September Weather in La Paz, Mexico

Last updated: April 22, 2025

Experience the vibrant weather of La Paz, Mexico in September, where temperatures reach a maximum of 32°C (90°F), making for warm, sunny days perfect for exploration. With an average temperature of 28°C (83°F) and a pleasant minimum of 23°C (74°F), the climate is inviting for visitors. Although the month sees about 85 mm (3.3 in) of rainfall spread over 7 days, the humidity lingers around 77%, enhancing the tropical feel of the region. Embrace the lively atmosphere and enjoy the beauty of La Paz as it transitions through early autumn!

September Temperature in La Paz

In September, La Paz, Mexico, experiences pleasant and warm temperatures, making it a great time to visit. The minimum temperature settles at a comfortable 23°C (74°F), providing a mild start to the month, while the average hovers around a balmy 28°C (83°F). As days progress, the maximum temperature can reach up to 32°C (90°F), maintaining the summer warmth that characterizes the region. This trend indicates a gradual shift from the hotter months of August, with September offering a slightly more temperate environment, perfect for outdoor activities and exploring the stunning landscapes. As the month unfolds, visitors can look forward to sunshine and a welcoming atmosphere, as La Paz transitions into the crispness of fall.

September Weather in La Paz: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in La Paz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec666668727478828482817669
Data source: Temperature data for La Paz generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in La Paz

September marks a significant change in La Paz's weather, with precipitation skyrocketing to 85 mm (3.3 in), making it the wettest month of the year. This month's rainfall occurs over 7 days, contributing to the overall shift from the dry spell experienced in previous months. Following a modest beginning with 0 mm in April and May, the steady increase in rainfall culminates in September, showcasing a clear transition into the rainy season. Notably, August sets the stage with 25 mm (1.0 in) over 5 days, but September's downpour highlights the peak of local weather patterns, emphasizing the importance of this month in replenishing the landscape and nurturing the flora.

September Precipitation Trends in La Paz

The chart displays monthly precipitation patterns in La Paz, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec81120067258572516
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in La Paz

In September, La Paz experiences a notable increase in humidity, reaching 77%, a significant rise from August's already elevated 76%. This trend highlights the end of the summer months, as the coastal influence and transitional weather patterns contribute to the elevated moisture levels. Following the gradual decrease from January's humid peak of 70%, September stands out as a month where the air feels particularly thick, setting the stage for the rainy season ahead. As the city transitions into October with a slight drop to 76%, it's clear that September's humidity marks a reminder of the warmth and moisture that embodies this vibrant coastal region.

September Average Humidity in La Paz

This chart illustrates the average monthly humidity levels in La Paz, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec70%66%61%57%59%59%68%76%77%76%73%71%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in La Paz

In September, La Paz experiences a UV Index of 12, categorized as extreme, which means that sun exposure can lead to skin damage in as little as 10 minutes. This trend of high UV levels remains consistent from the months of March through September, with the index peaking in June at 13. It’s advisable for residents and visitors alike to take protective measures, such as wearing sunscreen and seeking shade, especially during the peak hours of sunlight. As the season transitions to October, the UV Index drops slightly to 10, indicating a shift towards very high exposure levels. For more details on daily UV forecasts and safety tips, check out La Paz UV Index.

Maximum UV Index Levels in La Paz for September

The chart shows the monthly maximum UV Index (UVI) for La Paz in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec79111212131212121086
Data source: La Paz September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in La Paz

As September rolls in, La Paz, Mexico, basks in a delightful 302 hours of sunshine, marking a gentle shift from the intense brightness of summer. While the warm days of May reach their zenith at 358 hours, September still offers a generous amount of sunlight, making it an ideal time for outdoor adventures and leisurely strolls along the coastline. The month stands out in contrast to the previous two months of intense sun, as the city gracefully transitions into autumn, with decreasing daylight hours leading into October's 306 hours. Overall, September can be seen as a bridge between the vibrant summer and the cooler, sun-filled days ahead, ensuring that residents and tourists alike continue to enjoy the enchanting beauty of La Paz.

Monthly Sunshine Duration in La Paz: September Highlighted

The September sunshine duration represents the total number of hours La Paz experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec223h256h304h325h358h351h351h330h302h306h273h269h
Data source: La Paz September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in La Paz During September

In La Paz, Mexico, September boasts a moderate chance of sunny weather, with approximately 66% of the days likely to be bright and clear. As summer transitions into fall, this month holds steady in its sunshine likelihood, mirroring the consistent conditions seen in both April and July. While August experiences a notable dip in sun-filled days, September rebounds to offer a favorable balance of warm temperatures and sunshine, making it an appealing time for outdoor activities. The trend throughout the year indicates that though September may not boast the top statistics, it remains a solid choice for those seeking a delightful getaway under mostly sunny skies.

Percentage of Sunny Days in September in La Paz

The chart illustrates the percentage of sunny days in La Paz throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often La Paz experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec63%67%60%66%78%72%66%44%66%78%58%54%
Data source: La Paz September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in La Paz in September

In September, La Paz enjoys a harmonious balance with 12 hours of daylight, reflecting a gradual transition as summer edges towards autumn. This duration is consistent with the longer days of the preceding months, peaking at 13 hours in May through July. As the seasons shift, daylight begins to wane, with October marking a decrease to 11 hours. Overall, the trend illustrates a steady increase in daylight from the depths of winter, culminating in a rich summer glow, before gently tapering off towards the end of the year. This rhythmic pattern not only highlights the beauty of La Paz's climate but also sets the stage for the vibrant changes that characterize each season.

Average Daylight Hours in La Paz for September

The chart illustrates the variation in daylight duration in La Paz throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 49m11h 20m12h 1m12h 43m13h 18m13h 35m13h 26m12h 55m12h 14m11h 33m10h 57m10h 39m
Data source: La Paz daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in La Paz

As September arrives in La Paz, Mexico, a gentle breeze sweeps through the region, with an average wind speed of 3.5 m/s (8 mph). This marks a slight dip from the summer months, where wind speeds remained consistently around 3.7 - 3.9 m/s (8-9 mph), reflecting a transition towards the quieter, cooler autumn. Interestingly, this trend of lower wind speeds continues into October, hinting at a calming in the coastal atmosphere. Overall, the winds during September maintain a delightful, refreshing quality, inviting both locals and visitors to relish the last days of summer before the brisker months descend.

Average September Wind Speed in La Paz

The chart displays monthly wind speed patterns in La Paz, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.83.53.93.53.93.93.73.73.5 m/s3.53.03.4
Data source: La Paz September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in La Paz Compares to Other Months

The weather in La Paz changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in La Paz and find detailed weather information for every month.

In September, temperatures are significantly warmer, with average highs around 28°C (83°F) and peaks reaching up to 32°C (90°F). The month is also characterized by higher humidity at 77% and more frequent rainfall, totaling about 85 mm across approximately 7 days. In contrast, January offers a cooler climate, with average temperatures only reaching 19°C (67°F) and maximums of 25°C (76°F). Precipitation is minimal in January, with just 7 mm recorded over 1 day, and humidity is slightly lower at 70%. For more detailed information, check out La Paz weather in January.

September and February exhibit stark contrasts in weather, showcasing the shift from late summer to early spring. In September, temperatures range from a comfortable minimum of 23°C (74°F) to a warm maximum of 32°C (90°F), with an average of 28°C (83°F). The month is characterized by higher humidity at 77% and notable precipitation of 85 mm (3.3 in) over approximately 7 days. In contrast, February experiences much cooler conditions, with temperatures dipping to a low of 14°C (58°F) and a high of only 26°C (79°F), averaging at 19°C (66°F). This month sees significantly less rainfall, with only 11 mm (0.4 in) over just 1 day and lower humidity at 66%. For more details on February weather specifically, you can check La Paz weather in February.

September and March present contrasting weather patterns. In September, temperatures tend to be warmer, with minimums around 23°C (74°F) and average highs reaching 32°C (90°F), accompanied by notable humidity at 77%. This month also experiences moderate rainfall, with an average of 85 mm (3.3 in) over about 7 days. In contrast, March offers a cooler climate, characterized by minimum temperatures of 14°C (58°F) and a more comfortable average of 20°C (68°F), peaking at 27°C (81°F). The month is notably dry, receiving just 2 mm (0.1 in) of precipitation, and has a lower humidity level of 61%. For a closer look at March weather, you can explore La Paz weather in March.

September weather is characterized by higher temperatures, with a minimum of 23°C (74°F) and an average of 28°C (83°F), peaking at 32°C (90°F). This month also experiences considerable precipitation, averaging 85 mm (3.3 in) over about 7 days, along with a humidity level of 77%. In contrast, April features much milder temperatures, with a minimum of 15°C (60°F) and an average of 22°C (72°F), reaching a maximum of 29°C (85°F). Notably, April is dry, with no recorded precipitation over the month and a lower humidity of 57%. For more details on why April might be an appealing time to visit, you can check La Paz weather in April.

In September, La Paz experiences warmer temperatures, with a minimum of 23°C (74°F) and an average of 28°C (83°F), peaking at 32°C (90°F). The month also sees higher humidity levels at 77% and an average of 85 mm (3.3 in) of precipitation spread over 7 days. In contrast, May offers a milder climate with temperatures ranging from a minimum of 16°C (62°F) to an average of 23°C (75°F) and a maximum of 30°C (86°F). Unique to May, it enjoys dry conditions with no recorded precipitation or rainy days, making it an ideal time for outdoor activities. For more details, check La Paz weather in May.

In September, the weather in La Paz tends to be warmer with average temperatures ranging from a mild 23°C (74°F) to a peak of 32°C (90°F), accompanied by higher humidity levels at 77%. This month also sees more precipitation, with around 85 mm (3.3 in) falling over an average of seven days, making it a bit more humid and wet compared to June. Conversely, June enjoys slightly cooler temperatures, with daytime averages of 26°C (79°F) and a maximum reaching 32°C (89°F), but it features significantly less rainfall—only 6 mm (0.2 in) over just one day and lower humidity at 59%. For more details about the weather conditions, you can check La Paz weather in June.

In comparing the weather of September and July, we find that both months share similar temperature ranges, with minimums around 22-23°C (71-74°F) and maximums reaching 32°C (90°F). However, September experiences significantly higher precipitation, with an average of 85 mm (3.3 in) over 7 days, compared to just 7 mm (0.3 in) over 2 days in July. Humidity levels also differ, as September has a higher humidity rate of 77% compared to July's 68%. For more specific details on July weather patterns, you can visit La Paz weather in July.

In comparing the weather between August and September, we see some notable differences. September features slightly cooler temperatures, with a minimum of 23°C (74°F) and a maximum of 32°C (90°F), as opposed to August's minimum of 25°C (78°F) and maximum of 33°C (92°F). Additionally, September tends to be wetter, receiving 85 mm (3.3 in) of precipitation over 7 days, while August sees only 25 mm (1.0 in) of rain across 5 days. Humidity levels remain comparable, with September at 77% and August at 76%. For a more detailed look at August weather, you can visit La Paz weather in August.

In September, the weather is characterized by warmer temperatures, with a minimum of 23°C (74°F) and an average high of 32°C (90°F), along with relatively high humidity at 77%. This month experiences significant rainfall, with about 85 mm (3.3 in) of precipitation over 7 days.

In contrast, October brings slightly cooler temperatures, with a minimum of 21°C (70°F) and an average of 27°C (81°F). Notably, October is much drier, with only 7 mm (0.3 in) of rainfall occurring over just 1 day. The humidity also decreases slightly to 76%, making October a more comfortable month overall. For more detailed information, you can check La Paz weather in October.

September and November exhibit notable differences in weather conditions. In September, temperatures are generally warmer, with a minimum of 23°C (74°F) and an average around 28°C (83°F), peaking at 32°C (90°F). This month also experiences higher humidity at 77% and more frequent rain, with 85 mm (3.3 in) of precipitation over 7 days. In contrast, November brings a cooler climate, featuring a minimum temperature of 19°C (67°F) and an average of 24°C (76°F), with a maximum reaching 30°C (86°F). Additionally, rainfall significantly decreases to just 25 mm (1.0 in) over a single day and humidity dips slightly to 73%. For a more detailed look at November's weather, you can visit La Paz weather in November.

September and December exhibit quite distinct weather patterns. In September, temperatures range from a minimum of 23°C (74°F) to a maximum of 32°C (90°F), with an average of 28°C (83°F). This month is characterized by higher humidity at 77% and more rainfall, receiving about 85 mm (3.3 in) over roughly 7 days. In contrast, December offers cooler temperatures, with a minimum of 15°C (60°F) and a maximum of 26°C (79°F), averaging 21°C (70°F). Precipitation is minimal in December, totaling only 16 mm (0.6 in) across just 1 day, and humidity decreases slightly to 71%. For a closer look at December weather specifics, you can check out La Paz weather in December.

Compare La Paz's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in La Paz

As September rolls in, La Paz experiences a unique blend of warmth and humidity that sets it apart from other months. With average temperatures reaching a comfortable 28°C (83°F), the days are pleasantly warm, inviting outdoor exploration. However, it's also a month marked by an increase in precipitation, with an average of 85 mm (3.3 in) spread across about 7 days, bringing refreshing rains that nourish the landscape. The elevated humidity levels at 77% can make the heat feel more intense, but these tropical-like conditions create a vibrant atmosphere that's perfect for enjoying outdoor activities before the cooler months approach. Explore more about the nuances of weather in this beautiful coastal city at La Paz Climate.