There are outstanding locations for snorkeling or diving. Some are even close to the shore and not a boat necessary. Share special places you know and describe what to expect.
Best time is late summer, September, when the Italian holidays in August are over.
The great white sharks arrive sometime in July and usually depart by late November. Under normal circumstances you’ll never fail to see them during that time. It’s because of the really high shark concentration at Guadalupe Island. It is not uncommon to have more than one shark around the cages on some days. However, there are slight variations to what you can see:
The first male and smaller female sharks show up in July. That’s why most tour operators start their trips by the end of July. The last trips are usually offered mid-November, end of November. However between July and mid-September you will ‘only’ see the male sharks or smaller female ones. By the end of September the first huge mature female sharks (18 ft) start showing up. By mid-October the numbers of sharks go down slightly. However, the chance of encountering those spectacular female sharks is at its highest during October/November.
Weather and Water Temperature
Very warm during the day and cooler at night. Summer clothing should be fine. Bring a sweater, pants and a windbreaker/rain jacket. From July to November the average daytime temperature ranges between 73 and 78° F (23-26° C). It’s slightly cooler in November. The ocean is at its calmest during these months. But still, keep in mind that the weather can get rougher on the way forth and back. The water temperature ranges between 72° F (22° C) in August/September and 68° F (20° C) in October/November. A 5mm – 7mm wetsuit with a hood is recommended.
Crowds are not an issue, as only few operators are heading to this island. But still, book well in advance if possible. The shark diving trips to Guadalupe Island became more popular in the recent years.
The costa brava is nice to visit outsite of the season.
In spring you can see a lot of nudibranches.
Avoid cruise ship days. It's completely crowded. If you can't avoid go early not later than 9 a.m. or in the afternoon. Sea is calmer in the morning. Of course best with sunlight. April and May higher chance for sea turtles.
The dry season last from December until April/May. Cruise ship season last until late March. Rainy season from June until November with the possibilities of hurricanes and flash floods. The driest month is March and the wettest is August.
It is less busy in the morning and afternoon. We spotted more fish in the morning. Avoid midday too many snorkelers arriving by boat.
Climate and Crowds
Best months are during the dry season from December until May. Driest months are February to May. Day temperature always around 30 C°/ 86°F. Most sunshine in March. The rainy season lasts from June to November with the possibilities of hurricanes and flash floods. Wettest month is September. Minimum water temperature is 27 C°/ 81°F It's more crowded during the dry season, expect higher rates and crowds from mid-December to March. April and May rates decrease and "fewer" tourists except for Easter.