Grosseto weather in October

In October, Grosseto sees average daytime highs of 20°C and overnight lows near 15°C, with 104 mm of rain across 9.9 wet days and about 10.8 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 45% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of October to 10 h 06 min by month's end. Set against the rest of the year, October is Grosseto's 8th-clearest and 6th-windiest month. For the whole year in context, see Grosseto's year-round climate.

Daytime high
20°
6th warmest
Overnight low
15°
8th coldest
Rainfall
104 mm
9.9 wet days
Daylight
10 h 48 min
6:36 AM – 5:25 PM
Cloud cover
48%
8th clearest
Wind
12 km/h
6th windiest
Solar energy
3.08 kWh/m²
Travel score
6.6
out of 10
Air quality
Good
PM2.5 9.3 µg/m³ · 2019

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 19°C by the end.

A typical October day in Grosseto reaches about 20°C in the afternoon and slips back to 15°C overnight — a 5°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, October runs about 4°C cooler than September and about 4°C warmer than November.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12217
22217
32217
42217
52216
62216
72216
82116
92116
102116
112116
122116
132116
142115
152115
162015
172015
182015
192015
202015
212015
222015
232015
241914
251914
261914
271914
281914
291914
301914
311914

Grosseto 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 598.39.23.2
Feb12° / 587.910.33.5
Mar14° / 537.611.64.7
Apr17° / 11°538.513.15.8
May21° / 15°42714.47.2
Jun25° / 18°264.515.18.2
Jul28° / 21°152.414.88.0
Aug28° / 21°213.213.77.5
Sep25° / 19°767.612.37.5
Oct20° / 15°1049.910.86.6
Nov16° / 11°12212.29.64.8
Dec13° / 82108.93.5

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% 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 38%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26733
36634
46634
56535
66535
76436
86436
96337
106337
116337
126337
136238
146238
156238
166238
176238
186238
196238
206238
216238
226238
236139
246040
256040
265941
275842
285743
295743
305644
315545

Chance of precipitation in October

Any precipitation

Grosseto gets around 104 mm of rain over 9.9 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 32% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
132
232
332
432
533
633
733
833
933
1033
1133
1232
1332
1432
1532
1631
1731
1831
1930
2030
2130
2230
2330
2430
2530
2631
2731
2832
2933
3034
3135

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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 34% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
122303513
222313412
322323411
423333311
523343310
623353210
72436319
82536309
92637298
102738288
112838277
122938267
133138256
143238246
153337246
163437245
173536235
183735235
193834235
203933234
214033234
224132224
234232224
244331224
254431214
264431213
274532203
284632193
294732192
304833172
314933162

Wind in October

Winds average 12 km/h in October.

Across October, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 30 min at the start of October to 10 h 06 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 6:18 AM to 6:55 AM, and sunset from 5:51 PM to 5:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:185:51
211.56:195:49
311.46:215:47
411.46:225:45
511.36:235:44
611.36:245:42
711.26:255:40
811.26:275:38
911.16:285:37
1011.16:295:35
1111.16:305:33
1211.06:315:32
1311.06:335:30
1410.96:345:28
1510.96:355:27
1610.86:365:25
1710.86:375:23
1810.76:395:22
1910.76:405:20
2010.66:415:19
2110.66:425:17
2210.56:445:16
2310.56:455:14
2410.46:465:13
2510.46:475:11
2610.46:495:10
2710.36:505:08
2810.36:515:07
2910.26:535:06
3010.26:545:04
3110.16:555:03

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.08 kWh/m².

For context, solar energy here swings from a low near 1.59 kWh/m² to a high of 7.16 kWh/m² in July across the year — October's 3.08 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.7Moderate
33.7Moderate
43.6Moderate
53.6Moderate
63.5Moderate
73.5Moderate
83.4Moderate
93.4Moderate
103.3Moderate
113.3Moderate
123.3Moderate
133.2Moderate
143.2Moderate
153.1Moderate
163.1Moderate
173.0Moderate
183.0Moderate
193.0Moderate
202.9Moderate
212.9Moderate
222.8Moderate
232.8Moderate
242.8Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.5Moderate
302.5Moderate
312.5Moderate
Planning a trip in October

Hazard calendar for Grosseto

In seasonPeak

In October, Grosseto sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Grosseto's rainy season runs September–February, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Grosseto?

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

6.6
Sightseeing
6th-best month of the year
3.7
Beach & pool
6th-best month of the year

October is a reasonable time to visit Grosseto for sightseeing.

What to pack for Grosseto in October

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

In October, Grosseto sees daytime highs around 20°C and nights near 15°C. Worth packing: rain gear. About 10 days see rain.

rain gear

Sea temperature near Grosseto 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 15 km away) is warmest in August at about 25°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 3 to Oct 28 — about 4.9 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Grosseto in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Grosseto peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 14UV 9Dec 23UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr5High
May6High
Jun8Very high
Jul9Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Grosseto?

Grosseto sits at 42.8°N, 11.1°E, 10 m above sea level, in Italy. The nearest listed city is Follonica, 34 km away.

Colle di Val d'ElsaCecinaPoggibonsiRosignano Solvay-CastiglioncelloViterbo

Topography around Grosseto

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

Within 3 km, the terrain around Grosseto has only modest variations in elevation — a maximum elevation change of 21 m around an average of 9 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 562 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,724 m.

The land around Grosseto is covered by cropland (38%) and artificial surfaces (31%) within 3 km, cropland (36%), trees (28%) and grassland (23%) within 16 km, and water (40%) and trees (33%) within 80 km.

3 km
21 m
16 km
562 m
80 km
1,724 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
October weather nearby: Follonica 34 km · Piombino 51 km · Siena 64 km · Colle di Val d'Elsa 73 km · Cecina 77 km · Poggibonsi 79 km · Rosignano Solvay-Castiglioncello 89 km · Viterbo 90 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 Grosseto (42.763°, 11.1094°, 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. 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).