Question 1

When is the rainy season in Mexico City and how much rain falls?

Accepted Answer

Mexico City's rainy season runs from June through October, delivering the vast majority of the city's annual precipitation during these five months. In 2024, this period brought 814.9mm (32.1 inches) of rainfall—accounting for nearly 93% of the year's total precipitation.

The rainfall intensity peaks in late summer. September 2024 was the wettest month with 209.0mm (8.2 inches), followed closely by July at 195.3mm (7.7 inches) and August at 170.0mm (6.7 inches). June marks the season's arrival with 149.8mm (5.9 inches), while October sees a gradual decline to 90.8mm (3.6 inches) as the dry season approaches.

In contrast, Mexico City's dry season from November through May received only 63.5mm (2.5 inches) in 2024. March was completely dry with no measurable precipitation, making it the driest month of the year.

During the rainy season, temperatures in Mexico City remain mild, averaging around 17.1°C (62.8°F). Afternoon thunderstorms are common, typically occurring in the late afternoon or evening hours, leaving mornings and early afternoons clear for outdoor activities. The total annual precipitation for 2024 reached 878.4mm (34.6 inches), which is typical for this high-altitude capital situated at 2,248 meters above sea level.

Question 2

What are the warmest and coldest months in Mexico City?

Accepted Answer

Mexico City experiences its warmest weather in May and its coldest temperatures in January, based on 2024 weather data.

May 2024 was the warmest month in Mexico City, with an average temperature of 22.7°C (72.9°F). During this month, daytime highs reached up to 34.6°C (94.3°F), making it the hottest temperature recorded anywhere in the city throughout the year. Nighttime lows remained mild at around 11.1°C (52.0°F).

January 2024 was the coldest month, with an average temperature of just 14.5°C (58.1°F). Despite the cooler conditions, afternoon temperatures still climbed to 28.1°C (82.6°F) on warmer days. However, early mornings could be quite cold, with temperatures dropping to 2.8°C (37.0°F). The absolute coldest temperature in 2024 was recorded in February at 2.5°C (36.5°F).

The temperature range in Mexico City spans about 32°C (58°F) throughout the year, from the coldest winter mornings to the hottest spring afternoons. The city's high elevation of 2,248 meters contributes to these cool nights even during warmer months. For visitors, the spring months from March to May offer the warmest and most pleasant weather, with an average temperature of 20.6°C (69.1°F), ideal for exploring this vibrant capital before the rainy season begins.

Question 3

Which months have the most sunshine in Mexico City?

Accepted Answer

Mexico City enjoys its sunniest weather during the spring months, with May and March recording the highest sunshine hours in 2024. May topped the list with 333.6 hours of sunshine, averaging 10.8 hours of daily sun, while March followed closely with 329.0 hours and 10.6 hours per day.

The city recorded a total of 3,167.5 hours of sunshine throughout 2024, translating to an average of 8.7 hours of sun per day. The dry season months from November through May delivered significantly more sunshine than the rainy season, with a monthly average of 294.1 hours compared to just 221.8 hours during June through October.

Spring (March through May) proved to be the optimal period for sun-seekers in Mexico City, accumulating 956.0 hours of sunshine across these three months. November also stands out as an excellent choice with 294.6 hours of sunshine and 9.8 hours of daily sun on average.

The least sunny months in Mexico City were September and October during the tail end of the rainy season, with only 188.2 and 187.0 hours respectively. Cloud cover from afternoon thunderstorms significantly reduces sunshine during these months.

For visitors planning outdoor activities or sightseeing in Mexico City, the spring months of March through May offer the best combination of abundant sunshine and comfortable temperatures, making them ideal for exploring the city's parks, historical sites, and outdoor markets.

Question 4

What is the average humidity in Mexico City throughout the year?

Accepted Answer

Mexico City has a moderate annual average humidity of 54.9%, with significant seasonal variation between the dry and wet seasons based on 2024 weather data.

The city's humidity levels fluctuate dramatically throughout the year, ranging from a low of 30.3% in March to a peak of 78.2% in September. This 47.9 percentage point difference reflects the distinct seasonal patterns that define Mexico City's climate at its elevation of 2,248 meters (7,375 feet).

During the dry season from November through May, Mexico City experiences notably drier conditions with an average humidity of 43.0%. Spring months (March through May) are the driest period, averaging just 36.1% humidity. This makes spring an excellent time for outdoor activities and sightseeing in the city.

The wet season from June through October brings much higher humidity levels, averaging 71.7%. Peak humidity occurs during the rainy months of July through September, when levels consistently exceed 76%. September 2024 recorded the highest monthly humidity at 78.2%, coinciding with the heaviest rainfall of the year.

For visitors planning a trip to Mexico City, the humidity conditions offer distinct experiences:

- **March through May:** Low humidity (30-40%) ideal for comfortable outdoor exploration
- **June through October:** Higher humidity (55-78%) with afternoon rain showers
- **November through February:** Moderate humidity (38-53%) with mild, pleasant weather

These 2024 humidity patterns demonstrate that Mexico City's high-altitude location moderates humidity levels compared to coastal Mexican cities, contributing to the capital's famously temperate climate year-round.

Question 5

What are the windiest months in Mexico City?

Accepted Answer

Mexico City experiences its windiest conditions during spring, with March and April being the breeziest months of the year. Based on 2024 weather data, March recorded the highest average wind speed at 7.4 km/h (4.6 mph), followed closely by April at 7.3 km/h (4.5 mph).

The spring season from March to May 2024 averaged wind speeds of 7.0 km/h (4.3 mph), making it noticeably windier than other times of year. June also saw elevated winds at 7.2 km/h (4.5 mph), extending the breezy period into early summer. In contrast, December was the calmest month in Mexico City with average winds of just 3.8 km/h (2.4 mph).

The annual average wind speed in Mexico City during 2024 was 5.8 km/h (3.6 mph), which is relatively gentle compared to many other major cities. The difference between the windiest and calmest months was 3.6 km/h (2.2 mph), showing moderate seasonal variation.

These wind patterns in Mexico City are influenced by the city's high elevation of 2,248 meters and its position in a valley surrounded by mountains. The spring winds coincide with the dry season, making March and April ideal for outdoor activities like kite flying or enjoying the city's many parks. Visitors planning outdoor events should note that late autumn and winter months offer the calmest conditions.

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FAQ

When is the rainy season in Mexico City and how much rain falls?

What are the warmest and coldest months in Mexico City?

Which months have the most sunshine in Mexico City?

What is the average humidity in Mexico City throughout the year?

What are the windiest months in Mexico City?