Terni, Italy experiences average highs of 21°C (70°F) and lows of 11°C (52°F) throughout the year. Rainfall is moderate, averaging about 10 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. Average highs have warmed by 0.8°C (1.4°F) across the available records.
Terni, Italy Weather & Climate 2026
Monthly climate averages for Terni, Italy. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Dec 
Wetter season: Jan–Nov At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.8/10
Best: June, August, September, October
UV Index
5
Low
Temperature 21°C / 11°C
Feels Like 21°C / 10°C
Rainy Days 10
Rainfall 84 mm
Sunshine 10 h
Humidity 74%
Wind Speed 10 km/h
Dew Point 11°C
Snow Days 3 days
Frost Days 4 days
Hottest Month
33°C
July
Avg Low20°C
Rain4days
Coldest Month
3°C
January
Avg High11°C
Rain11days
Driest Month
4days
July
Avg High33°C
Avg Low20°C
Windiest Month
12 km/h
March (Gusts 38)
Worst Time to Visit
Consider avoiding January, February, March, December due to frequent rain.
Sun Position
Sunrise 05:33
Daylight 15.3h
Sunset 20:50
Live conditions—
Terni on the map · live conditions
Terni, Italy
- Continent
- Europe
- Country
- Italy
- City
- Terni
- Population
- 111.2K
- Elevation
- 130 m
- Coordinates
- 42.56°, 12.64°
Seasonal Breakdown
Spring
Mar–May
Avg High 19°C
Avg Low 8°C
Rain 13 days/mo
Summer
Jun–Aug
Avg High 32°C
Avg Low 19°C
Rain 7 days/mo
2/3 best months
Autumn
Sep–Nov
Avg High 21°C
Avg Low 12°C
Rain 11 days/mo
2/3 best months
Winter
Dec–Feb
Avg High 12°C
Avg Low 3°C
Rain 10 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 11°C / 3°C . Feb: 13°C / 4°C . Mar: 15°C / 5°C . Apr: 19°C / 8°C . May: 23°C / 12°C . Jun: 30°C / 17°C . Jul: 33°C / 20°C . Aug: 33°C / 20°C . Sep: 27°C / 16°C . Oct: 22°C / 12°C . Nov: 16°C / 8°C . Dec: 12°C / 4°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 90 mm. Feb: 81 mm. Mar: 100 mm. Apr: 81 mm. May: 105 mm. Jun: 47 mm. Jul: 26 mm. Aug: 49 mm. Sep: 93 mm. Oct: 95 mm. Nov: 137 mm. Dec: 108 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 83%. Feb: 80%. Mar: 77%. Apr: 74%. May: 74%. Jun: 64%. Jul: 55%. Aug: 58%. Sep: 71%. Oct: 78%. Nov: 85%. Dec: 85%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 10 km/h . Feb: 11 km/h . Mar: 12 km/h . Apr: 11 km/h . May: 11 km/h . Jun: 11 km/h . Jul: 11 km/h . Aug: 11 km/h . Sep: 10 km/h . Oct: 10 km/h . Nov: 10 km/h . Dec: 10 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 8h. Mar: 9h. Apr: 11h. May: 12h. Jun: 13h. Jul: 13h. Aug: 12h. Sep: 10h. Oct: 9h. Nov: 7h. Dec: 6h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 6. May: UV 7. Jun: UV 8. Jul: UV 8. Aug: UV 7. Sep: UV 6. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 5 days. Feb: 4 days. Mar: 3 days. Apr: 1 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 1 days. Dec: 3 days.
Climate Trends
Average highs have warmed by 0.8°C (1.4°F) across the available records. Average rainfall is trending drier by about 17 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jun 2025 · 33°C | Jul · 33°C |
| Coldest month | Dec 2025 · 4°C | Jan · 3°C |
| Wettest month | Mar 2025 · 140 mm | Nov · 137 mm |
| Windiest month | Jul 2025 · 12 km/h | Mar · 12 km/h |
Month-by-Month Weather Table
January
Poor 
February
Fair March
Fair April
Good May
Good June best
Excellent July
Good August best
Excellent September best
Excellent October best
Excellent November
Good December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 11°C / 3°C | 9°C / 0°C | 11days (90 mm) Wet | 6.3h Fair | 83% Humid | 2 Low | Poor | View Details |
| February | 13°C / 4°C | 11°C / 1°C | 9days (81 mm) Wet | 7.6h Good | 80% Humid | 2.9 Moderate | Fair | View Details |
| March | 15°C / 5°C | 14°C / 3°C | 11days (100 mm) Wet | 9h Good | 77% Humid | 4.2 Moderate | Fair | View Details |
| April | 19°C / 8°C | 19°C / 6°C | 12days (81 mm) Wet | 10.7h Excellent | 74% Muggy | 6 High | Good | View Details |
| May | 23°C / 12°C | 23°C / 11°C | 15days (105 mm) Wet | 11.6h Excellent | 74% Muggy | 6.8 High | Good | View Details |
| June best | 30°C / 17°C | 31°C / 18°C | 8days (47 mm) Wet | 13.2h Excellent | 64% Muggy | 7.5 Very High | Excellent | View Details |
| July | 33°C / 20°C | 34°C / 22°C | 4days (26 mm) Good | 13.4h Excellent | 55% Moderate | 7.5 Very High | Good | View Details |
| August best | 33°C / 20°C | 34°C / 22°C | 8days (49 mm) Wet | 12.2h Excellent | 58% Moderate | 6.9 High | Excellent | View Details |
| September best | 27°C / 16°C | 27°C / 16°C | 9days (93 mm) Wet | 10.3h Excellent | 71% Muggy | 5.5 High | Excellent | View Details |
| October best | 22°C / 12°C | 22°C / 11°C | 10days (95 mm) Wet | 8.5h Good | 78% Humid | 3.8 Moderate | Excellent | View Details |
| November | 16°C / 8°C | 15°C / 6°C | 13days (137 mm) Wet | 6.5h Fair | 85% Humid | 2.5 Moderate | Good | View Details |
| December | 12°C / 4°C | 11°C / 1°C | 10days (108 mm) Wet | 6.2h Fair | 85% Humid | 2 Low | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Terni are June, August, September, October, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Terni, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Terni is July, with average daytime highs of 33°C (91°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Terni is January, with average overnight lows of 3°C (37°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Terni is November, averaging 137mm of precipitation across 13 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Terni runs through May, November, April, January, with the heaviest rainfall in May. Based on 10-year averages for Terni.
Terni receives approximately 116 sunshine hours per year. The sunniest month is July with around 13 hours. Based on climate data for Terni.
The least favorable months to visit Terni are January, February, March, December, primarily due to frequent rain. For the best conditions, consider June, August, September, October instead.
The annual average UV index in Terni is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Terni is 74%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Terni receives snow. Months with snowfall average 3 snow days and 3 cm (1 in) of accumulation, with about 4 frost days during winter.
Average wind speeds in Terni are 10 km/h (6 mph). The windiest month is March with peak winds reaching 12 km/h (7 mph) (gusts up to 38 km/h / 24 mph).
Terni averages 8 clear-sky days per month with overall cloud cover around 48%. The clearest skies occur in July.
The annual average dew point in Terni is 11°C (52°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Terni has a Hot-Summer Mediterranean climate, classified as Csa under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Terni ranges from 10°C (50°F) to 21°C (70°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Terni. It earns a climate score of 9.2/10 with Excellent.
For June in Terni, pack Umbrella, Breathable clothing, Sunscreen (SPF 30+), Sun hat, Sunglasses. With average highs of 30°C (85°F) and 8 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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