Rimini weather in September

In September, Rimini sees average daytime highs of 24°C and overnight lows near 17°C, with 75 mm of rain across 9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 22°C by the end. The sky is clear or mostly clear about 51% of the time in September, and the air most often feels humid.

Daylight stretches from about 13 h 06 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Rimini's 4th-clearest and 9th-windiest month. For the whole year in context, see Rimini's year-round climate.

Daytime high
24°
4th warmest
Overnight low
17°
9th coldest
Rainfall
75 mm
9 wet days
Daylight
12 h 18 min
5:55 AM – 6:13 PM
Cloud cover
42%
4th clearest
Wind
9 km/h
9th windiest
Solar energy
4.32 kWh/m²
Travel score
7.2
out of 10
Air quality
Elevated
PM2.5 15.9 µg/m³ · 2019

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 26°C in the first days to 22°C by the end.

A typical September day in Rimini reaches about 24°C in the afternoon and slips back to 17°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12619
22618
32618
42518
52518
62518
72518
82518
92517
102417
112417
122417
132417
142417
152417
162417
172316
182316
192316
202316
212316
222316
232216
242216
252215
262215
272215
282215
292215
302115

Rimini weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 608.81.49.11.7
Feb10° / 698.51.710.22.2
Mar13° / 668.50.711.63.8
Apr16° / 10°7110.4013.25.1
May21° / 14°659.3014.56.7
Jun26° / 18°506.7015.27.6
Jul28° / 20°385.80157.2
Aug28° / 20°497013.87.0
Sep24° / 17°759012.37.2
Oct19° / 13°839.6010.86.1
Nov14° / 9110.90.49.43.8
Dec10° / 8110.61.18.82.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% 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 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17624
27624
37525
47525
57426
67426
77327
87228
97129
107129
117030
127030
136931
146832
156733
166733
176634
186634
196535
206535
216535
226436
236436
246436
256436
266436
276436
286337
296238
306238

Chance of precipitation in September

Any precipitation

Rimini gets around 75 mm of rain over 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 31% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
130
230
330
430
530
630
730
831
931
1031
1131
1231
1332
1432
1532
1632
1732
1832
1932
2031
2131
2231
2330
2430
2529
2629
2729
2829
2929
3029

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 33% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1152541191
2162641171
3172641161
4182741140
5192840130
6202840120
7202940110
8212940100
922294090
1022294090
1123293980
1224303980
1324303880
1425313770
1526313670
1627323570
1728323460
1829333260
1930333160
2032343050
2133342850
2234342750
2335352540
2437362440
2538362330
2639372230
2739372130
2840382020
2941381920
3042381810

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 10 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
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 06 min 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 90 minutes over September. Sunrise moves from 5:37 AM to 6:12 AM, and sunset from 6:41 PM to 5:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:376:41
213.05:396:40
313.05:406:38
412.95:416:36
512.95:426:34
612.85:436:32
712.85:446:30
812.75:466:28
912.75:476:26
1012.65:486:25
1112.65:496:23
1212.55:506:21
1312.55:526:19
1412.45:536:17
1512.45:546:15
1612.35:556:13
1712.25:566:11
1812.25:576:09
1912.15:596:07
2012.16:006:05
2112.06:016:03
2212.06:026:01
2311.96:036:00
2411.96:055:58
2511.86:065:56
2611.86:075:54
2711.76:085:52
2811.76:095:50
2911.66:115:48
3011.66:125:46

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.32 kWh/m².

For context, solar energy here swings from a low near 1.34 kWh/m² to a high of 6.81 kWh/m² in July across the year — September's 4.32 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.0Bright
35.0Bright
44.9Bright
54.9Bright
64.8Bright
74.8Bright
84.7Bright
94.7Bright
104.6Bright
114.5Bright
124.5Bright
134.4Bright
144.4Bright
154.3Bright
164.3Bright
174.2Bright
184.2Bright
194.1Bright
204.1Bright
214.0Bright
224.0Moderate
233.9Moderate
243.9Moderate
253.8Moderate
263.8Moderate
273.7Moderate
283.7Moderate
293.6Moderate
303.6Moderate
Planning a trip in September

Is September a good time to visit Rimini?

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

7.2
Sightseeing
2nd-best month of the year
5.8
Beach & pool
4th-best month of the year

September is one of the better times to visit Rimini for general sightseeing.

What to pack for Rimini in September

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

In September, Rimini sees daytime highs around 24°C and nights near 17°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Rimini in September

The nearest coast averages about 23°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 26°C and coldest in February near 10°C.

It's comfortable for a long swim from May 29 to Oct 11 — about 4.5 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar11Bracing
Apr14Bracing
May18Cool
Jun23Refreshing
Jul25Warm
Aug26Warm
Sep23Refreshing
Oct19Cool
Nov16Cool
Dec13Bracing

UV index in Rimini in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Rimini peaks around July 15 at about 9 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr7High
May7High
Jun8Very high
Jul9Very high
Aug8Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Rimini 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 Rimini is worst in March — around 20 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Rimini's WHO annual average of 15.9 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1820 µg/m³Dec 1013 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb18Moderate
Mar20Moderate
Apr18Moderate
May17Moderate
Jun17Moderate
Jul15Moderate
Aug14Moderate
Sep13Moderate
Oct16Moderate
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Rimini?

Rimini sits at 44.1°N, 12.6°E, 5 m above sea level, in Italy. The nearest listed city is Riccione, 10 km away.

Topography around Rimini

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

Within 3 km, the terrain around Rimini has only modest variations in elevation — a maximum elevation change of 109 m around an average of 9 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 535 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,691 m.

The land around Rimini is covered by artificial surfaces (43%) within 3 km, water (44%) and cropland (20%) within 16 km, and trees (36%) and water (29%) within 80 km.

3 km
109 m
16 km
535 m
80 km
1,691 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Riccione 10 km · Bellaria-Igea Marina 12 km · San Marino 16 km · Cattolica 17 km · Cesenatico 21 km · Cesena 27 km · Cervia 29 km · Pesaro 33 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 Rimini (44.0575°, 12.5653°, elevation 5 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).