Velletri weather in October
In October, Velletri sees average daytime highs of 21°C and overnight lows near 12°C, with 125 mm of rain across 11.3 wet days and about 10.9 hours of daylight. It is the 6th-warmest and 2nd-wettest month of the year here.
Highs ease over the month, from about 22°C in the first days to 19°C by the end. The sky is clear or mostly clear about 43% of the time in October, and the air most often feels dry.
Daylight stretches from about 11 h 36 min at the start of October to 10 h 12 min by month's end. Set against the rest of the year, October is Velletri's 7th-clearest and 8th-windiest month. For the whole year in context, see Velletri's year-round climate.
- Daytime high
- 21°
- 6th warmest
- Overnight low
- 12°
- 7th coldest
- Rainfall
- 125 mm
- 11.3 wet days
- Daylight
- 10 h 54 min
- 6:28 AM – 5:20 PM
- Cloud cover
- 50%
- 7th clearest
- Wind
- 7 km/h
- 8th windiest
- Solar energy
- 3.13 kWh/m²
- Travel score
- 6.4
- out of 10
Velletri is chief town of the homonym municipality.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in October
Highs ease over the month, from about 22°C in the first days to 19°C by the end.
A typical October day in Velletri reaches about 21°C in the afternoon and slips back to 12°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°C. Set against its neighbours, October runs about 4°C cooler than September and about 5°C warmer than November.
| 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 (°C) | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 |
| Avg low (°C) | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 23 | 14 |
| 2 | 23 | 14 |
| 3 | 22 | 14 |
| 4 | 22 | 14 |
| 5 | 22 | 14 |
| 6 | 22 | 13 |
| 7 | 22 | 13 |
| 8 | 22 | 13 |
| 9 | 22 | 13 |
| 10 | 22 | 13 |
| 11 | 21 | 13 |
| 12 | 21 | 13 |
| 13 | 21 | 13 |
| 14 | 21 | 12 |
| 15 | 21 | 12 |
| 16 | 21 | 12 |
| 17 | 21 | 12 |
| 18 | 21 | 12 |
| 19 | 20 | 12 |
| 20 | 20 | 12 |
| 21 | 20 | 12 |
| 22 | 20 | 12 |
| 23 | 20 | 11 |
| 24 | 20 | 11 |
| 25 | 20 | 11 |
| 26 | 19 | 11 |
| 27 | 19 | 11 |
| 28 | 19 | 11 |
| 29 | 19 | 11 |
| 30 | 19 | 11 |
| 31 | 19 | 11 |
Velletri weather by month
How October compares with the rest of the year at a glance. October is the 6th-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 11° / 3° | 78 | 9.6 | 0.3 | 9.3 | 2.9 |
| Feb | 12° / 4° | 82 | 9.8 | 0.6 | 10.3 | 3.2 |
| Mar | 15° / 6° | 88 | 10.3 | 0.1 | 11.7 | 4.5 |
| Apr | 18° / 9° | 94 | 12.7 | 0.1 | 13.1 | 5.4 |
| May | 22° / 13° | 75 | 10.1 | 0 | 14.3 | 6.8 |
| Jun | 26° / 16° | 46 | 7.7 | 0 | 15 | 7.3 |
| Jul | 29° / 19° | 29 | 5.2 | 0 | 14.7 | 6.5 |
| Aug | 30° / 19° | 30 | 5.8 | 0 | 13.7 | 6.2 |
| Sep | 25° / 16° | 93 | 10.3 | 0 | 12.3 | 7.0 |
| Oct | 21° / 12° | 125 | 11.3 | 0 | 10.9 | 6.4 |
| Nov | 16° / 8° | 148 | 12.8 | 0 | 9.6 | 4.6 |
| Dec | 12° / 5° | 113 | 10.8 | 0.1 | 9 | 3.2 |
Cloud cover in October
The sky is clear or mostly clear about 43% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 17% of October, with mostly cloudy or overcast conditions the remaining 40%.
| 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 (%) | 66 | 65 | 65 | 64 | 63 | 63 | 62 | 62 | 61 | 61 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 59 | 59 | 58 | 58 | 57 | 57 | 56 | 56 |
| Cloudier (%) | 34 | 35 | 35 | 36 | 37 | 37 | 38 | 38 | 39 | 39 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 41 | 41 | 42 | 42 | 43 | 43 | 44 | 44 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 66 | 34 |
| 2 | 65 | 35 |
| 3 | 65 | 35 |
| 4 | 64 | 36 |
| 5 | 63 | 37 |
| 6 | 63 | 37 |
| 7 | 62 | 38 |
| 8 | 62 | 38 |
| 9 | 61 | 39 |
| 10 | 61 | 39 |
| 11 | 60 | 40 |
| 12 | 60 | 40 |
| 13 | 60 | 40 |
| 14 | 60 | 40 |
| 15 | 60 | 40 |
| 16 | 60 | 40 |
| 17 | 60 | 40 |
| 18 | 60 | 40 |
| 19 | 60 | 40 |
| 20 | 60 | 40 |
| 21 | 60 | 40 |
| 22 | 60 | 40 |
| 23 | 60 | 40 |
| 24 | 59 | 41 |
| 25 | 59 | 41 |
| 26 | 58 | 42 |
| 27 | 58 | 42 |
| 28 | 57 | 43 |
| 29 | 57 | 43 |
| 30 | 56 | 44 |
| 31 | 56 | 44 |
Chance of precipitation in October
Velletri gets around 125 mm of rain over 11.3 wet days in October. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 37% and peaks near 40% on the wettest days.
| 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 (%) | 36 | 36 | 37 | 37 | 37 | 37 | 38 | 38 | 38 | 38 | 38 | 37 | 37 | 37 | 36 | 36 | 35 | 35 | 35 | 34 | 34 | 34 | 35 | 35 | 35 | 36 | 37 | 38 | 38 | 39 | 40 |
| Rain chance (%) | |
|---|---|
| 1 | 36 |
| 2 | 36 |
| 3 | 37 |
| 4 | 37 |
| 5 | 37 |
| 6 | 37 |
| 7 | 38 |
| 8 | 38 |
| 9 | 38 |
| 10 | 38 |
| 11 | 38 |
| 12 | 37 |
| 13 | 37 |
| 14 | 37 |
| 15 | 36 |
| 16 | 36 |
| 17 | 35 |
| 18 | 35 |
| 19 | 35 |
| 20 | 34 |
| 21 | 34 |
| 22 | 34 |
| 23 | 35 |
| 24 | 35 |
| 25 | 35 |
| 26 | 36 |
| 27 | 37 |
| 28 | 38 |
| 29 | 38 |
| 30 | 39 |
| 31 | 40 |
Humidity in October
Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the dry band about 55% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 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 (%) | 32 | 34 | 35 | 36 | 38 | 39 | 41 | 43 | 45 | 47 | 49 | 52 | 54 | 56 | 57 | 59 | 59 | 61 | 61 | 63 | 63 | 64 | 64 | 66 | 66 | 67 | 68 | 68 | 69 | 71 | 72 |
| Comfortable (%) | 46 | 46 | 45 | 45 | 44 | 44 | 43 | 42 | 41 | 40 | 39 | 37 | 36 | 35 | 34 | 33 | 33 | 32 | 32 | 31 | 31 | 30 | 30 | 29 | 29 | 28 | 27 | 27 | 26 | 25 | 24 |
| Humid (%) | 20 | 19 | 18 | 18 | 17 | 16 | 15 | 14 | 14 | 13 | 12 | 11 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 |
| Muggy (%) | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 32 | 46 | 20 | 2 |
| 2 | 34 | 46 | 19 | 2 |
| 3 | 35 | 45 | 18 | 1 |
| 4 | 36 | 45 | 18 | 1 |
| 5 | 38 | 44 | 17 | 1 |
| 6 | 39 | 44 | 16 | 1 |
| 7 | 41 | 43 | 15 | 1 |
| 8 | 43 | 42 | 14 | 0 |
| 9 | 45 | 41 | 14 | 0 |
| 10 | 47 | 40 | 13 | 0 |
| 11 | 49 | 39 | 12 | 0 |
| 12 | 52 | 37 | 11 | 0 |
| 13 | 54 | 36 | 10 | 0 |
| 14 | 56 | 35 | 9 | 0 |
| 15 | 57 | 34 | 9 | 0 |
| 16 | 59 | 33 | 8 | 0 |
| 17 | 59 | 33 | 8 | 0 |
| 18 | 61 | 32 | 7 | 0 |
| 19 | 61 | 32 | 7 | 0 |
| 20 | 63 | 31 | 6 | 0 |
| 21 | 63 | 31 | 6 | 0 |
| 22 | 64 | 30 | 6 | 0 |
| 23 | 64 | 30 | 6 | 0 |
| 24 | 66 | 29 | 5 | 0 |
| 25 | 66 | 29 | 5 | 0 |
| 26 | 67 | 28 | 5 | 0 |
| 27 | 68 | 27 | 5 | 0 |
| 28 | 68 | 27 | 5 | 0 |
| 29 | 69 | 26 | 5 | 0 |
| 30 | 71 | 25 | 4 | 0 |
| 31 | 72 | 24 | 4 | 0 |
Wind in October
Winds average 7 km/h in October.
Across October, daily wind ranges from about 7 km/h on the calmest days to 8 km/h 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 (km/h) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 |
| 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 (km/h) | Feels | |
|---|---|---|
| 1 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 8 | calm |
| 29 | 8 | calm |
| 30 | 8 | calm |
| 31 | 8 | calm |
Sunrise & sunset in October
Daylight runs from about 11 h 36 min at the start of October to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 84 minutes over October. Sunrise moves from 6:11 AM to 6:46 AM, and sunset from 5:45 PM to 4:59 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) | 11.6 | 11.5 | 11.5 | 11.4 | 11.4 | 11.3 | 11.3 | 11.2 | 11.2 | 11.1 | 11.1 | 11.0 | 11.0 | 10.9 | 10.9 | 10.9 | 10.8 | 10.8 | 10.7 | 10.7 | 10.6 | 10.6 | 10.5 | 10.5 | 10.5 | 10.4 | 10.4 | 10.3 | 10.3 | 10.2 | 10.2 |
| Sunrise (AM) | 6:11 | 6:12 | 6:13 | 6:14 | 6:16 | 6:17 | 6:18 | 6:19 | 6:20 | 6:21 | 6:22 | 6:24 | 6:25 | 6:26 | 6:27 | 6:28 | 6:29 | 6:31 | 6:32 | 6:33 | 6:34 | 6:35 | 6:37 | 6:38 | 6:39 | 6:40 | 6:41 | 6:43 | 6:44 | 6:45 | 6:46 |
| Sunset (PM) | 5:45 | 5:43 | 5:41 | 5:39 | 5:38 | 5:36 | 5:34 | 5:33 | 5:31 | 5:29 | 5:28 | 5:26 | 5:24 | 5:23 | 5:21 | 5:20 | 5:18 | 5:17 | 5:15 | 5:14 | 5:12 | 5:11 | 5:09 | 5:08 | 5:06 | 5:05 | 5:04 | 5:02 | 5:01 | 5:00 | 4:59 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.6 | 6:11 | 5:45 |
| 2 | 11.5 | 6:12 | 5:43 |
| 3 | 11.5 | 6:13 | 5:41 |
| 4 | 11.4 | 6:14 | 5:39 |
| 5 | 11.4 | 6:16 | 5:38 |
| 6 | 11.3 | 6:17 | 5:36 |
| 7 | 11.3 | 6:18 | 5:34 |
| 8 | 11.2 | 6:19 | 5:33 |
| 9 | 11.2 | 6:20 | 5:31 |
| 10 | 11.1 | 6:21 | 5:29 |
| 11 | 11.1 | 6:22 | 5:28 |
| 12 | 11.0 | 6:24 | 5:26 |
| 13 | 11.0 | 6:25 | 5:24 |
| 14 | 10.9 | 6:26 | 5:23 |
| 15 | 10.9 | 6:27 | 5:21 |
| 16 | 10.9 | 6:28 | 5:20 |
| 17 | 10.8 | 6:29 | 5:18 |
| 18 | 10.8 | 6:31 | 5:17 |
| 19 | 10.7 | 6:32 | 5:15 |
| 20 | 10.7 | 6:33 | 5:14 |
| 21 | 10.6 | 6:34 | 5:12 |
| 22 | 10.6 | 6:35 | 5:11 |
| 23 | 10.5 | 6:37 | 5:09 |
| 24 | 10.5 | 6:38 | 5:08 |
| 25 | 10.5 | 6:39 | 5:06 |
| 26 | 10.4 | 6:40 | 5:05 |
| 27 | 10.4 | 6:41 | 5:04 |
| 28 | 10.3 | 6:43 | 5:02 |
| 29 | 10.3 | 6:44 | 5:01 |
| 30 | 10.2 | 6:45 | 5:00 |
| 31 | 10.2 | 6:46 | 4:59 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 3.13 kWh/m².
For context, solar energy here swings from a low near 1.66 kWh/m² to a high of 7.08 kWh/m² in July across the year — October's 3.13 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) | 3.7 | 3.7 | 3.6 | 3.6 | 3.6 | 3.5 | 3.5 | 3.5 | 3.4 | 3.4 | 3.4 | 3.3 | 3.3 | 3.2 | 3.2 | 3.2 | 3.1 | 3.1 | 3.0 | 3.0 | 3.0 | 2.9 | 2.9 | 2.8 | 2.8 | 2.8 | 2.7 | 2.7 | 2.6 | 2.6 | 2.5 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.7 | Moderate |
| 2 | 3.7 | Moderate |
| 3 | 3.6 | Moderate |
| 4 | 3.6 | Moderate |
| 5 | 3.6 | Moderate |
| 6 | 3.5 | Moderate |
| 7 | 3.5 | Moderate |
| 8 | 3.5 | Moderate |
| 9 | 3.4 | Moderate |
| 10 | 3.4 | Moderate |
| 11 | 3.4 | Moderate |
| 12 | 3.3 | Moderate |
| 13 | 3.3 | Moderate |
| 14 | 3.2 | Moderate |
| 15 | 3.2 | Moderate |
| 16 | 3.2 | Moderate |
| 17 | 3.1 | Moderate |
| 18 | 3.1 | Moderate |
| 19 | 3.0 | Moderate |
| 20 | 3.0 | Moderate |
| 21 | 3.0 | Moderate |
| 22 | 2.9 | Moderate |
| 23 | 2.9 | Moderate |
| 24 | 2.8 | Moderate |
| 25 | 2.8 | Moderate |
| 26 | 2.8 | Moderate |
| 27 | 2.7 | Moderate |
| 28 | 2.7 | Moderate |
| 29 | 2.6 | Moderate |
| 30 | 2.6 | Moderate |
| 31 | 2.5 | Moderate |
Is October a good time to visit Velletri?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is a reasonable time to visit Velletri for sightseeing.
What to pack for Velletri in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Velletri sees daytime highs around 21°C and nights near 12°C. Worth packing: rain gear. About 11 days see rain.
Sea temperature near Velletri in October
The nearest coast averages about 21°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 34 km away) is warmest in August at about 26°C and coldest in February near 14°C.
It's comfortable for a long swim from May 31 to Nov 1 — about 5.1 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 15 | 14 | 14 | 15 | 18 | 22 | 25 | 26 | 24 | 21 | 19 | 16 |
| Comfort | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Warm | Warm | Refreshing | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 15 | Bracing |
| Feb | 14 | Bracing |
| Mar | 14 | Bracing |
| Apr | 15 | Cool |
| May | 18 | Cool |
| Jun | 22 | Refreshing |
| Jul | 25 | Warm |
| Aug | 26 | Warm |
| Sep | 24 | Refreshing |
| Oct | 21 | Refreshing |
| Nov | 19 | Cool |
| Dec | 16 | Cool |
UV index in Velletri in October
Clear-sky midday UV in October peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Velletri peaks around July 15 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 3 | 5 | 4 | 7 | 9 | 10 | 8 | 6 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 4 | Moderate |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Velletri in October
Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.
Air quality in Velletri is worst in April — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 15 | 15 | 17 | 17 | 15 | 14 | 12 | 13 | 11 | 12 | 12 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Moderate | Good | Moderate | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 15 | Moderate |
| Mar | 17 | Moderate |
| Apr | 17 | Moderate |
| May | 15 | Moderate |
| Jun | 14 | Moderate |
| Jul | 12 | Good |
| Aug | 13 | Moderate |
| Sep | 11 | Good |
| Oct | 12 | Moderate |
| Nov | 12 | Good |
| Dec | 13 | Moderate |
Where is Velletri?
Velletri sits at 41.7°N, 12.8°E, 332 m above sea level, in Italy. The nearest listed city is Genzano di Roma, 8.0 km away.
Topography around Velletri
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Velletri.
Within 3 km, the terrain around Velletri has significant variations in elevation — a maximum elevation change of 532 m around an average of 316 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,163 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,441 m.
The land around Velletri is covered by trees (80%) within 3 km, trees (60%) within 16 km, and trees (43%) and water (30%) within 80 km.
Italy travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F / L
- 230 V · 50 Hz
- Prices
- ≈ 69% of US
- price level, 2025
- GDP per capita
- $43,309
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 0.6
- per 100k, 2023
- Road deaths
- 5.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 513
- 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 Velletri (41.6857°, 12.7775°, elevation 332 m), 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).