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Siena Weather in March
March in Siena averages 15°C (59°F) during the day and 5°C (41°F) at night. Quite a bit of rainfall is typical this month, with around 70 mm (2.8 in) on average. An umbrella is a good idea.
Rainfall in Siena in March
The climate data from previous years indicates about 13 days of rain, averaging 70 mm (2.8 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Siena in March
Temperatures in Siena in March top out at 15°C (59°F) and drop to 5°C (41°F) overnight. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows around 5°C (41°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Siena in March
With about 150 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.For Siena itself, May, June and September generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Siena Temperature in March
Min Temperature
5°C (41°F)
Max Temperature
15°C (59°F)
Chance of Rain
44%
Precipitation
70 mm (2.8 in)
Rainy days
13 days
Sunshine
150 hours
Percentage Sunshine
Siena Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Siena - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Siena typically stay consistent throughout March, with daily highs averaging around 15°C (59°F). Nights are cold, with lows typically ranging from 4°C (39°F) to 7°C (45°F).
Average temperatures in March
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in March
Historical weather records for Siena in March
Browse day-by-day weather records for Siena spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Siena historical weather extremes in March
According to our 50 years of weather records for Siena, the following extremes were recorded between 1976 and 2026.
- On March 31, 2021, temperatures climbed to 26°C (79°F), marking the warmest March day on record.
- On March 1, 2018, Siena saw its coldest March day with temperatures maxing out at 3°C (37°F).
- The coldest night in March in Siena was on March 7, 1987, with a minimum of -7°C (19°F).
Best Places in Italy in March
Find out more about the weather in Italy and which places have the best travel conditions in this month. See all of Italy in March →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Siena in March
Pack for changing conditions in Siena in March. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Siena in March
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming5/10 -
Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports10/10
Siena 3-Day Forecast
More climate data for Siena
See the full Siena climate overview or explore weather in Italy.
Popular in March
Where to go in March - average daytime high across popular destinations.
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