Baja California Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Baja California, Mexico in September.

Are you planning a trip a to Baja California, Mexico in September and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Baja California in September

Baja California, Mexico is a region in Mexico. Baja California, Mexico offers a broad spectrum of weather patterns. In September, one might encounter temperatures that range from warm to very hot, and precipitation levels ranging from almost none to low.

Temperatures

During the day temperatures vary from warm in Rosarito at 23°C (73°F) to very hot in Mexicali at 39°C (102°F). At night it cools down to 23°C (73°F) in Mexicali and 19°C (66°F) in Rosarito. On average, September is the warmest month of the year in Baja California, Mexico. So be prepared and pack summer clothes.

To learn more about the conditions in specific areas of Baja California, Mexico, check out the map below.

Precipitation

In September, precipitation varies across different areas. From almost no rainfall in Mexicali with an average of 3.6 mm (0.1 in) to low rainfall in San Felipe with 14 mm (0.6 in).

Average sunshine

Sunshine is generally plentiful throughout many areas. Tijuana enjoys about 272 hours of sunlight, ideal for those seeking sunny weather.

Explore Baja California by month

Pick a month to see the average temperature, rainfall and sunshine in Baja California — and find the best time to visit. (based on Tijuana)

Best Places to Visit in Baja California in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Baja California.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Baja California

What is the weather like in September for some of the most popular destinations in Baja California, Mexico?

Temperature range in Baja California (September)

Precipitation variation in Baja California (September)

Tijuana

In September Tijuana generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 17°C (63°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
27°C (81°F)
27°C (81°F)
25°C (77°F)
Min temperature
18°C (64°F)
17°C (63°F)
14°C (57°F)
Monthly sun hours
281 hours
272 hours
249 hours
Monthly rainfall
0.6 mm (0.02 in)
4.3 mm (0.2 in)
12 mm (0.5 in)
Monthly rainy days
a single day
a single day
4 days
Weather conditions

Ensenada

In September Ensenada generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 18°C (64°F) and low monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
27°C (81°F)
26°C (79°F)
24°C (75°F)
Min temperature
19°C (66°F)
18°C (64°F)
15°C (59°F)
Monthly rainfall
2.7 mm (0.1 in)
5.4 mm (0.2 in)
15 mm (0.6 in)
Monthly rainy days
a single day
a single day
a single day
Weather conditions

Mexicali

In September Mexicali generally has extremely high temperatures with maximum daytime temperatures around 39°C (102°F), minimum nighttime temperatures around 23°C (73°F) and almost no monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
42°C (108°F)
39°C (102°F)
33°C (91°F)
Min temperature
27°C (81°F)
23°C (73°F)
17°C (63°F)
Monthly rainfall
4.3 mm (0.2 in)
3.6 mm (0.1 in)
3.3 mm (0.1 in)
Monthly rainy days
2 days
a single day
a single day
Weather conditions

Valle de Guadalupe

In September Valle de Guadalupe generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 18°C (64°F) and low monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
29°C (84°F)
28°C (82°F)
25°C (77°F)
Min temperature
20°C (68°F)
18°C (64°F)
14°C (57°F)
Monthly rainfall
3.7 mm (0.1 in)
6.4 mm (0.3 in)
17 mm (0.7 in)
Monthly rainy days
a single day
a single day
a single day
Weather conditions

Rosarito

In September Rosarito generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 19°C (66°F) and low monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
23°C (73°F)
23°C (73°F)
22°C (72°F)
Min temperature
19°C (66°F)
19°C (66°F)
17°C (63°F)
Monthly sun hours
281 hours
272 hours
249 hours
Monthly rainfall
3 mm (0.1 in)
6.2 mm (0.2 in)
17 mm (0.7 in)
Monthly rainy days
a single day
a single day
a single day
Weather conditions

Is your destination not in the list? Have a look at all destinations in Baja California, in Mexico.

Popular cities in September

Day & night temperatures, rainfall and average weather in Baja California in September.

City Weather Day temp Night temp Rainfall
Tijuana 27°C (81°F) 17°C (63°F) 4.3 mm (0.2 in)
Ensenada 26°C (79°F) 18°C (64°F) 5.4 mm (0.2 in)
Mexicali 39°C (102°F) 23°C (73°F) 3.6 mm (0.1 in)
Valle de Guadalupe 28°C (82°F) 18°C (64°F) 6.4 mm (0.3 in)
Rosarito 23°C (73°F) 19°C (66°F) 6.2 mm (0.2 in)
Puerto Nuevo 25°C (77°F) 18°C (64°F) 5.3 mm (0.2 in)

Baja California weather in September: frequently asked questions

What is the weather like in Baja California, Mexico in September?

Expect perfect weather across Baja California, Mexico in September. The popular destination of Tijuana averages 27°C (81°F) by day and 17°C (63°F) at night during this month.

What is the average temperature in Baja California, Mexico in September?

Average temperatures in Baja California, Mexico during September range from a nighttime low near 17°C (63°F) to a daytime high around 27°C (81°F) in Tijuana.

Does Baja California, Mexico get a lot of rain in September?

Rain is generally moderate to light in Baja California, Mexico during September, with Tijuana averaging close to 4.3 mm (0.2 in).

Is September a Good Time to Visit Baja California, Mexico?

We believe that September is one of the best times to visit Baja California, Mexico with overall perfect weather in Tijuana.

On average, the best time to visit Baja California, Mexico is in January, February, March, April, May, June, July, August, September, October and November with generally perfect weather in Tijuana.

Interested in more climate information?

We have much more information about the climate in Baja California.

Weather and climate has detailed information for every country in the world. Are you going to Mexico? Get detailed historical weather averages for many cities in Mexico.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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