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Giglio weather & best time to visit

Sun, sea & sand

Giglio at a glance

Best time
Jun – Sep
Warmest month
Aug · 30°
Warmest sea
Aug · 25.2°
Sunshine a year
2,680 h
Rain a year
798 mm
Climate
Mediterranean
Time zone
UTC+1 / UTC+2
Elevation
467 m

Climate in Giglio

Giglio has a Mediterranean climate with warm to hot, dry summers and mild, wetter winters. August is the warmest month with average highs of 30 °C, while January is the coolest at 10 °C. With around 2,680 hours of sunshine a year, Giglio is sunny; July is the sunniest month with 10.9 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Giglio

The best time to visit Giglio is from June to September. For a beach holiday – sea from 21 °C, warm and mostly dry – go from June to September. For sightseeing, day trips and hiking, conditions are most comfortable from April to June and from September to October. The wettest month is November with 140 mm of precipitation.

Giglio through the seasons

How the weather changes over the seasons, with averages for each.

Giglio in spring

Mar – May

36

Poor

  • 14–22 °C by day
  • Sea 16 °C
  • 7.7 h of sun a day
  • 25 rainy days in all

Giglio in summer

Jun – Aug

97

Excellent

  • 27–30 °C by day
  • Sea 24 °C
  • 10.4 h of sun a day
  • 10 rainy days in all

Giglio in autumn

Sep – Nov

48

Fair

  • 15–25 °C by day
  • Sea 21 °C
  • 6.2 h of sun a day
  • 32 rainy days in all

Giglio in winter

Dec – Feb

18

Poor

  • 10–11 °C by day
  • Sea 15 °C
  • 5.0 h of sun a day
  • 30 rainy days in all

Which month for what?

Beach & swimming

Jun – Sep

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Apr – Jun, Sep – Oct

15–28 °C and not too much rain

Rainy months

Nov

Rainy season or more than 12 rainy days

Find your perfect month

Tell us what you like and we rate every month in Giglio for you.

Swimming in the sea
Sunshine
Little rain

Your best months: June – August

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

38

Holiday weather in October

Poor

Best time to visit: June – September

Good forSightseeing & walks

A typical day in October

  1. Morning, 08:00: about 14°
  2. Midday, 13:00: about 19°
  3. Afternoon, 16:00: about 19°
  4. Evening, 20:00: about 17°
  5. Night, 23:00: about 16°

07:2818:36

Cool evenings: pack a jumper or a jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 07:10–08:06 · evening 17:58–18:54
Blue hour
Morning 06:59–07:10 · evening 18:54–19:05

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Giglio compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 22° at the start of the month to 17° at the end. The sea cools from 22° to 20°. The days get 1.3 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high22°17°
Night-time low15°12°
Sea22°20°
Daylight11.8 h10.5 h

What is the weather like in Giglio in October?

In October, Giglio is mild: daytime highs average 20 °C, and nights cool down to about 14 °C. The sea averages 20.9 °C – refreshing for a swim. Expect around 6.0 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 111 mm in total. All in all, October is not an ideal month for a holiday in Giglio.

More details for October

Daylight
11 h 9 min07:28 – 18:36
UV index
4 · moderateclear sky, noon (estimate)All months
Muggy days
3 daysdew point 18 °C or moreAll months
Wind
22 km/haverage daily peakAll months
Cloud cover
49 %on averageAll months
Hot days
0 days30 °C or moreAll months
Time zone
UTC+2offset from UTC

How the score comes together

  • Temperatureweight 35 %8 %
  • Seaweight 25 %56 %
  • Sunshineweight 20 %50 %
  • Few rainy daysweight 20 %55 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in October

  • Swimwear
  • Sunscreen
  • A jumper for the evenings
  • Rain jacket or umbrella

Compare two months in Giglio

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

July has the better holiday weather in Giglio: score 100 against 38. In July, days are 10 °C warmer than in October. The sea is 4 °C warmer in July. July has 8 fewer rainy days. The sun shines 5 hours longer a day in July.

October vs July, Giglio
MonthOctoberJuly
Holiday weather score38100better
Daytime high20°30°
Night-time low14°21°
Sea20.9°24.6°
Sunshine6.0 h10.9 hbetter
Rainy days102better
Rainfall111 mm13 mmbetter
Muggy days3better22

Based on the climate averages 1996–2025.

Giglio month by month

The typical weather for every month at a glance.

17January10° · Sea 15° · 4.6 h

In January, Giglio is cool: daytime highs average 10 °C, and nights cool down to about 5 °C. The sea averages 14.7 °C – swimming is only for the hardy. Expect around 4.6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 76 mm in total. All in all, January is not an ideal month for a holiday in Giglio.

Giglio in January
23February11° · Sea 14° · 5.9 h

In February, Giglio is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sea averages 14.1 °C – swimming is only for the hardy. Expect around 5.9 hours of sunshine a day. Rain falls on about 9 days, adding up to 73 mm. All in all, February is not an ideal month for a holiday in Giglio.

Giglio in February
25March14° · Sea 14° · 6.5 h

In March, Giglio is cool: daytime highs average 14 °C, and nights cool down to about 7 °C. The sea averages 14.1 °C – swimming is only for the hardy. The sun shines for around 6.5 hours a day. Rain falls on about 9 days, adding up to 63 mm. All in all, March is not an ideal month for a holiday in Giglio.

Giglio in March
29April17° · Sea 15° · 7.5 h

In April, Giglio is mild: daytime highs average 17 °C, and nights cool down to about 10 °C. The sea averages 15.2 °C – swimming is only for the hardy. The sun shines for around 7.5 hours a day. Rain falls on about 8 days, adding up to 54 mm. All in all, April is not an ideal month for a holiday in Giglio.

Giglio in April
54May22° · Sea 18° · 9.1 h

In May, Giglio is warm: daytime highs average 22 °C, and nights cool down to about 14 °C. The sea averages 18.1 °C – bracing, so a wetsuit helps for longer swims. With around 9.1 hours of sunshine a day, there is plenty of sun. Rain falls on about 8 days, adding up to 46 mm. All in all, May is a so-so month for a holiday in Giglio.

Giglio in May
92June27° · Sea 22° · 10.1 h

In June, Giglio is warm: daytime highs average 27 °C, and nights cool down to about 18 °C. The sea averages 21.9 °C – refreshing for a swim. With around 10.1 hours of sunshine a day, there is plenty of sun. Rain is rare: about 4 days bring 24 mm in total. All in all, June is an excellent month for a holiday in Giglio.

Giglio in June
100July30° · Sea 25° · 10.9 h

In July, Giglio is hot: daytime highs average 30 °C, and even at night it stays warm at around 21 °C. The sea averages 24.6 °C – pleasant for swimming. With around 10.9 hours of sunshine a day, there is plenty of sun. Rain is rare: about 2 days bring 13 mm in total. On about 17 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is an excellent month for a holiday in Giglio.

Giglio in July
100August30° · Sea 25° · 10.2 h

In August, Giglio is hot: daytime highs average 30 °C, and even at night it stays warm at around 21 °C. The sea averages 25.2 °C – pleasant for swimming. With around 10.2 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 25 mm in total. On about 17 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is an excellent month for a holiday in Giglio.

Giglio in August
89September25° · Sea 23° · 8.0 h

In September, Giglio is warm: daytime highs average 25 °C, and nights cool down to about 17 °C. The sea averages 23.4 °C – pleasant for swimming. The sun shines for around 8.0 hours a day. Rain falls on about 8 days, adding up to 75 mm. All in all, September is an excellent month for a holiday in Giglio.

Giglio in September
38October20° · Sea 21° · 6.0 h

In October, Giglio is mild: daytime highs average 20 °C, and nights cool down to about 14 °C. The sea averages 20.9 °C – refreshing for a swim. Expect around 6.0 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 111 mm in total. All in all, October is not an ideal month for a holiday in Giglio.

Giglio in October
18November15° · Sea 19° · 4.7 h

In November, Giglio is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 18.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 4.7 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 140 mm in total. All in all, November is not an ideal month for a holiday in Giglio.

Giglio in November
14December11° · Sea 16° · 4.4 h

In December, Giglio is cool: daytime highs average 11 °C, and nights cool down to about 6 °C. The sea averages 16.1 °C – swimming is only for the hardy. Expect around 4.4 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 99 mm in total. All in all, December is not an ideal month for a holiday in Giglio.

Giglio in December

Climate in detail

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Giglio

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Cold 0–8°
  • Cool 8–15°
  • Pleasant 15–20°
  • Warm 20–24°
  • muggy month (15+ muggy days)

CoolOctober: nights around 14°. A duvet at night and a jumper for the evening. Muggy on about 3 days (dew point 18 °C or more).

The coolest nights are in February (5°), the warmest in August (21°). Tropical nights of 20 °C and more are the rule from July to August; then air conditioning or a fan helps you sleep. Nights are pleasant for sleeping (15 to 20 °C) in June and in September. Nights fall below 8 °C on average from December to March, so the room should be heated. It is muggy (dew point 18 °C or more) on about 72 days a year, mostly from July to August.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 20°Night 14°Sea 21°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan1710°5°14.7°4.6 h1076
FebruaryFeb2311°5°14.1°5.9 h973
MarchMar2514°7°14.1°6.5 h963
AprilApr2917°10°15.2°7.5 h854
MayMay5422°14°18.1°9.1 h846
JuneJun9227°18°21.9°10.1 h424
JulyJul10030°21°24.6°10.9 h213
AugustAug10030°21°25.2°10.2 h325
SeptemberSep8925°17°23.4°8.0 h875
OctoberOct3820°14°20.9°6.0 h10111
NovemberNov1815°10°18.5°4.7 h13140
DecemberDec1411°6°16.1°4.4 h1299

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

42.36° N, 10.91° E · 467 m · Europe/Rome

Swimming calendar

Sea temperature in Giglio

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October20.9°Crefreshing

8 in 10 years: 19.9 – 22.0 °C

Swimming season: Jun – Oct

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 20.9°8 in 10 years 19.9° – 22.0°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Giglio ranges from 14.1 °C in February to 25.2 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.

From October to March the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 24.1 and 26.5 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan14.7°13.9°15.4°cold
FebruaryFeb14.1°13.4°14.6°cold
MarchMar14.1°13.6°14.6°cold
AprilApr15.2°14.5°15.9°cold
MayMay18.1°17.4°19.0°fresh
JuneJun21.9°20.8°23.4°refreshing
JulyJul24.6°23.3°26.0°pleasant
AugustAug25.2°24.1°26.5°pleasant
SeptemberSep23.4°22.2°24.7°pleasant
OctoberOct20.9°19.9°22.0°refreshing
NovemberNov18.5°17.5°19.4°fresh
DecemberDec16.1°15.2°17.0°cold
Sunshine

Sunshine hours in Giglio

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,680 hours
Sunniest month
Jul · 10.9 h a day
Least sunshine
Dec · 4.4 h a day
OctoberSunshine 6.0 hDaylight 11.1 hShare of daylight 54 %
SunshineDaylight

In October, the sun shines for about 6.0 of 11.1 hours of daylight in Giglio, 54 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain

Rain in Giglio: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
798 mm on 96 days
Wettest month
Nov · 140 mm
Driest month
Jul · 13 mm
OctoberRainy days 10Rainfall 111 mm

In October, Giglio has about 10 rainy days with 111 mm of rain in total.

Sun protection

UV index in Giglio

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
4 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.

The sun is strongest in June (UV 10).

Minutes until sunburn in October

Very fair skin
about 35 min
Fair skin
about 45 min
Light brown skin
about 65 min
Olive skin
about 80 min

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds

Wind and clouds in Giglio

How breezy and how cloudy Giglio is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
22 km/h · moderate breeze
Windiest month
Nov · 25 km/h
Calmest month
Aug · 18 km/h
OctoberWind 22 km/hBeaufort 4
20
WindBeaufort 4

In October, the wind in Giglio typically peaks at 22 km/h during the day: Beaufort 4, moderate breeze.

Breezy months for windsurfing and kiting

From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: Sep – Apr.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
43 % · mostly sunny
Clearest month
Jul · 19 %
Cloudiest month
Nov · 56 %
OctoberCloud cover 49 %Sunshine 6.0 h

In October, cloud covers on average 49 % of the sky over Giglio: variable cloud, with about 6.0 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Heat & humidity

Heat and humidity in Giglio

How often the day gets hot in Giglio (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
37 days
Hottest month
Aug · 30 °C
Hot months
Jul – Aug

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 20 °C

In October, Giglio has about 0 hot days, with an average daytime high of 20 °C: pleasant. Heat plays no part this month.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Planning a trip to Giglio

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Giglio in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Giglio has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (score 16).

  • Easter holidays

    Mar – Apr

    28

    Poor

    • 16 °C by day
    • Sea 15 °C
    • 7.2 h of sun a day
    • 8 rainy days a month
  • May half-term

    May – Jun

    62

    Good

    • 23 °C by day
    • Sea 19 °C
    • 9.3 h of sun a day
    • 7 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    100

    ExcellentBest holidays

    • 30 °C by day
    • Sea 25 °C
    • 10.4 h of sun a day
    • 3 rainy days a month

    Good for: Beach & swimming

  • October half-term

    Oct

    38

    Poor

    • 20 °C by day
    • Sea 21 °C
    • 6.0 h of sun a day
    • 10 rainy days a month

    Good for: Sightseeing & walks

  • Christmas holidays

    Dec – Jan

    16

    Poor

    • 11 °C by day
    • Sea 15 °C
    • 4.5 h of sun a day
    • 11 rainy days a month

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 2 h 5 min
Distance
1,330 km
Time zone
UTC+2
Jet lag
Hardly any (under 3 h)

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Compare & alternatives

Compare

Giglio compared

Put Giglio side by side with another destination.

Nearby:
Compare with home:

Giglio vs Grosseto

In October Grosseto has the better holiday weather (score 61 vs 38). During the day Grosseto is 3 °C warmer than Giglio.

Giglio vs Grosseto, in October
in OctoberGiglioGrosseto
Holiday weather score3861
Daytime high20°23°
Sea21°no sea nearby
Sunshine6 h6 h
Rainy days1010
Best timeJun – SepApr – Jun, Sep – Oct

Through the year

OctoberGiglio 20°Grosseto 23°
GiglioGrosseto
Go to Grosseto
Ranking

Italy in October: the best places

In October, Giglio ranks 31 among the 31 nearest destinations in this country.

  1. Grosseto23°79
  2. 2Viterbo21°77
  3. 3Rome23°77
  4. 4Castel Gandolfo20°77
  5. 5Assisi19°77
  6. 6Orvieto21°76
  7. 7Perugia19°76
  8. 8Tivoli23°76
  9. 31GiglioThis page20°21°38
All destinations: Italy

Near Giglio

Other destinations close by.

Places with a climate like Giglio

Destinations whose weather through the year is closest to Giglio's – good alternatives.

  1. 85 % similar38NinCroatia20°20°Best time: Jun – Sep
  2. 85 % similar38UgljanCroatia20°20°Best time: Jun – Sep
  3. 85 % similar47ŠibenikCroatia21°21°Best time: Jun – Sep
  4. 85 % similar57EriceItaly21°23°Best time: Jun – Sep

Frequently asked questions about Giglio

When is the best time to visit Giglio?

The best time to visit Giglio is from June to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Giglio?

The sea temperature in Giglio ranges from 14.1 °C in February to 25.2 °C in August. It is warm enough for a comfortable swim (20 °C and more) from June to October.

Can you swim in Giglio in October?

Yes. In October the sea averages 20.9 °C – refreshing for a swim.

What is the warmest month in Giglio?

August is the warmest month, with average highs of 30 °C and nights around 21 °C. January is the coolest month at 10 °C.

When does it rain most in Giglio?

The wettest month is November with 140 mm of precipitation. The driest month is July with 13 mm.

How many hours of sunshine does Giglio get?

Giglio gets around 2,680 hours of sunshine a year. The sunniest month is July with 10.9 hours a day; in December there are 4.4 hours a day.

What time zone is Giglio in?

Giglio is on UTC+1 in January and UTC+2 in July.

How long is the flight from London to Giglio?

A nonstop flight from London to Giglio takes about 2 h 5 min, for a straight-line distance of about 1,330 km.

Which school holidays are best for Giglio?

Giglio has its best school-holiday weather during the summer holidays (score 100) and its weakest during the Christmas holidays (score 16). Holiday ratings (0–100): Easter holidays 28, May half-term 62, summer holidays 100, October half-term 38, Christmas holidays 16.