Ancona sits on a climate boundary between Mediterranean and continental zones on Italy’s Adriatic coast. The city gets about 740mm (29 inches) of rain annually spread across the year, with a pronounced autumn peak. Summers are hot and sunny, winters are cool and damp, and the shoulder seasons bring the most comfortable conditions for sightseeing. The Adriatic Sea moderates temperatures year-round, keeping winter lows above freezing and summer highs from reaching the extremes you get inland.
Read our complete Ancona travel guide for an overview of the city.Ancona Weather in January
January is the coldest month with average highs of 10°C (50°F) and lows of 3°C (37°F). Rainfall averages 65mm (2.6 inches) over 10-12 days. Snow is rare in the city center but occasional on the Conero hills. The Adriatic Sea temperature drops to 13°C (55°F). Sunshine is limited to about 3 hours per day. You will need a warm coat and an umbrella.
For more information, see our things to do in Ancona.Ancona Weather in February
Temperatures inch up slightly with highs of 11°C (52°F) and lows of 4°C (39°F). February is the month with the most snowfall potential, averaging 1.6 snow days with up to 33mm accumulation on the hills. Rainfall holds at 60mm (2.4 inches). The sea stays cold at 12°C (54°F). Carnival season brings some festivity despite the gray skies. See our best time to visit guide for detailed information. See our events and festivals guide for detailed information.
Ancona Weather in March
Spring begins with highs reaching 14°C (57°F) and lows at 7°C (45°F). Rainfall stays at 65mm (2.6 inches). Sunshine increases to 5 hours daily. The sea warms slightly to 13°C (55°F). Pack layers: mornings can be chilly while afternoons feel pleasantly warm. This is a transitional month where you can get anything from a cold snap to an early warm spell.
For more information, see our Ancona neighborhoods guide.Ancona Weather in April
April brings comfortable spring weather with highs of 17°C (63°F) and lows of 10°C (50°F). Rainfall drops to 58mm (2.3 inches) over 9-10 days. You get 6-7 hours of sunshine and the sea temperature reaches 15°C (59°F). This is one of the best months for sightseeing before the summer crowds arrive. A light jacket suffices for most days.
For more information, see our where to stay in Ancona.Ancona Weather in May
May is warm and pleasant with highs of 22°C (72°F) and lows of 14°C (57°F). Rainfall holds at 55mm (2.2 inches). Sunshine increases to 8 hours daily. The Adriatic reaches 18°C (64°F), still cool for swimming but fine for a quick dip. The Conero Riviera beaches start to come alive and outdoor dining becomes the norm. This is arguably the best month to visit overall. See our travel tips and FAQ for detailed information.
Ancona Weather in June
Summer arrives with highs of 26°C (79°F) and lows of 18°C (64°F). Rainfall drops to 48mm (1.9 inches), the second driest month. You get 9-10 hours of sunshine. The sea warms to 22°C (72°F), making beach days at Portonovo and Sirolo genuinely enjoyable. Humidity remains moderate compared to southern Italy. Evenings are balmy and perfect for passeggiata along the port.
Ancona Weather in July
July is the hottest and driest month with highs of 29°C (84°F) and lows of 21°C (70°F). Rainfall averages just 38mm (1.5 inches) over 5-6 days. You get 10-11 hours of sunshine. The sea peaks at 25°C (77°F). This is beach season at full force: the Conero beaches are packed, especially on weekends. Air conditioning is essential for hotel rooms.
Ancona Weather in August
August matches July for heat with highs of 29°C (84°F) and lows of 21°C (70°F). Rainfall ticks up to 52mm (2 inches) with occasional thunderstorms breaking the heat. Sea temperature peaks at 25-26°C (77-79°F). This is Ferragosto month: many locals leave the city and some restaurants close for 1-2 weeks around August 15. Beaches are at maximum capacity.
Ancona Weather in September
September is excellent with highs of 25°C (77°F) and lows of 18°C (64°F). Rainfall increases to 70mm (2.8 inches). You still get 8 hours of sunshine. The sea holds its summer warmth at 23°C (73°F) through mid-month. This is the sweet spot for a beach-plus-sightseeing combination: the crowds thin out but the weather remains swimming-friendly through the third week.
Ancona Weather in October
Autumn takes hold with highs of 20°C (68°F) and lows of 13°C (55°F). Rainfall jumps to 78mm (3.1 inches), the start of the wet season. Sunshine drops to 5-6 hours. The sea cools to 20°C (68°F). October can deliver beautiful clear days perfect for hiking the Conero trails, but you should expect rain roughly one day in three. Pack a waterproof layer.
Ancona Weather in November
November is the wettest month with 85mm (3.3 inches) of rain over 12-14 days. Highs reach 14°C (57°F) and lows drop to 8°C (46°F). You get only 3 hours of sunshine. The sea temperature falls to 17°C (63°F). This is the least pleasant month for tourism: persistent gray skies and frequent rain. However, hotel prices are at their lowest and museums are empty.
Ancona Weather in December
December brings winter conditions with highs of 11°C (52°F) and lows of 5°C (41°F). Rainfall averages 75mm (3 inches). Sunshine is minimal at 2-3 hours. The sea temperature drops to 15°C (59°F). Christmas markets appear in Piazza del Plebiscito and the city takes on a festive atmosphere despite the damp cold. Snow is unlikely but not impossible on the higher ground.
Ancona Weather by Month: Quick Reference Table
| Month | Avg High (C/F) | Avg Low (C/F) | Rain (mm) | Rain Days | Sea (C) | Sun (hrs) |
|---|---|---|---|---|---|---|
| Jan | 10 / 50 | 3 / 37 | 65 | 11 | 13 | 3 |
| Feb | 11 / 52 | 4 / 39 | 60 | 10 | 12 | 4 |
| Mar | 14 / 57 | 7 / 45 | 65 | 10 | 13 | 5 |
| Apr | 17 / 63 | 10 / 50 | 58 | 9 | 15 | 6 |
| May | 22 / 72 | 14 / 57 | 55 | 8 | 18 | 8 |
| Jun | 26 / 79 | 18 / 64 | 48 | 7 | 22 | 9 |
| Jul | 29 / 84 | 21 / 70 | 38 | 5 | 25 | 10 |
| Aug | 29 / 84 | 21 / 70 | 52 | 6 | 26 | 9 |
| Sep | 25 / 77 | 18 / 64 | 70 | 8 | 23 | 8 |
| Oct | 20 / 68 | 13 / 55 | 78 | 9 | 20 | 6 |
| Nov | 14 / 57 | 8 / 46 | 85 | 13 | 17 | 3 |
| Dec | 11 / 52 | 5 / 41 | 75 | 12 | 15 | 2 |
