Loreto Weather Month by Month

Loreto Mexico has received many blessings from Mother Nature, being one of them the weather. The Loreto weather is known, and chosen among other things, for its year-round mild temperatures. The dry, partially cloudy weather in Loreto is almost year-long, making the climate in Loreto very predictable, easy to pack for, and amazing to enjoy any month of the year. Read along and you will find great information on the weather and water temperature in Loreto, as well as great tips for navigating Loreto weather by month so you can plan accordingly.

What Is the General Weather Like in Loreto, Baja California Sur, Throughout the Year?

The weather in Loreto has two very definite seasons, a hot season from June to October, and the cool season from December to March. During the hot season the average temperature in Loreto is 91°F, while the average temperature in Loreto for its cool season is about 77°F. The hottest month in the year in Loreto is August with an average temperature of 83°F to 95°F; while the coldest month in Loreto is January, with average temperatures oscillating between 58°F and 73°F. 

When Is the Best Time to Visit Loreto?

The best time of the year to visit Loreto is the fall due to its great weather. The Loreto weather in October is splendid as the temperature in Loreto during October starts to decrease to the lower 80s while the water temperature in the Sea of Cortez continues to be warm. Nonetheless the weather in Loreto from mid-May to the end of June is also awesome with temperatures climbing to the higher 80s, creating the perfect setting to practice great water sports in Loreto. 

During Loreto’s hotter and cooler months there are also many activities to embark upon, which is why Loreto Mexico is a great place to visit all year long. 

What Are the Average Monthly Temperatures in Loreto?

•January-March: Highs 73-78°F, Lows 58 61°F - Mild and sunny, ideal for outdoor activities.

•April-June: Highs 82-92°F, Lows 66-77°F - Warm and dry, great for beach days.

•July-September: Highs 93-95°F, Lows 82-83°F - Hottest months with high humidity.

•October-December: Highs 74-88°F, Lows 60-74°F - Pleasant temperatures, perfect for travel.

Weather in Loreto: January to March

The weather in Loreto during the month of January is usually the coolest of the year, with its average high about 73-76°F and low about 55-58°F. The Loreto weather in February has an average high of 78°F and low of 59°F, while the Loreto climate in March starts getting warmer, with an average high of 82°F. During these winter months, Loreto Mexico is a chosen destination by whales! If you’re traveling to Loreto between January and early March, you cannot miss signing up for a whale watching tour or a boat trip out to the Loreto islands, where you may have dolphins and whales splashing and playing in the backdrop. 

Weather in Loreto: April to June

The clearer skies in Loreto take place from April until early July, a great time of the year to travel to Loreto if your plan is to sunbathe as much as possible. The Loreto weather in April has an average high of 84°F and low of 60°F, an average temperature of 89°F/65°F respectively for the weather in May in Loreto and an average of 94°F and 73°F for the weather in Loreto in June, which is the beginning of the summer.

The climate in Loreto from April to June brings about a great season to engage in the many outdoor activities that Loreto has to offer. The water temperature in Loreto starts increasing by mid-April, with an average water temperature in April in Loreto of 69°F, an average water temperature in May in Loreto of 73°F, and an average water temperature in June in Loreto of 76°F, allowing for most water sports, like snorkeling, diving and kayaking to take place without the mandatory wetsuit suggestion of cooler months. Other activities in-land such as nature walks and hiking tours on the Loreto Islands, are also pleasing during this time of the year when the climate in Loreto is still milder than the warmer months of summer.

Average Water Temperature in Loreto

When Is the Hottest Time of Year in Loreto?

Weather in Loreto: July to September

The summer months are the hottest time of year in Loreto, with average highs reaching 97°F and lows in the high 70s. Water temperatures also peak, averaging above 81°F, making this the best season for swimming, snorkeling, and other water sports. September marks the warmest sea temperatures at around 84°F.

When Is the Rainy Season in Loreto?

Although Loreto’s climate is generally dry, the rainy season occurs from July through September, with September seeing the most precipitation—averaging 4 days of rain with over 0.4 inches. This wetter period brings increased humidity, so it’s important to stay hydrated during outdoor activities.

Despite the heat and occasional rain, summer in Loreto is also prime time for fishing and marine adventures, making it a great season for travelers who enjoy both warm waters and vibrant sea life.

Weather in Loreto: October to December

October to December is a dream season in Loreto, when the temperatures go down and the Loreto climate is dry and sunny most of the time. The climate in Loreto in October has been described by many Loreto visitors as the most ideal climate in Loreto, with average temperatures in the mid-70s and mid-80s, while the ocean water temperature is still warm for most water sports and activities.

The weather in Loreto in December starts to cool down to an average low of 60°F, yet that does not mean the fun has to stop. Most hotel pools are heated and there are great activities off water too, such as paying a visit to local landmarks like the Our Lady of Loreto Mission and the Museo de las Misiones de Baja California, dining out at one of the many top restaurants in Loreto, watching the sunrise or sunset at the many magical spots, and much more. The cooler months of the year in Loreto receive the visit of a vast array of whales that find refuge in the waters of the Baja. December is the beginning of the whale season in Loreto, an opportunity you won’t want to miss. 

Average Water Temperature in Loreto

The water temperature in Loreto, Baja California Sur, follows a smooth seasonal curve, with the coolest temperatures in winter and the warmest during late summer and early fall. The coolest time of year is in early February, with average water temperatures around 66°F, while the warmest period peaks in early September at approximately 85°F. From April through October, water temperatures steadily rise, making it ideal for swimming, snorkeling, and other water sports. Even in the cooler months, from December to March, water temperatures typically remain between 66°F and 70°F, allowing for comfortable activities—especially with a light wetsuit. Whether you're visiting during the cool or warm season, the Sea of Cortez offers inviting conditions for marine adventures almost year-round.

From beginning to end, Loreto is a great destination for any of the 365 days of the year.