 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 564 ft; within 50 miles, large variations in elevation — a maximum elevation change of 3,071 ft.
The land around Vienna is covered by trees (81%) within 2 miles, trees (78%) within 10 miles, and trees (63%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Vienna (38.9012°, -77.2653°, elevation 358 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).