Baja California Sur, where it is

Index


Introduction



The state of Baja California Sur encompasses the central and southern part of the Baja California peninsula. The climate is arid subtropical in most of the state, mild on the west coast, overlooking the Pacific ocean, where a cold current flows, and very hot in summer on the east coast, overlooking the Gulf of California (or Sea of ​​Cortez).
In winter, when cold air masses arrive from the United States, it can get cold at night, and the temperature can drop to 0 °C (32 °F) in inland areas, and on the coast, to 5 °C (41 °F) in the north, and to 8/10 °C (46/50 °F) in the extreme south, but also in these cases, during the day it generally remains mild.
From July to mid-October, there is an increase in rainfall, due to the "little monsoon" of North America, with more evident effects in the southernmost part, crossed by the Tropic of Cancer.
Within the little monsoon, from late June to October, and with a maximum in September, Baja California Sur (more than Baja California) may be affected by tropical depressions and cyclones that form in the Pacific off the southern coast of Mexico.

Center-north



In the north-central part of the state, the climate is desert or semi-desert, although some rain occurs from July to October. Winter nights can be cold, while summer is hot on the west coast, and very hot in inland areas and on the east coast.
Precipitation, around 100 mm (4 in) per year along the coasts, reaches 300 mm (12 in) in the hills of the interior.

Guerrero Negro

Here are the average temperatures in Guerrero Negro, located on the north-western coast, near the border with the state of Baja California.
Guerrero Negro - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)891113141518191916117
Max (°C)232425262627303131292623
Min (°F)464852555759646666615245
Max (°F)737577797981868888847973

In Guerrero Negro, just 80 mm (3 in) of rain fall per year, most of which in winter: we are still in the area that hardly receives rain in the summer.
Guerrero Negro - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)151550000055102580
Prec.(in)0.60.60.2000000.20.20.413.1
Days22100000111210

In Guerrero Negro, the sea never gets very warm, however it becomes warm enough for swimming in August and September. Here are the average sea temperatures.
Guerrero Negro - Sea temperature
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Temp (°C)171717181819212323222018
Temp (°F)636363646466707373726864

Dunas de la Soledad

Santa Rosalia

On the other side, the east coast is very hot in summer. Here are the average temperatures in Santa Rosalia.
Santa Rosalia - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)121214161923252625221713
Max (°C)212224283034353635322622
Min (°F)545457616673777977726355
Max (°F)707275828693959795907972

In Santa Rosalia, rainfall amounts to just 100 mm (4 in) per year, however the rainiest months are August and September, with 25 mm (1 in)per month.
Santa Rosalia - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)10500005252515510100
Prec.(in)0.40.200000.2110.60.20.43.9
Days1100001221119

In Santa Rosalia, the sea is warm enough for swimming from June to November, and becomes very warm from July to September.
Santa Rosalia - Sea temperature
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Temp (°C)181819202225282929272420
Temp (°F)646466687277828484817568

Continuing south on the eastern side (see Mulegé, Loreto, La Paz), the situation remains similar, even though the winter becomes progressively milder, and the rains in the July-October period slightly increase. In La Paz, only 170 mm (6.7 in) of rain per year still fall.

Ciudad Constitución

In the interior of the north-central part, in winter, the temperature range is significant, so it can be cold at night, while the days are pleasantly warm, and sometimes hot. In summer, the heat is very intense: the temperature often reaches 40 °C (104 °F), and in addition there is the humidity coming from the sea and the one related to the "little monsoon", which brings some rain from July to September. Here are the average temperatures in Ciudad Constitución.
Ciudad Constitución - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)8910121316202221171210
Max (°C)262829313235373836343026
Min (°F)464850545561687270635450
Max (°F)7982848890959910097938679

The rainfall in Ciudad Constitución amounts to just 140 mm (5.5 in) per year, so we are still at a desert level, however we can notice the presence of some rain from July to September. Here is the average rainfall.
Ciudad Constitución - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)155500015353051025140
Prec.(in)0.60.20.20000.61.41.20.20.415.5
Days11100013311216

The interior of the peninsula is crossed by a mountain range, the Sierra de la Giganta. In the central-northern part, the highest peaks are the volcanoes called Tres Vírgenes, north-west of Santa Rosalia, which reach 1,940 meters (6,365 ft).

South



In the southern part, in summer the sea becomes warm even on the western side. Furthermore, this area is more affected by the little monsoon. On the west coast, rainfall is still scarce, since it ranges from 200 mm (8 in) in Todos Santos to 220 mm (8.7 in) in Cabo San Lucas (on the southern tip), while on the south-east facing coast, it reaches 290 mm or 11.5 inches (see San José del Cabo).

Los Cabos

Cabo San Lucas is located at the southern tip of Baja California. Here, as in the rest of the peninsula, the climate is arid; winter is sunny, with cool nights, around 13/14 °C (55/57 °F), and pleasantly warm days, around 25/26 °C (77/79 °F). Spring is warm and sunny: daytime temperatures reach 29 °C (84 °F) already in April. Summer is hot, with highs around 32/34 °C (90/93 °F), but in the second part, from mid-July to October, owing to the little monsoon, there's some chance of showers and thunderstorms, sometimes intense, especially in September. Here are the average temperatures.
Los Cabos - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)131313151719232423211714
Max (°C)252627293032333433322926
Min (°F)555555596366737573706357
Max (°F)777981848690919391908479

Since, as we mentioned, the rains are concentrated in late summer, in this southern part of Baja California the rainfall pattern is opposite to that of the northern part. Here is the average precipitation.
Los Cabos - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)1050000155080301015220
Prec.(in)0.40.200000.623.11.20.40.68.7
Days10000013321113

The sun in Los Cabos shines all year round, but there's a certain decrease in the sunshine hours from July to September.
Los Cabos - Sunshine
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Hours788898777887

Here the sea is very warm in summer, while in winter it is a bit cool, but not impossible for swimming.
Los Cabos - Sea temperature
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Temp (°C)222121222325272929292624
Temp (°F)727070727377818484847975

Sierra de la Laguna

On the elevations of the southern part, in the Sierra de la Laguna, rainfall ranges from 400 to 650 mm (15 to 25 in) per year. The rains in the period July-October are high enough as to allow the growth of a more organized vegetation, an arid scrub at low-altitude (xeric scrub), a dry forest from 250 to 800 meters (800 to 2,600 feet), and a coniferous forest at higher altitudes.
The highest peak (the so-called Sierra de la Laguna High Point) is at 2,090 meters (6,856 ft). Here are the average temperatures at the summit.
Sierra de la Laguna - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)2236811131212953
Max (°C)161719212324242322211917
Min (°F)363637434652555454484137
Max (°F)616366707375757372706663

Precipitation amounts to 650 mm (25.5 in) per year, with a maximum of 180 mm (7 in) in August.
Sierra de la Laguna - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)301055010110180165702040650
Prec.(in)1.20.40.20.200.44.37.16.52.80.81.625.6
Days211001812952344



Sierra de la Laguna

Agua Caliente

In inland areas, at low altitudes, temperatures in summer are very high. In Agua Caliente (or El Chorro), which, as its name indicates, is located near hot springs, the average maximum in July is 40 °C (104 °F). Here are the average temperatures.
Agua Caliente - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)891113172123222118139
Max (°C)283033353840393837363228
Min (°F)464852556370737270645548
Max (°F)8286919510010410210099979082

Precipitation amounts to 530 mm (21 in) per year, with a maximum of 220 mm (8.7 in) in September.
Agua Caliente - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)205000070140220352015530
Prec.(in)0.80.200002.85.58.71.40.80.620.9
Days21000047721124

when to go



You can visit the central-northern part of Baja California Sur from November to April, and the southern part from mid-November to March, since it is the least hot period. During the day you can enjoy the sun, while in the evening you will need a sweater and a jacket (light for the southern part).
For a beach holiday you may prefer May (when the sea is still a little cool) and the first half of November (when the sea is warmer).
The mountain peaks can be visited in April and May, when it is not as cold as in winter.



See also the climate of Baja California.