Siderno in Summer
In summer (June, July and August), Siderno sees average daytime highs around 26°C and overnight lows near 20°C, with 47 mm of rain over about 9 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 22°C in early June to 26°C by late August. The sky is clear or mostly clear about 86% of the time across summer, and the air most often feels muggy.
Summer is Siderno's best season of the year to visit on our travel score. For the whole year in context, see Siderno's year-round climate.
- Avg daytime high
- 26°C
- warmest season of the year
- Avg overnight low
- 20°C
- Rainfall
- 47 mm
- 9 wet days
- Avg wind
- 8 km/h
- Travel score
- 8.5
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Siderno in Summer
Over the season highs climb from about 22°C in early June to 26°C by late August.
A typical summer day in Siderno reaches about 26°C and drops to 20°C overnight. The warmest of the three months is August, the coolest June.
Siderno weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 12° / 8° | 100 | 12.4 | 9.6 | 3.1 |
| Feb | 12° / 7° | 89 | 12.2 | 10.5 | 3.0 |
| Mar | 14° / 9° | 88 | 11.3 | 11.7 | 4.0 |
| Apr | 16° / 11° | 63 | 9.9 | 13 | 5.2 |
| May | 20° / 14° | 33 | 6.2 | 14 | 7.2 |
| Jun | 24° / 18° | 18 | 3.5 | 14.6 | 8.6 |
| Jul | 27° / 21° | 11 | 2.2 | 14.4 | 8.7 |
| Aug | 27° / 21° | 19 | 3.2 | 13.5 | 8.3 |
| Sep | 24° / 19° | 73 | 8.9 | 12.3 | 7.5 |
| Oct | 21° / 16° | 105 | 10.7 | 11 | 6.5 |
| Nov | 17° / 12° | 109 | 11.9 | 9.9 | 5.2 |
| Dec | 13° / 9° | 111 | 13.4 | 9.4 | 3.6 |
Cloud cover in Summer
The sky is clear or mostly clear about 86% of the time across summer.
Chance of precipitation in Summer
Siderno gets around 47 mm of rain over 9 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 30 min in early June to 12 h 54 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 7.1 kWh/m².
Hazard calendar for Siderno
None of Siderno's seasonal hazards peak in summer. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Siderno's rainy season runs September–April, when most of the year's rain falls.
Is summer a good time to visit Siderno?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is one of the better times to visit Siderno for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Siderno in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Siderno sees daytime highs around 26°C and nights near 20°C. Pack light clothes and sun protection. About 9 days see rain.
Sea temperature near Siderno in Summer
The nearest coast averages about 25°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 18 km away) is warmest in August at about 27°C and coldest in February near 15°C.
It's comfortable for a long swim from May 28 to Nov 13 — about 5.6 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 | 19 | 22 | 25 | 27 | 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 | 19 | Cool |
| Jun | 22 | Refreshing |
| Jul | 25 | Warm |
| Aug | 27 | Warm |
| Sep | 25 | Warm |
| Oct | 23 | Refreshing |
| Nov | 20 | Cool |
| Dec | 17 | Cool |
UV index in Siderno in Summer
Clear-sky midday UV across summer averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Siderno peaks around July 17 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 | 5 | 7 | 9 | 10 | 9 | 6 | 5 | 3 | 2 |
| Level | Low | Moderate | High | Moderate | High | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | High |
| Apr | 5 | Moderate |
| May | 7 | High |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 6 | High |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Where is Siderno?
Siderno sits at 38.3°N, 16.3°E, 10 m above sea level, in Italy. The nearest listed city is Gioia Tauro, 39 km away.
Topography around Siderno
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Siderno.
Within 3 km, the terrain around Siderno has only modest variations in elevation — a maximum elevation change of 172 m around an average of 24 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,174 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,931 m.
The land around Siderno is covered by water (43%) and trees (22%) within 3 km, water (44%) and trees (34%) within 16 km, and water (60%) and trees (31%) 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 Siderno (38.2699°, 16.2961°, elevation 10 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.