Aci Castello weather in May
In May, Aci Castello sees average daytime highs of 20°C and overnight lows near 17°C, with 16 mm of rain across 3.4 wet days and about 14 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.
Highs climb over the month, from about 19°C in the first days to 22°C by the end. The sky is clear or mostly clear about 62% of the time in May, and the air most often feels comfortable.
Daylight stretches from about 13 h 30 min at the start of May to 14 h 24 min by month's end. Set against the rest of the year, May is Aci Castello's 5th-clearest and 8th-windiest month. For the whole year in context, see Aci Castello's year-round climate.
- Daytime high
- 20°
- 6th warmest
- Overnight low
- 17°
- 7th coldest
- Rainfall
- 16 mm
- 3.4 wet days
- Daylight
- 14 hours
- 4:55 AM – 6:56 PM
- Cloud cover
- 35%
- 5th clearest
- Wind
- 10 km/h
- 8th windiest
- Solar energy
- 6.67 kWh/m²
- Travel score
- 7.8
- out of 10
Aci Castello is chief town of the homonym municipality.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Highs climb over the month, from about 19°C in the first days to 22°C by the end.
A typical May day in Aci Castello reaches about 20°C in the afternoon and slips back to 17°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 23°C. Set against its neighbours, May runs about 3°C warmer than April and about 4°C cooler than June.
| 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) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 |
| Avg low (°C) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 19 | 16 |
| 2 | 19 | 16 |
| 3 | 19 | 16 |
| 4 | 19 | 16 |
| 5 | 19 | 16 |
| 6 | 19 | 16 |
| 7 | 19 | 16 |
| 8 | 19 | 16 |
| 9 | 20 | 16 |
| 10 | 20 | 17 |
| 11 | 20 | 17 |
| 12 | 20 | 17 |
| 13 | 20 | 17 |
| 14 | 20 | 17 |
| 15 | 20 | 17 |
| 16 | 20 | 17 |
| 17 | 21 | 17 |
| 18 | 21 | 17 |
| 19 | 21 | 18 |
| 20 | 21 | 18 |
| 21 | 21 | 18 |
| 22 | 21 | 18 |
| 23 | 21 | 18 |
| 24 | 21 | 18 |
| 25 | 21 | 18 |
| 26 | 21 | 18 |
| 27 | 22 | 19 |
| 28 | 22 | 19 |
| 29 | 22 | 19 |
| 30 | 22 | 19 |
| 31 | 22 | 19 |
Aci Castello weather by month
How May compares with the rest of the year at a glance. May is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 14° / 11° | 83 | 8.4 | 9.7 | 4.4 |
| Feb | 14° / 11° | 61 | 6.9 | 10.6 | 4.5 |
| Mar | 15° / 12° | 52 | 6.7 | 11.7 | 5.2 |
| Apr | 17° / 14° | 33 | 6.1 | 12.9 | 6.3 |
| May | 20° / 17° | 16 | 3.4 | 14 | 7.8 |
| Jun | 24° / 21° | 12 | 1.9 | 14.5 | 8.9 |
| Jul | 27° / 24° | 4 | 1 | 14.3 | 8.8 |
| Aug | 28° / 25° | 8 | 1.4 | 13.4 | 8.3 |
| Sep | 25° / 22° | 50 | 5.5 | 12.3 | 8.0 |
| Oct | 22° / 19° | 77 | 8.2 | 11 | 7.3 |
| Nov | 19° / 16° | 83 | 8.4 | 10 | 6.4 |
| Dec | 16° / 12° | 77 | 8.8 | 9.5 | 5.1 |
Cloud cover in May
The sky is clear or mostly clear about 62% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 21%. Skies tend to open up as the month goes on.
| 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 (%) | 75 | 76 | 77 | 78 | 78 | 79 | 80 | 80 | 79 | 79 | 79 | 79 | 79 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 79 | 79 | 79 | 79 | 80 | 80 | 81 | 81 |
| Cloudier (%) | 25 | 24 | 23 | 22 | 22 | 21 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 20 | 19 | 19 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 75 | 25 |
| 2 | 76 | 24 |
| 3 | 77 | 23 |
| 4 | 78 | 22 |
| 5 | 78 | 22 |
| 6 | 79 | 21 |
| 7 | 80 | 20 |
| 8 | 80 | 20 |
| 9 | 79 | 21 |
| 10 | 79 | 21 |
| 11 | 79 | 21 |
| 12 | 79 | 21 |
| 13 | 79 | 21 |
| 14 | 78 | 22 |
| 15 | 78 | 22 |
| 16 | 78 | 22 |
| 17 | 78 | 22 |
| 18 | 78 | 22 |
| 19 | 78 | 22 |
| 20 | 78 | 22 |
| 21 | 78 | 22 |
| 22 | 78 | 22 |
| 23 | 78 | 22 |
| 24 | 79 | 21 |
| 25 | 79 | 21 |
| 26 | 79 | 21 |
| 27 | 79 | 21 |
| 28 | 80 | 20 |
| 29 | 80 | 20 |
| 30 | 81 | 19 |
| 31 | 81 | 19 |
Chance of precipitation in May
Aci Castello gets around 16 mm of rain over 3.4 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 11% and peaks near 17% 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 (%) | 17 | 16 | 15 | 14 | 14 | 13 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 |
| Rain chance (%) | |
|---|---|
| 1 | 17 |
| 2 | 16 |
| 3 | 15 |
| 4 | 14 |
| 5 | 14 |
| 6 | 13 |
| 7 | 12 |
| 8 | 12 |
| 9 | 11 |
| 10 | 11 |
| 11 | 10 |
| 12 | 10 |
| 13 | 10 |
| 14 | 10 |
| 15 | 10 |
| 16 | 10 |
| 17 | 10 |
| 18 | 10 |
| 19 | 10 |
| 20 | 10 |
| 21 | 11 |
| 22 | 11 |
| 23 | 11 |
| 24 | 10 |
| 25 | 10 |
| 26 | 10 |
| 27 | 10 |
| 28 | 10 |
| 29 | 9 |
| 30 | 9 |
| 31 | 9 |
Humidity in May
Most of May feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the comfortable band about 50% 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 (%) | 46 | 44 | 42 | 40 | 38 | 36 | 34 | 32 | 31 | 30 | 28 | 27 | 26 | 24 | 23 | 22 | 21 | 19 | 18 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 |
| Comfortable (%) | 50 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 57 | 57 | 58 | 58 | 57 | 58 | 57 | 56 | 55 | 55 | 53 | 51 | 50 | 48 | 46 | 44 | 42 | 40 | 38 | 36 | 34 | 32 | 30 |
| Humid (%) | 4 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 12 | 13 | 14 | 15 | 17 | 18 | 20 | 22 | 24 | 26 | 29 | 31 | 33 | 36 | 39 | 41 | 44 | 46 | 48 | 51 | 53 | 55 | 56 |
| Muggy (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 5 | 7 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 46 | 50 | 4 | 0 |
| 2 | 44 | 52 | 4 | 0 |
| 3 | 42 | 53 | 5 | 0 |
| 4 | 40 | 54 | 6 | 0 |
| 5 | 38 | 55 | 7 | 0 |
| 6 | 36 | 56 | 8 | 0 |
| 7 | 34 | 57 | 9 | 0 |
| 8 | 32 | 58 | 10 | 0 |
| 9 | 31 | 57 | 12 | 0 |
| 10 | 30 | 57 | 13 | 0 |
| 11 | 28 | 58 | 14 | 0 |
| 12 | 27 | 58 | 15 | 0 |
| 13 | 26 | 57 | 17 | 0 |
| 14 | 24 | 58 | 18 | 0 |
| 15 | 23 | 57 | 20 | 0 |
| 16 | 22 | 56 | 22 | 0 |
| 17 | 21 | 55 | 24 | 0 |
| 18 | 19 | 55 | 26 | 0 |
| 19 | 18 | 53 | 29 | 0 |
| 20 | 18 | 51 | 31 | 0 |
| 21 | 17 | 50 | 33 | 0 |
| 22 | 16 | 48 | 36 | 1 |
| 23 | 15 | 46 | 39 | 1 |
| 24 | 14 | 44 | 41 | 1 |
| 25 | 13 | 42 | 44 | 2 |
| 26 | 12 | 40 | 46 | 2 |
| 27 | 11 | 38 | 48 | 3 |
| 28 | 10 | 36 | 51 | 3 |
| 29 | 9 | 34 | 53 | 4 |
| 30 | 8 | 32 | 55 | 5 |
| 31 | 7 | 30 | 56 | 7 |
Wind in May
Winds average 10 km/h in May.
Across May, daily wind ranges from about 9 km/h on the calmest days to 10 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) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| 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 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 10 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 10 | calm |
| 14 | 10 | calm |
| 15 | 10 | calm |
| 16 | 10 | calm |
| 17 | 10 | calm |
| 18 | 10 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
| 31 | 9 | calm |
Sunrise & sunset in May
Daylight runs from about 13 h 30 min at the start of May to 14 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 54 minutes over May. Sunrise moves from 5:11 AM to 4:46 AM, and sunset from 6:43 PM to 7:08 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) | 13.5 | 13.6 | 13.6 | 13.6 | 13.7 | 13.7 | 13.7 | 13.8 | 13.8 | 13.8 | 13.9 | 13.9 | 13.9 | 14.0 | 14.0 | 14.0 | 14.0 | 14.1 | 14.1 | 14.1 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.3 | 14.3 | 14.3 | 14.3 | 14.4 | 14.4 |
| Sunrise (AM) | 5:11 | 5:10 | 5:08 | 5:07 | 5:06 | 5:05 | 5:04 | 5:03 | 5:02 | 5:01 | 5:00 | 4:59 | 4:58 | 4:57 | 4:56 | 4:55 | 4:54 | 4:54 | 4:53 | 4:52 | 4:51 | 4:51 | 4:50 | 4:49 | 4:49 | 4:48 | 4:47 | 4:47 | 4:46 | 4:46 | 4:46 |
| Sunset (PM) | 6:43 | 6:43 | 6:44 | 6:45 | 6:46 | 6:47 | 6:48 | 6:49 | 6:50 | 6:51 | 6:52 | 6:53 | 6:53 | 6:54 | 6:55 | 6:56 | 6:57 | 6:58 | 6:59 | 7:00 | 7:00 | 7:01 | 7:02 | 7:03 | 7:04 | 7:04 | 7:05 | 7:06 | 7:07 | 7:07 | 7:08 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.5 | 5:11 | 6:43 |
| 2 | 13.6 | 5:10 | 6:43 |
| 3 | 13.6 | 5:08 | 6:44 |
| 4 | 13.6 | 5:07 | 6:45 |
| 5 | 13.7 | 5:06 | 6:46 |
| 6 | 13.7 | 5:05 | 6:47 |
| 7 | 13.7 | 5:04 | 6:48 |
| 8 | 13.8 | 5:03 | 6:49 |
| 9 | 13.8 | 5:02 | 6:50 |
| 10 | 13.8 | 5:01 | 6:51 |
| 11 | 13.9 | 5:00 | 6:52 |
| 12 | 13.9 | 4:59 | 6:53 |
| 13 | 13.9 | 4:58 | 6:53 |
| 14 | 14.0 | 4:57 | 6:54 |
| 15 | 14.0 | 4:56 | 6:55 |
| 16 | 14.0 | 4:55 | 6:56 |
| 17 | 14.0 | 4:54 | 6:57 |
| 18 | 14.1 | 4:54 | 6:58 |
| 19 | 14.1 | 4:53 | 6:59 |
| 20 | 14.1 | 4:52 | 7:00 |
| 21 | 14.2 | 4:51 | 7:00 |
| 22 | 14.2 | 4:51 | 7:01 |
| 23 | 14.2 | 4:50 | 7:02 |
| 24 | 14.2 | 4:49 | 7:03 |
| 25 | 14.2 | 4:49 | 7:04 |
| 26 | 14.3 | 4:48 | 7:04 |
| 27 | 14.3 | 4:47 | 7:05 |
| 28 | 14.3 | 4:47 | 7:06 |
| 29 | 14.3 | 4:46 | 7:07 |
| 30 | 14.4 | 4:46 | 7:07 |
| 31 | 14.4 | 4:46 | 7:08 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 6.67 kWh/m².
For context, solar energy here swings from a low near 2.11 kWh/m² to a high of 7.32 kWh/m² in July across the year — May's 6.67 kWh/m² sits near the top of that range.
| 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) | 6.3 | 6.3 | 6.4 | 6.4 | 6.4 | 6.5 | 6.5 | 6.5 | 6.5 | 6.6 | 6.6 | 6.6 | 6.6 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.9 | 6.9 | 6.9 | 6.9 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.3 | Intense |
| 2 | 6.3 | Intense |
| 3 | 6.4 | Intense |
| 4 | 6.4 | Intense |
| 5 | 6.4 | Intense |
| 6 | 6.5 | Intense |
| 7 | 6.5 | Intense |
| 8 | 6.5 | Intense |
| 9 | 6.5 | Intense |
| 10 | 6.6 | Intense |
| 11 | 6.6 | Intense |
| 12 | 6.6 | Intense |
| 13 | 6.6 | Intense |
| 14 | 6.7 | Intense |
| 15 | 6.7 | Intense |
| 16 | 6.7 | Intense |
| 17 | 6.7 | Intense |
| 18 | 6.7 | Intense |
| 19 | 6.7 | Intense |
| 20 | 6.7 | Intense |
| 21 | 6.7 | Intense |
| 22 | 6.8 | Intense |
| 23 | 6.8 | Intense |
| 24 | 6.8 | Intense |
| 25 | 6.8 | Intense |
| 26 | 6.8 | Intense |
| 27 | 6.8 | Intense |
| 28 | 6.9 | Intense |
| 29 | 6.9 | Intense |
| 30 | 6.9 | Intense |
| 31 | 6.9 | Intense |
Is May a good time to visit Aci Castello?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is one of the better times to visit Aci Castello for general sightseeing.
What to pack for Aci Castello in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Aci Castello sees daytime highs around 20°C and nights near 17°C. Pack sun protection. About 3 days see rain.
Sea temperature near Aci Castello in May
The nearest coast averages about 18°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 20 km away) is warmest in August at about 26°C and coldest in February near 15°C.
It's comfortable for a long swim from Jun 2 to Nov 11 — about 5.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 15 | 15 | 15 | 16 | 18 | 22 | 25 | 26 | 25 | 23 | 20 | 17 |
| Comfort | Cool | Bracing | Bracing | Cool | Cool | Refreshing | Warm | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 15 | Cool |
| Feb | 15 | Bracing |
| Mar | 15 | Bracing |
| Apr | 16 | Cool |
| May | 18 | Cool |
| Jun | 22 | Refreshing |
| Jul | 25 | Warm |
| Aug | 26 | Warm |
| Sep | 25 | Warm |
| Oct | 23 | Refreshing |
| Nov | 20 | Cool |
| Dec | 17 | Cool |
UV index in Aci Castello in May
Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Aci Castello peaks around July 15 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 | 4 | 6 | 5 | 6 | 9 | 10 | 9 | 7 | 5 | 3 | 2 |
| Level | Low | Moderate | High | Moderate | High | Very high | Extreme | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 4 | Moderate |
| Mar | 6 | High |
| Apr | 5 | Moderate |
| May | 6 | High |
| Jun | 9 | Very high |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 7 | High |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Aci Castello in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Aci Castello 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) | 12 | 15 | 16 | 17 | 17 | 16 | 14 | 15 | 14 | 13 | 12 | 11 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 15 | Moderate |
| Mar | 16 | Moderate |
| Apr | 17 | Moderate |
| May | 17 | Moderate |
| Jun | 16 | Moderate |
| Jul | 14 | Moderate |
| Aug | 15 | Moderate |
| Sep | 14 | Moderate |
| Oct | 13 | Moderate |
| Nov | 12 | Good |
| Dec | 11 | Good |
Where is Aci Castello?
Aci Castello sits at 37.6°N, 15.1°E, 15 m above sea level, in Italy. The nearest listed city is San Giovanni la Punta, 5.0 km away.
Topography around Aci Castello
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Aci Castello.
Within 3 km, the terrain around Aci Castello has significant variations in elevation — a maximum elevation change of 376 m around an average of 90 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,348 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,306 m.
The land around Aci Castello is covered by water (42%) and trees (38%) within 3 km, water (51%) and trees (27%) within 16 km, and water (36%), trees (27%) and grassland (21%) 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 Aci Castello (37.5556°, 15.1454°, elevation 15 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).