San Salvo weather in September

In September, San Salvo sees average daytime highs of 25°C and overnight lows near 17°C, with 59 mm of rain across 6.9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 23°C by the end. The sky is clear or mostly clear about 52% of the time in September, and the air most often feels humid.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is San Salvo's 4th-clearest and 8th-windiest month. For the whole year in context, see San Salvo's year-round climate.

Daytime high
25°
4th warmest
Overnight low
17°
9th coldest
Rainfall
59 mm
6.9 wet days
Daylight
12 h 18 min
5:47 AM – 6:04 PM
Cloud cover
42%
4th clearest
Wind
9 km/h
8th windiest
Solar energy
4.51 kWh/m²
Travel score
7.5
out of 10

San Salvo is chief town of the homonym municipality.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 27°C in the first days to 23°C by the end.

A typical September day in San Salvo reaches about 25°C in the afternoon and slips back to 17°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 29°C. Set against its neighbours, September runs about 4°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12719
22719
32718
42718
52718
62618
72618
82618
92618
102618
112617
122617
132617
142517
152517
162517
172517
182517
192516
202516
212416
222416
232416
242416
252416
262416
272415
282315
292315
302315

San Salvo weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 678.919.33.0
Feb12° / 518.30.710.33.3
Mar15° / 568.60.411.74.7
Apr18° / 10°558.2013.16.1
May22° / 14°406.8014.37.4
Jun26° / 18°404.70157.8
Jul29° / 20°253.4014.77.0
Aug29° / 20°273.8013.76.9
Sep25° / 17°596.9012.37.5
Oct21° / 13°607.8010.96.9
Nov16° / 748.90.19.65.3
Dec13° / 7210.30.693.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17723
27624
37624
47525
57426
67426
77228
87228
97129
107129
117030
127030
136931
146931
156832
166733
176733
186733
196733
206634
216535
226535
236535
246535
256436
266436
276436
286436
296436
306337

Chance of precipitation in September

Any precipitation

San Salvo gets around 59 mm of rain over 6.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 23% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
120
220
321
422
522
622
723
823
923
1023
1124
1224
1324
1424
1524
1624
1724
1824
1924
2024
2124
2224
2323
2423
2523
2624
2724
2824
2924
3025

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the humid band about 36% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
171734357
281835336
381936315
492037295
592138274
6102239263
7102339243
8112440232
9112540222
10122540211
11122640211
12132740201
13132740190
14142840190
15142839180
16152939170
17162938170
18173037160
19183036150
20193135140
21213134130
22223233120
23233333110
24243432110
25253431100
2626353090
2726363080
2827372970
2928382860
3028382850

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over September. Sunrise moves from 5:31 AM to 6:02 AM, and sunset from 6:31 PM to 5:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:316:31
212.95:326:29
312.95:336:27
412.95:346:25
512.85:356:24
612.85:366:22
712.75:376:20
812.75:386:18
912.65:406:16
1012.65:416:15
1112.55:426:13
1212.55:436:11
1312.45:446:09
1412.45:456:07
1512.35:466:06
1612.35:476:04
1712.25:486:02
1812.25:496:00
1912.15:505:58
2012.15:515:56
2112.05:525:55
2212.05:545:53
2311.95:555:51
2411.95:565:49
2511.85:575:47
2611.85:585:46
2711.75:595:44
2811.76:005:42
2911.66:015:40
3011.66:025:38

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.51 kWh/m².

For context, solar energy here swings from a low near 1.59 kWh/m² to a high of 6.86 kWh/m² in July across the year — September's 4.51 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.2Bright
35.1Bright
45.1Bright
55.0Bright
65.0Bright
74.9Bright
84.9Bright
94.8Bright
104.8Bright
114.7Bright
124.7Bright
134.6Bright
144.6Bright
154.5Bright
164.5Bright
174.5Bright
184.4Bright
194.4Bright
204.3Bright
214.3Bright
224.2Bright
234.2Bright
244.1Bright
254.1Bright
264.0Bright
274.0Moderate
283.9Moderate
293.9Moderate
303.8Moderate
Planning a trip in September

Is September a good time to visit San Salvo?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.5
Sightseeing
2nd-best month of the year
6.8
Beach & pool
4th-best month of the year

September is one of the better times to visit San Salvo for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for San Salvo in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, San Salvo sees daytime highs around 25°C and nights near 17°C. Worth packing: light clothes and sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near San Salvo in September

The nearest coast averages about 24°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 15 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from May 31 to Oct 16 — about 4.6 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr14Bracing
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep24Refreshing
Oct20Refreshing
Nov17Cool
Dec15Cool

UV index in San Salvo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 San Salvo peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 9Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr5Moderate
May7High
Jun9Very high
Jul10Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in San Salvo in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in San Salvo is worst in April — around 18 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 11 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodApr 1118 µg/m³Dec 1011 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb16Moderate
Mar17Moderate
Apr18Moderate
May15Moderate
Jun15Moderate
Jul14Moderate
Aug14Moderate
Sep11Good
Oct13Moderate
Nov11Good
Dec11Good
Location & terrain

Where is San Salvo?

San Salvo sits at 42.0°N, 14.7°E, 100 m above sea level, in Italy. The nearest listed city is Vasto, 8.0 km away.

Topography around San Salvo

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Salvo.

Within 3 km, the terrain around San Salvo has only modest variations in elevation — a maximum elevation change of 191 m around an average of 67 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 699 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,770 m.

The land around San Salvo is covered by cropland (33%) and trees (21%) within 3 km, cropland (32%), water (26%) and trees (21%) within 16 km, and trees (32%), water (30%) and cropland (22%) within 80 km.

3 km
191 m
16 km
699 m
80 km
2,770 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Vasto 8.0 km · Termoli 22 km · Lanciano 35 km · Campobasso 54 km · Francavilla al Mare 56 km · Chieti 58 km · Torremaggiore 61 km · Pescara 63 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
Christian 81%unaffiliated 13%Muslim 5%other 1%

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 San Salvo (42.0441°, 14.7333°, elevation 100 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).