Yes, for travelers who want archaeology and history: Sardinia has 5 UNESCO treasures, and Su Nuraxi di Barumini, a nuragic complex, has been on the UNESCO World Heritage list since 1997.
The stake is the water and the sky. The sea sits near 59°F (15°C), nights are cool, and rain falls on about six days of the month. Su Nuraxi di Barumini can only be visited on a guided tour, so plan around its departures.
At a glance
- Afternoon high in Cagliari: 68°F (20°C)
- Night low in Cagliari: 50°F (10°C)
- Afternoon high and night low in Olbia: 67°F (20°C) and 46°F (8°C)
- Rainy days: 6 to 7 in Cagliari, 6 in Olbia
- Sea near Cagliari: 59°F (15°C)
- Su Nuraxi di Barumini: open every day of the year, guided tours only
What is the weather like in Sardinia in April?
| Month | Average high | Average low | Rain | Rainy days | Sea |
|---|---|---|---|---|---|
| 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) |
| May | 75°F (24°C) | 56°F (13°C) | 1.0 in (26 mm) | 4 | 64°F (18°C) |
*Long-term monthly averages.*
April is mild. Afternoons reach 68°F (20°C) in Cagliari and 67°F (20°C) in Olbia, which is comfortable for walking around ruins and towns. Nights drop to 50°F (10°C) in Cagliari and 46°F (8°C) in Olbia.
Rain falls on 6 to 7 days in Cagliari and on 6 days in Olbia, with roughly two inches of precipitation in each. That is a shower or two per week, so keep a light rain layer in the bag. Put the outdoor sights, such as the Asinara trails or the Tharros ruins, on the mornings that look clear. The sea near Cagliari averages 59°F (15°C).
March is cooler. Cagliari reaches 64°F (18°C) in the afternoon and drops to 45°F (7°C) at night. May is clearly warmer, with highs of 75°F (24°C) in Cagliari and 75°F (24°C) in Olbia, and only about four rainy days. Shifting a month either way changes how many layers you carry and how often the sky interrupts a day.
Where to go in Sardinia in April
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. April’s mild afternoons suit a day on the trails, and admission to the park is free.
Su Nuraxi di Barumini
Barumini is the nuragic complex that has been UNESCO World Heritage since 1997. The site is open every day of the year. At 68°F (20°C), a guided hour among the stones is comfortable.
Tharros
Tharros lies in the Sinis landscape, between the sea and the ponds. Phoenician colonists founded the city at the end of the 8th century BC, and it was abandoned in 1070.
Cagliari
Cagliari is the base for city sights. The Tourist Office is on the ground floor of the Town Hall at via Roma 145. The Nuragica museum experience is at via Roma 191, and the Castle of San Michele is on Via Sirai.
Sadali and the Trenino Verde
Sadali has a natural waterfall, Su Stampu de su Turrunu, that is 16 meters high. The village can be visited by Trenino Verde on a guided excursion. April rain is a reason to look at the waterfall before choosing the day.
What to do in Sardinia in April
Su Nuraxi, Casa Zapata and the Lilliu Centre at Barumini
One ticket covers three sites: Su Nuraxi, the Casa Zapata museum complex and the Giovanni Lilliu Centre. Guided tours of Su Nuraxi leave every 30 minutes and last about 1 hour. Casa Zapata and the Lilliu Centre each have a guided tour of about 30 minutes, also departing every 30 minutes.
The site is 20,000 square meters and gets an average of 150,000 visitors a year. Tours are offered in Italian, English and French. Animals are not admitted, except guide dogs by reservation.
Asinara trails by bike, horse or tourist train
The trails of Asinara run over five thousand hectares. You can cover them by mountain bike, on horseback, in an off-road vehicle or by tourist train. The train and the vehicle are the easier options if showers threaten.
The Asinara donkey is the park’s identifying symbol, and the marine protected area was established in 2002.
Tharros in cool April light
The archaeological area of Tharros offers guided tours and a bookshop. The site is open and exposed to the sea, so a jacket makes the walk comfortable on a day with wind.
The city was founded by Phoenician colonists. Combining the visit with a morning at the Sinis coast gives a full day while the afternoon is still mild.
Cagliari’s parks and Castle of San Michele
Monte Urpinu Park is a destination for families, picnics and strolls. Monte Claro Park has paths for walking and jogging. Both are comfortable at 68°F (20°C) between showers.
The Castle of San Michele offers a space for exhibitions, lectures and cultural events. The Nuragica museum experience is a multimedia and sensory exhibition on the Nuragic people, which makes a good plan for a wet afternoon.
Isili’s lake and the Is Janas cave
At Isili you can rent a pedal boat on Lake San Sebastiano. The Is Janas cave is visited with a guide. Pedal boats suit a clear afternoon, and the cave suits a day of showers.
The nuraghe Is Paras at Isili is 12 meters high.
Is Sardinia busy in April?
That busy week sits in autumn, so April does not compete with it for rooms in Olbia.
For the sites, the practical limit is the guided tour. Su Nuraxi tours depart every 30 minutes. Arrive early in the day to avoid waiting for a later departure.
Tourist tax is charged per person and per night. It can be up to 5 euros per night. In Loiri Porto San Paolo it is €1.50 for 1 and 2 star hotels, €2.50 for 3 stars, €3.00 for 4 stars and €4.00 for 5 stars. Campsites pay €1.50, B&Bs and agriturismo €2.00, and holiday homes €2.00. The rate applies for a maximum of 10 consecutive days. Capoterra has applied its tax since February 1, 2026.
Can you swim in Sardinia in April?
That is a monthly average, so a cold day will feel cooler. March is 57°F (14°C) and May reaches 64°F (18°C). A short dip is possible, but most visitors will find it chilly.
Asinara has a marine protected area, established in 2002. On Caprera, the information point on turtles and cetaceans offers guided visits.
What to pack for Sardinia in April
April asks for layers. Afternoons are mild, nights are cool, and showers come about once a week.
- A light rain jacket for 6 to 7 rainy days in the month
- Non-slip shoes for Su Nuraxi, as the site advises
- Comfortable clothing for guided tours that last up to an hour
- Shoes or a bike-friendly outfit for the Asinara trails
- A hat or light jacket for exposed sites like Tharros
What to know before visiting Sardinia in April
Su Nuraxi can only be visited on a guided tour, and animals other than guide dogs are not admitted. Asinara is reached by boat from Porto Nuovo at Stintino or from Porto Torres, so plan the crossing before the trails.
Keep a few euros per night in mind for each traveler.
Is April a good time to visit Sardinia?
Yes, for travelers who want archaeology, parks and walking in mild weather. April gives 68°F (20°C) afternoons and open sites, and Barumini is open every day.
Compared with March, April is a few degrees warmer, with highs of 64°F (18°C) in Cagliari in March. May is warmer still, at 75°F (24°C) in Cagliari, with a 64°F (18°C) sea and about four rainy days. Shifting to May gains swimming comfort and loses the cool, easy walking of April.
If you want swimming, choose May. If you want sightseeing, April works well: the tours at Su Nuraxi depart every 30 minutes, and Asinara is free to enter. With children, the Asinara tourist train and the pedal boats at Isili are easy options.
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