The Sea of Cortez, also known as the Gulf of California, has a tropical desert climate with hot, dry summers and mild, wet winters. Here's a more detailed breakdown:

Temperature:

* Summer (June-September): Extremely hot, with temperatures reaching up to 100°F (38°C) during the day. Nighttime temperatures can still be warm.

* Winter (December-February): Mild and pleasant, with average temperatures around 70°F (21°C) during the day. Nighttime temperatures can be cool.

Rainfall:

* Summer: Very dry, with minimal rainfall.

* Winter: Receives most of its rainfall, but it's still considered a desert climate.

Other factors:

* High sunshine hours: The Sea of Cortez receives a high amount of sunshine year-round.

* Strong winds: Winds can be strong, especially during the summer months.

* Ocean currents: The California Current flows south along the western coast of the Baja Peninsula, bringing cold water and occasional fog.

Regional variations:

* Northern Sea of Cortez: Slightly cooler temperatures than the southern regions.

* Southern Sea of Cortez: Warmer temperatures and drier conditions.

Best time to visit:

* Spring (March-May): Pleasant temperatures, less humidity, and calmer waters.

* Fall (September-November): Still warm, but less humid than summer.

Overall:

The Sea of Cortez offers a diverse range of climates, depending on the specific location and time of year. Whether you prefer warm sunshine or mild winter days, there's a time and place in the Sea of Cortez that will suit your preferences.