Zacatlan

Planning your day in Zacatlán? In this section, you will find the most up-to-date information on weather conditions, including detailed forecasts and helpful charts.

The climate in Zacatlán, Mexico, can be described as temperate highland. Throughout the year, temperatures remain relatively stable and mild, with no sharp fluctuations between seasons. Average annual temperatures stay within a comfortable range, making the city attractive to visit at any time, though it is worth considering the specific characteristics of each period.

Zacatlán has two distinct seasons. The dry season typically runs from November to March, characterized by lower rainfall and cooler nights, although daytime temperatures remain pleasant. The rainy season begins in April or May and reaches its peak during the summer months (June–September). During this time, precipitation and the number of rainy days increase significantly; daytime temperatures remain warm, while humidity levels rise.

Zacatlán enjoys a temperate climate with noticeable temperature fluctuations throughout the year, but without extreme peaks of heat or cold. The annual range of average temperatures varies from 12.1°C in January to 18.1°C in May. Traditionally, May is the warmest month, with average highs reaching 23.4°C and average lows of 12.8°C. January is considered the coolest month, with an average minimum temperature of 7.1°C and an average maximum of 17.1°C.

The summer months, from June to August, are characterized by pleasant warmth. Average daytime temperatures during this period hover around 20.8°C – 21.8°C, while nighttime temperatures drop to 12.8°C – 13.0°C. Thus, even in the warmest months, the nights remain fresh. Winter in Zacatlán is mild, without frost. From December to February, average daytime temperatures stay within the 17.1°C – 19.5°C range, while nighttime temperatures can dip to 7.1°C – 7.9°C. This creates comfortable conditions for visiting the city even during the winter season.

One of the defining features of Zacatlán's climate is the significant diurnal temperature variation. The difference between daytime highs and nighttime lows averages about 9–10°C throughout the year, and in some more contrasting months, it can reach nearly 12°C (for example, 11.7°C in March). This means that even on warm days, evenings and nights can be quite chilly, so travelers are advised to carry warm clothing.

The city of Zacatlán experiences clear seasonality in its rainfall distribution throughout the year. There are distinct wet and dry periods, along with transitional months that significantly impact weather conditions.

The rainy season in Zacatlán typically lasts from June to October. The highest amount of precipitation occurs in September (about 10 mm), followed by August (9 mm), and June, July, and October (8 mm each). A characteristic feature of this period is the high frequency of rain. For instance, in July and August, the number of rainy days reaches 30, meaning rain is highly likely every day, even if it isn't always heavy. This near-constant presence of rain results in high humidity during this season.

The dry season runs from November to March. The driest months, with the least precipitation, are February, March, and December, when only about 2 mm falls. These months also see a decrease in the number of rainy days: about 11 in February and 12 in December. Precipitation during this period is generally very light and brief. January and November are also characterized by low rainfall (3 mm) but with a slightly higher number of rainy days (14–15 days, respectively). April and May serve as a transition period: while rainfall remains low (about 4 mm), the number of rainy days increases noticeably (to 20–21 days), heralding the arrival of the rainy season in June.

When planning a trip to Zacatlán, it is important to consider its temperate climate with noticeable temperature swings throughout the day and distinct seasons. The key principle for packing should be layering. It can be quite warm during the day, especially from April to May, when average temperatures reach 17–18°C and highs can hit 22–23°C. However, in the mornings and evenings, as well as during cooler months like January and December (average temperature around 12°C, lows down to 7°C), you will need warm clothing. Don't forget comfortable shoes for walking around the city, as well as sunscreen, a hat, and sunglasses, as the Mexican sun can be strong even in cool weather.

There are two main seasons in Zacatlán. The drier period lasts roughly from November to March, when rainfall is minimal (2–3 mm). During this time, light sweaters, t-shirts, and trousers are ideal for daytime walks, with a heavier sweater or jacket for chilly mornings and evenings. Despite the low rainfall, the number of "wet days" even in dry months can reach 11–15, so a light waterproof windbreaker or a small umbrella may come in handy—especially towards April and May, when the number of rainy days rises to 20–21, signaling the change of season.

The rainy season in Zacatlán usually falls between June and October. During these months, precipitation increases significantly (up to 8–10 mm), and the number of rainy days can reach 24–30, particularly in July and August. Therefore, a waterproof jacket or a reliable umbrella is a must. You should also consider clothing made of quick-drying materials and closed-toe, water-resistant footwear. Regardless of the season, the principle of layering will keep you comfortable as you adapt to Zacatlán's changeable weather.