Flores weather day to day: where to check the forecast, how the warnings work, and how to plan each day

On Flores the weather decides the order of your days more than any list of sights does. The lakes on the central plateau can sit in cloud while Santa Cruz is dry, a westerly swell can close the bathing front at Fajã Grande while the east coast is calm, and the boat to Corvo sails or does not on the morning's sea. This guide covers where to read the forecast, what the warnings mean for Flores, and how to choose each evening what to do the next day.

The averages month by month are in the season guides: winter, spring and autumn and summer.

The official source is IPMA, the Portuguese weather and sea institute, at ipma.pt. It publishes a forecast for Santa Cruz das Flores, the only place on the island it lists. In October 2026 it ran five days ahead, with the lowest and highest temperature, the chance of rain, the wind direction and a wind-strength class for each day. IPMA also forecasts the sea state for a point off Santa Cruz.

Santa Cruz is on the east coast near sea level, so the forecast says little about the plateau, where the lakes and the high trails are. And a five-day outlook for an island in the middle of the Atlantic changes from one day to the next, so read it again every evening rather than planning the whole stay from the first look.

IPMA issues warnings for the Azores by island group, and Flores shares its area with Corvo in the western group. A warning has a type and a colour. The types are rough sea, fog, heat, cold, rain, snow, thunderstorms and wind. In IPMA's own definitions:

• Green: no hazardous weather foreseen.
• Yellow: weather-sensitive activities may be affected, so keep an eye on how things develop.
• Orange: moderate to high risk. Stay informed and follow the civil protection authorities.
• Red: high risk, with the same advice.

The warning list looks about three days ahead. The thresholds are not the same everywhere in Portugal, so a wind that brings a yellow warning in one area can bring an orange one in another. Go by the colour.

For Flores, the sea warning is the one that matters most. In February 2026 IPMA put Flores and Corvo under a red warning for rough sea overnight, with westerly waves of around 10 metres and single waves of up to 19 metres. On a day like that the coastal paths, the harbour walls and the bathing places are not somewhere to be. The regional civil protection service also posts weather warnings and information notes at prociv.azores.gov.pt.

Flores is small enough that changing coast is a short drive, and that is the most useful way to use a forecast. Look at the wind direction and the sea forecast, then pick the side of the island in the lee.

• West coast (Fajã Grande, Fajãzinha): the bathing front at Fajã Grande is the island's second monitored bathing water, with a lifeguard in July and August only, and the westerly swell decides whether you can swim there at all. On a calm morning it is one of the best swims on the island; on a rough one you will not get in.
• East coast (Santa Cruz): the town pools at Altio face east and have a lifeguard from mid-June to mid-September. The water is held by the rock rather than by walls, so it follows the state of the sea outside. On a westerly day this side is usually the quieter one.
• South coast (Lajes): the bay at Lajes is sheltered from the northerly weather that shuts much of the rest of the coast, which is why the island's main harbour is there. Praia das Lajes has no lifeguard and nothing built on it.
• North-east (Baía da Alagoa): fully exposed, no lifeguard, cobbles underfoot. Go only on a calm day.

The crater lakes and the start of the PR03FLO trail are on the high central plateau. The Miradouro das Lagoas, where you look down on Lagoa Negra and Lagoa Comprida, is often in cloud, and sometimes waiting a few minutes is enough for it to clear. The official trail page for PR03FLO, 7 km and graded hard, warns of rain and fog at that altitude and tells walkers to check the forecast first.

A practical rule: if you can see the top of the island from the coast in the morning, drive up first and do the coast later. If the plateau is under cloud, start with the coast and look again after lunch. The Santa Cruz forecast does not cover the plateau, so look up before you set off.

The evening before, also check these.

• Trails: the alerts page on trails.visitazores.com lists trails that are temporarily closed and those open but under maintenance. In October 2026 it listed PR01FLO, Ponta Delgada to Fajã Grande, as temporarily closed. The hiking guide has the rest.
• The boat to Corvo: Atlânticoline posts changes on its releases page, often the day before or the same day. In September 2026 it changed the afternoon Pink Line (Flores-Corvo) sailing on the 24th and cancelled the trips of the 29th for the weather. Plan a Corvo day trip early in your stay so a cancelled day can move.
• Flights: the inter-island flights are run by SATA Air Açores, and the group's site has a flight status page. Between May 2025 and April 2026 SATA Air Açores cancelled 1,351 flights, 57% of them because of the weather, which is why getting to Flores recommends a buffer day before any onward connection.

• Read the IPMA forecast for Santa Cruz das Flores and the warnings for the western group.
• Note the wind direction and the sea state, and pick the coast in the lee for any swimming.
• Check the trail alerts if you plan to walk, and the Atlânticoline releases if Corvo is tomorrow.
• Keep a short plan B on the other side of the island: a viewpoint, a museum in Santa Cruz or a café in Lajes.
• In the morning, look at the plateau before you decide which way to drive.

Where can I get an official forecast for Flores? On ipma.pt, the Portuguese weather institute, which publishes a five-day forecast for Santa Cruz das Flores and warnings for the western group, Flores and Corvo.

What does a yellow warning mean on Flores? That weather-sensitive activities may be affected. Orange means moderate to high risk and red high risk; with either, follow the civil protection advice and keep off exposed coast.

Does the boat to Corvo run in bad weather? Not always. Atlânticoline cancels or changes sailings when the sea is rough and posts the change on its releases page, often the day before.

Why is it cloudy at the lakes when Santa Cruz is sunny? The lakes sit on the high central plateau, which catches cloud and fog that the coast does not. Wait a few minutes at the viewpoint, or go back later in the day.