If you ask expats who live along Lake Chapala why they decided to live there, more often than not they say it is the beautiful year-round weather. The combination of a tropical latitude, high elevation and the moderating influence of a 50-mile long body of water gives the towns along the northern shore of Lake Chapala one of the best climates in the world.
The lake and surrounding mountains ensure warm daytime temperatures throughout the year, averaging a mild 74 F. And, because Lake Chapala sits at 5,000 feet above sea level, humidity is not a problem.
Like most of Mexico, the rainy season lasts from June into early October and drops a little over 30 inches of rain during the five-month period. July is the rainiest month of the year, about 9 inches. Once the rain starts the temperature cools as much as 10 degrees and the mountains turn a lush green again. From November through May, just over 2 inches of rain falls.
Spring is the warmest time of the year along Lake Chapala. Daytime temperatures begin warming in March and reach an average high of 90 by May, but relatively low humidity keeps the climate comfortable. The rest of the year the average high ranges from the mid-70s to the low 80s and lows seldom drop below 45 F, ensuring that living along the lake does not require home air conditioning or heating, which is a major plus if you are watching your budget.
To cap this perfect climate, the sun shines well over 300 days each year.
Major weather events are rare along the lake, but it can receive generous amounts of rain when remnants of hurricanes or severe tropical storms from either coast visit the region. And like most of Mexico, the area can experience earthquakes from time to time