Yes, for travelers who want archaeology, walks and quiet towns in cool, dry-ish weather. Afternoons reach 64°F (18°C) in Cagliari, warm enough for a long day outdoors in a light jacket.
Nights stay cool, and the sea is still cold. March is a month for sites and trails, with swimming left for later.
At a glance
- Afternoon high, Cagliari: 64°F (18°C)
- Night low, Cagliari: 45°F (7°C)
- Afternoon high, Olbia: 63°F (17°C)
- Night low, Olbia: 43°F (6°C)
- Rainy days: six in Cagliari, six in Olbia
- Sea near Cagliari: 57°F (14°C)
What is the weather like in Sardinia in March?
| Month | Average high | Average low | Rain | Rainy days | Sea |
|---|---|---|---|---|---|
| February | 59°F (15°C) | 41°F (5°C) | 1.3 in (34 mm) | 6 | 57°F (14°C) |
| March | 64°F (18°C) | 45°F (7°C) | 1.3 in (32 mm) | 6 | 57°F (14°C) |
| April | 68°F (20°C) | 50°F (10°C) | 1.8 in (46 mm) | 7 | 59°F (15°C) |
*Long-term monthly averages.*
March is mild and a little damp. Cagliari reaches 64°F (18°C) in the afternoon and drops to 45°F (7°C) at night. Olbia is a degree or two cooler, at 63°F (17°C) by day and 43°F (6°C) at night.
Both cities see six rainy days in the month, meaning days with at least 1 mm of rain. That leaves most days dry. Plan outdoor sights for the middle of the day, and keep a rain layer in the bag.
February is a few degrees cooler, with afternoons at 59°F (15°C) in Cagliari. April adds roughly four degrees, with highs near 68°F (20°C), and a little more rain. March sits between the two, closer to winter in the evening and closer to spring at noon.
Where to go in Sardinia in March
Cagliari
The city has an official tourism office on the ground floor of the Town Hall, via Roma 145, a useful first stop. The Nuragica museum experience is at via Roma 191, and the botanical garden covers five hectares and was founded in 1866 by Patrizio Gennari. Afternoons at 64°F (18°C) suit a walk between them.
Su Nuraxi di Barumini
This nuragic complex has been UNESCO World Heritage since 1997. The heritage site is open every day of the year, so March needs no special planning. Cool air makes the walk around the archaeological area comfortable.
Asinara National Park
Asinara sits on the northwestern tip of Sardinia and has been a national park since 1997. The island can be reached from Porto Nuovo at Stintino and from Porto Torres. Admission to the park is free, and March temperatures suit a day of trails better than a beach day.
Tharros
The ancient city lies in the Sinis landscape, between the sea and the ponds. Phoenician colonists founded it at the end of the 8th century BC, and it was abandoned in 1070. The site has guided tours and a bookshop, and an open coastal site is pleasant in a mild March afternoon.
Sadali and Isili
Sadali has a natural urban waterfall, Su Stampu de su Turrunu, 16 meters high. Isili has the Is Paras nuraghe, 12 meters tall, and the San Sebastiano lake. The two towns make a calm inland day away from the coast.
What to do in Sardinia in March
Su Nuraxi and Casa Zapata with a guide
The Su Nuraxi archaeological area can only be visited with a guided tour. Tours leave every 30 minutes and last about one hour. A single ticket covers Su Nuraxi, Casa Zapata and the Giovanni Lilliu Centre, with the guided tour included.
Casa Zapata is a 16th-century noble palace with a nuraghe under its floor. Both it and the Lilliu Centre are guided visits of about 30 minutes, also leaving every 30 minutes. Wear comfortable clothing and non-slip shoes, as the site advises, since March ground can be damp.
Asinara trails by bike, horse or train
The trails cover five thousand hectares. You can explore them by mountain bike, on horseback, in an off-road vehicle or by tourist train. The Asinara donkey is the park’s symbol.
The marine protected area was set up in 2002. With afternoons near 63°F (17°C), a bike or the train suits the day better than a swim. Check the crossing from Stintino or Porto Torres before you set out.
Castle of San Michele and Cagliari’s parks
The Castle of San Michele, on Via Sirai near via Cinquini, now hosts exhibitions, lectures and other cultural events. It makes an easy indoor stop if a rainy day comes up.
Monte Urpinu Park is a place for families, picnics and strolls. Monte Claro Park has paths for walking and jogging. Both fit a dry March afternoon.
Isili, Sadali and the Trenino Verde
The water is cold in March, so a pedalo ride suits a mild afternoon in a jacket.
Sadali can be visited by Trenino Verde on a guided excursion. Check the departure details with the operator before you plan the day around it.
Is Sardinia busy in March?
The Barumini site receives an average of 150,000 visitors a year, and its tours leave every 30 minutes.
Tourist tax is charged per person and per night. It can reach 5 euros a night, and each town sets its own rates. In Capoterra it has applied since February 1, 2026.
In Loiri Porto San Paolo, 1 and 2 star hotels and campsites pay €1.50, 3 star hotels €2.50, 4 star hotels €3.00 and 5 star hotels €4.00. B&Bs, agriturismi and holiday apartments pay €2.00. The rate applies for a maximum of 10 consecutive days.
Can you swim in Sardinia in March?
The sea near Cagliari averages 57°F (14°C) in March. That’s a monthly average, so a cold dip is likely, not a long swim. Most visitors will enjoy walking the shore more than getting in.
The sea was at 57°F (14°C) in February and reaches 59°F (15°C) in April. The change is small, so March is only a little cooler than the following month.
What to pack for Sardinia in March
March asks for layers: warm by day, cool at night and showery on a few days.
- A light jacket for 45°F (7°C) nights in Cagliari, and 43°F (6°C) nights in Olbia
- A rain layer for the six rainy days
- Non-slip, comfortable shoes for the guided visits at Barumini
- Walking shoes or sneakers for Asinara’s trails, which cover five thousand hectares
- A sweater for the evening, when Olbia drops to 43°F (6°C)
What to know before visiting Sardinia in March
Barumini and Tharros both run guided visits, so arrive with time for a tour. Animals are not admitted at Barumini, except guide dogs, and their visit is possible only by reservation.
Asinara has free admission, but the island is reached by boat from Porto Nuovo at Stintino or from Porto Torres. Plan the crossing first, then the day on the trails.
Is March a good time to visit Sardinia?
Yes, especially for travelers who want archaeology, walks and mild days more than beach time. Afternoons at 64°F (18°C) and six rainy days make most days easy for outdoor sights.
Shifting four weeks later gains warmth, and shifting earlier gains little.
If you want swimming, April or later suits better, as March’s sea is 57°F (14°C). If you want sites and trails, March works well, with Barumini open every day and Asinara free to enter. With children, the parks of Cagliari and the Asinara train are easy choices.
Sources
- ncei.noaa.gov (https://www.ncei.noaa.gov/products/wmo-climate-normals), checked 2026-10-30
- italia.it (https://www.italia.it/fr/sardaigne/que-faire/la-sardaigne-au-dela-des-plages-laconi–sadali-et-isili), checked 2026-10-30
- fondazionebarumini.it (https://www.fondazionebarumini.it/biglietti-e-orari/), checked 2026-10-30
- fondazionebarumini.it (https://www.fondazionebarumini.it/fr/home-2/), checked 2026-10-30
- comune.loiriportosanpaolo.ss.it (https://www.comune.loiriportosanpaolo.ss.it/wp-content/uploads/2025/12/Delibera-n.-121-del-09-12-2025-tariffe-imposta-di-soggiorno-2026.pdf), checked 2026-10-30
- sardegnaturismo.it (https://www.sardegnaturismo.it/en/explore/asinara-national-park), checked 2026-10-30
- cultura.gov.it (https://cultura.gov.it/luogo/area-archeologica-di-tharros), checked 2026-10-30
- informacitta.comune.olbia.ot.it (https://informacitta.comune.olbia.ot.it/eventi/benvenuto-vermentino), checked 2026-10-30