Climate and monthly weather forecast
Mexicali, Mexico


The climate of Mexicali

The subtropical desert climate, also known as the BWh climate classification according to the Köppen climate classification, firmly grasps the city of Mexicali, Mexico. The geographical location and the climate classification place Mexicali in a zone where the weather is characterized by very high temperatures during the summer and mild winter temperatures. Rainfall leaves a limited footprint on the weather map of Mexicali.

Throughout the year, Mexicali experiences a range in temperature that varies from 10.2°C to 41.8°C. The highest temperatures occur in the summer months, from June to August with the peak in July at 41.8°C. Conversely, the milder temperatures make their appearance in winter, between December and February, with the lowest temperature in January at 10.2°C.

Humidity is relatively low throughout the year, fluctuating from 20% to 38%. The lowest humidity manifests in June, whereas the highest forms a wall of dampness in December and January. Rainfall, albeit minimal, happens throughout the year. The highest amount of rain falls between July and September, amassing 15mm in July and 10mm in both August and September. Conversely, scant rainfall presents from April to June, holding steady at 1mm each month.

Daylight and sunshine remain fair constants in Mexicali. From October to March, daylight hours vary from 10 to 11.4 hours, and April to September realise longer days varying from 12 to 14.3 hours. Sunshine hours also don't differ greatly, ranging from 7.1 hours to 12.2 hours. The UV index shows a predictable pattern; the lower index of 4 and 5 occurs from November to February, an index of 6 comes around in March, April, and October while the higher index from 7 to 9 hits from May to September.

The wind speed fluctuates just slightly from 8.6km/h to 11.5km/h. A high pressure period ranges from December to February while low pressure is noticeable from May to September.

The best time to visit Mexicali

With regards to pleasant weather and optimal conditions for outdoor entertainment, the sweet spot for visiting Mexicali is from November to April. During this period, weather conditions are mild and more temperate, with average temperatures ranging from 19.7°C to 30.5°C. The sunshine remains abundant, providing over 7.5 hours of direct sunlight daily, and the relative humidity is bearable, never exceeding a 38% level.

The worst time to visit Mexicali

Mexicali’s subtropical desert climate can produce extreme heat, particularly during the months of June, July, and August. Travelers looking to evade oppressive heat and high humidity, which can exceed 30%, should stay clear during these months. Temperatures commonly soar beyond 37°C, making outdoor activities unbearable.

Spring weather in Mexicali

Spring in Mexicali is marked by gradually increasing temperatures and a steadily decreasing humidity level. From March to May, temperatures escalate from 26.7°C to 34.1°C. Meanwhile, the averages of daylight and sunshine increase from 12 hours and 9.1 hours to 13.8 hours and 12 hours, respectively. Humidity drops from 30% in March to 24% in May - the perfect conditions for outdoor activities to be thoroughly enjoyable.

Summer weather in Mexicali

Summer, which stretches from June to August, is the hottest season in Mexicali. During this period, temperatures often surge to their max, ranging from 37.7°C to a boilerplate 41.8°C. The heat is accompanied by the lowest humidity levels of the year, ranging from 20% to 25%. The daylight hours are the longest of the year with up to 14.3 hours of light per day, and the UV index touches its peak at 9.

Autumn weather in Mexicali

Autumn months in Mexicali see a substantial decrease in temperature and a slight increase in humidity. From September to November, temperatures slowly drop from 37.7°C to a more bearable 25°C. Autumn also ushers in the highest rainfalls of the year, with September and October receiving an average of 10mm and 6mm of rain, respectively. Despite this, the sunshine hours remain high, ranging from 10.2 hours in September to 7.5 hours in November.

Winter weather in Mexicali

Winter in Mexicali, extending from December to February, provides relief from the extreme heat. The temperature drops to more comfortable levels, ranging from 19.7°C to 20.6°C. Humidity levels reach their peak, fluctuating between 37% and 38%, making the air feel chillier than the thermometer indicates. Despite being winter, the city experiences about 10 hours of daylight and over 7 hours of sunshine per day, ensuring ample time for exploring and sightseeing.

Weather in January

January’s weather in Mexicali, Mexico, marks the beginning of the year with relatively chillier temperatures when compared to following months. The low humidity of 37% contributes to the dry season appeal of the city. Evenings tend to be cooler, requiring light jackets or sweaters. Weather in January »

Weather in February

Noticeably transitioning into warmer days, February's weather in Mexicali rises above January’s norm. The end of the North American winter sees Mexicali replete with sunny days and clear skies, proving a respite from colder North American regions. Weather in February »

Weather in March

March in Mexicali witnesses an abrupt escalation in temperature, signifying a clear transition into the warmer season. With clear skies and an increase in daylight hours, tourists flock to the region to indulge in outdoor activities. Weather in March »

Weather in April

The weather in April in Mexicali ushers in a clear departure from the chills of winter transitioning into the city's infamous heat with increasing temperatures. It also sees an expansion in daylight hours, leading to a greater number of sunshine days. Weather in April »

Weather in May

May weather in Mexicali takes a swerve towards intense heat, which becomes a defining characteristic of Mexicali's summer. As a result, the streets of Mexicali remain quieter with lesser tourist activities during the peak day hours. Weather in May »

Weather in June

June's weather in Mexicali, Mexico is consistently hot, with the dry desert climate being most apparent during this month. The relative humidity dips to its annual lowest at 20%, further accentuating the city's arid ambience. Despite lengthy daylight hours, the intense heat restricts outdoor activities to early mornings and late evenings. Weather in June »

Weather in July

Mexicali's weather in July is characterised by its peak summer temperatures, discouraging the faint-hearted from outdoor tourist activities. Despite the high temperatures, the UV index refrains from exceeding the previous months' measure of 9. Weather in July »

Weather in August

August brings in minor relief from the searing Mexicali weather, initiating a downward trend in temperatures. This change doesn't dramatically alter the overall hot and dry climate, but the slight decrease is noticeable. Wind gusts drop slightly but still maintain speeds of up to 13.2km/h, functioning to alleviate the heat. Weather in August »

Weather in September

September continues the transition to cooler weather in Mexicali. Despite the cooling trend, Mexicali maintains its reputation for extensive sunshine days and low relative humidity. A slight decrease in wind speed to 9.7km/h is observed, along with a decline in the UV index to 8. Weather in September »

Weather in October

Weather in Mexicali throughout October tends to blend warmth and coolness, offering hospitable climate conditions for visitors. The rainfall, despite a further decrease from the previous month to 6mm, persists to provide occasional breaks from the region’s standard dryness. Weather in October »

Weather in November

As November approaches, Mexicali’s weather begins to prepare for the winter chill. It experiences a further drop in temperature, and the reduction in daylight hours brings early dusks. The UV index drops further to 5, providing relief from the harsh summer sun. Weather in November »

Weather in December

December in Mexicali ushers in the cool winter season, with temperatures taking a considerable dip when compared to the blistering summer months. The overall pleasant conditions, coupled with the year's lowest UV index of 4, make this month ideal for visitors to explore the city. Weather in December »


How much does it rain in Mexicali?

In Mexicali, Mexico, during the entire year, the rain falls for 31.8 days and collects up to 80mm of precipitation.

When is Daylight Saving Time (DST) in Mexicali?

On Sunday, 12. March 2023, at 2:00 am, Daylight Saving Time starts in Mexicali, Mexico, and the time zone changes from PST to PDT. Daylight Saving Time ends on Sunday, 05. November 2023, at 2:00 am, and the time zone reverts from PDT to PST.

What is the driest month in Mexicali?

May and June are months with the least rain in Mexicali, Mexico, when the rain falls for 1.1 days and typically aggregates up to 1mm of rain.

What is the least humid month in Mexicali?

With an average relative humidity of 20%, June is the least humid month in Mexicali, Mexico.

When are the longest days in Mexicali?

June has the longest days of the year in Mexicali, Mexico, with an average of 14h and 18min of daylight.

What month has the most sunshine in Mexicali?

With an average of 12.2h of sunshine, June has the most sunshine of the year.

When is the highest UV index in Mexicali?

The months with the highest UV index are June through August, with an average maximum UV index of 9.

What is the warmest month in Mexicali?

July proves to be the warmest month in Mexicali, Mexico, recording an average peak temperature of 41.8°C and a minimum temperature of 29.4°C.

What is the wettest month in Mexicali?

The month with the most rainfall in Mexicali, Mexico, is July, when the rain falls for 6.3 days and typically aggregates up to 15mm of precipitation.

What time of the year is the coldest in Mexicali?

During the coldest month in Mexicali, December, temperatures average a high of 19.7°C and a low of 10.3°C.

What is the most humid month in Mexicali?

The most humid month in Mexicali, Mexico, is December, with an average relative humidity of 38%.

What is the month with the shortest days in Mexicali?

The month with the shortest days is December, with an average of 10h and 0min of daylight.

What is the month with the least sunshine in Mexicali?

The month with the least sunshine is December, with an average of 7.1h of sunshine.

What is the month with the lowest UV index in Mexicali?

December is the month with the lowest UV index in Mexicali, Mexico, with an average maximum UV index of 4.

Average temperature
Mexicali, Mexico

Average temperature - Mexicali, Mexico

The warmest month (with the highest average high temperature) is July (41.8°C).
The month with the lowest average high temperature is December (19.7°C).

The month with the highest average low temperature is August (30.2°C).
The coldest month (with the lowest average low temperature) is January (10.2°C).


Average pressure
Mexicali, Mexico

Average pressure - Mexicali, Mexico

The month with the highest atmospheric pressure is January (1018.4mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).


Average wind speed
Mexicali, Mexico

Average wind speed - Mexicali, Mexico

The windiest month (with the highest average wind speed) is April (11.5km/h).
The calmest month (with the lowest average wind speed) is August (8.6km/h).


Average rainfall
Mexicali, Mexico

Average rainfall - Mexicali, Mexico

The wettest month (with the highest rainfall) is July (15mm).
The driest months (with the least rainfall) are May and June (1mm).


Average rainfall days
Mexicali, Mexico

Average rainfall days - Mexicali, Mexico

The month with the highest number of rainy days is July (6.3 days).
The months with the least rainy days are May and June (1.1 days).


Average daylight / Average sunshine
Mexicali, Mexico

Average daylight / Average sunshine - Mexicali, Mexico

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).


Average sunshine days
Mexicali, Mexico

Average sunshine days - Mexicali, Mexico

The month with the most sunshine days is May (29.6 days).
The month with the least sunshine days is July (21.3 days).


Average visibility
Mexicali, Mexico

Average visibility - Mexicali, Mexico

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).


Mexicali, Mexico

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