Imperia in Fall
In fall (September, October and November), Imperia sees average daytime highs around 17°C and overnight lows near 12°C, with 342 mm of precipitation over about 30 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Over the season highs ease from about 22°C in early September to 11°C by late November. The sky is clear or mostly clear about 37% of the time across fall, and the air most often feels dry.
Fall is Imperia's 2nd-best season to visit on our travel score. For the whole year in context, see Imperia's year-round climate.
- Avg daytime high
- 17°C
- 2nd-warmest season
- Avg overnight low
- 12°C
- Precipitation
- 342 mm
- 30 wet days
- Avg wind
- 9 km/h
- Travel score
- 5.1
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Imperia in Fall
Over the season highs ease from about 22°C in early September to 11°C by late November.
A typical fall day in Imperia reaches about 17°C and drops to 12°C overnight. The warmest of the three months is September, the coolest November.
Imperia weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 8° / 4° | 73 | 7.2 | 3.2 | 9.1 | 1.7 |
| Feb | 9° / 4° | 62 | 6.8 | 3.1 | 10.2 | 2.0 |
| Mar | 12° / 6° | 78 | 9 | 2.1 | 11.6 | 3.1 |
| Apr | 14° / 9° | 103 | 12.3 | 1 | 13.2 | 3.9 |
| May | 17° / 12° | 83 | 12.4 | 0 | 14.5 | 5.3 |
| Jun | 21° / 16° | 72 | 11.5 | 0 | 15.2 | 6.4 |
| Jul | 24° / 18° | 55 | 10.4 | 0 | 14.9 | 7.2 |
| Aug | 24° / 18° | 52 | 10.9 | 0 | 13.8 | 7.1 |
| Sep | 21° / 15° | 90 | 10.5 | 0 | 12.3 | 6.5 |
| Oct | 17° / 12° | 108 | 9.9 | 0.1 | 10.8 | 5.4 |
| Nov | 12° / 8° | 144 | 10 | 1.3 | 9.5 | 3.3 |
| Dec | 9° / 4° | 89 | 8.1 | 2.7 | 8.8 | 2.1 |
Cloud cover in Fall
The sky is clear or mostly clear about 37% of the time across fall.
Chance of precipitation in Fall
Imperia gets around 342 mm of rain and snow over 30 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 9 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 h 06 min in early September to 9 hours by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.1 kWh/m².
Is fall a good time to visit Imperia?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Imperia for sightseeing.
What to pack for Imperia in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Imperia sees daytime highs around 17°C and nights near 12°C. Worth packing: a warm layer and rain gear. About 30 days see rain.
Sea temperature near Imperia in Fall
The nearest coast averages about 20°C across fall — 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 25°C and coldest in February near 13°C.
It's comfortable for a long swim from Jun 7 to Oct 12 — about 4.2 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 13 | 14 | 15 | 18 | 21 | 24 | 25 | 22 | 20 | 17 | 15 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Warm | Refreshing | Cool | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 13 | Bracing |
| Mar | 14 | Bracing |
| Apr | 15 | Bracing |
| May | 18 | Cool |
| Jun | 21 | Refreshing |
| Jul | 24 | Refreshing |
| Aug | 25 | Warm |
| Sep | 22 | Refreshing |
| Oct | 20 | Cool |
| Nov | 17 | Cool |
| Dec | 15 | Cool |
UV index in Imperia in Fall
Clear-sky midday UV across fall averages 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 Imperia peaks around July 14 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 3 | 5 | 7 | 7 | 8 | 9 | 7 | 5 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | Very high | High | Very high | Very high | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | Very high |
| May | 7 | High |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 7 | High |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Imperia in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Imperia is worst in March — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 16 | 16 | 19 | 18 | 15 | 15 | 13 | 14 | 13 | 14 | 13 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 16 | Moderate |
| Mar | 19 | Moderate |
| Apr | 18 | Moderate |
| May | 15 | Moderate |
| Jun | 15 | Moderate |
| Jul | 13 | Moderate |
| Aug | 14 | Moderate |
| Sep | 13 | Moderate |
| Oct | 14 | Moderate |
| Nov | 13 | Moderate |
| Dec | 14 | Moderate |
Where is Imperia?
Imperia sits at 43.9°N, 8.0°E, 10 m above sea level, in Italy. The nearest listed city is Sanremo, 22 km away.
Topography around Imperia
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Imperia.
Within 3 km, the terrain around Imperia has significant variations in elevation — a maximum elevation change of 351 m around an average of 72 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,165 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,195 m.
The land around Imperia is covered by trees (40%) and water (38%) within 3 km, water (52%) and trees (39%) within 16 km, and trees (45%) and water (38%) 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 Imperia (43.8892°, 8.0393°, 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.