nomadseason

September Weather in Los Osos, United States

Last updated: June 24, 2025

In Los Osos, United States, the average temperature in September hovers around 18°C (65°F), offering a pleasant climate. Temperatures may vary, with a minimum of 11°C (53°F) and a peak reaching 35°C (95°F). Additionally, you can expect a low precipitation level of 1 mm (0.0 in) over 0 days, and an average humidity of 70%, making it a comfortable time to explore!

September Temperature in Los Osos

In September in Los Osos, the average temperature is 18°C (65°F). The maximum can reach 35°C (95°F), while the minimum can be as low as 11°C (53°F). Travelers should prepare for a mix of warm days and cooler evenings, making it an ideal time for outdoor activities and exploring the area.

September Weather in Los Osos: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Los Osos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Los Osos, September typically has an average temperature of 18°C (65°F), with highs reaching up to 35°C (95°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec545455575862646565635954
Data source: Temperature data for Los Osos generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Los Osos

In Los Osos in September, the precipitation amount is 1 mm (0.0 in) during a span of 0 days.

September Precipitation Trends in Los Osos

The chart displays monthly precipitation patterns in Los Osos, 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. In Los Osos, September typically receives around 1 mm (0.0 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec110808423121111113276
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Los Osos

In Los Osos in September humidity is 70%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making it quite comfortable for traveling, though it can leave you feeling slightly sticky if you're on the move for too long.

September Average Humidity in Los Osos

This chart illustrates the average monthly humidity levels in Los Osos, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Los Osos is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%83%80%76%75%74%75%72%70%70%74%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Los Osos

In Los Osos in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Los Osos.

Maximum UV Index Levels in Los Osos for September

The chart shows the monthly maximum UV Index (UVI) for Los Osos 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. In September, the maximum UV index in Los Osos typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4589101212119753
Data source: Los Osos 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.

How September Weather in Los Osos Compares to Other Months

Weather in Los Osos varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Los Osos, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Los Osos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)110 mm (4.3 inches)80%moderate
February Weather12°C (54°F)80 mm (3.2 inches)83%moderate
March Weather13°C (55°F)84 mm (3.3 inches)80%very high
April Weather14°C (57°F)23 mm (0.9 inches)76%very high
May Weather15°C (59°F)12 mm (0.5 inches)75%very high
June Weather16°C (62°F)1 mm (0.0 inches)74%extreme
July Weather18°C (64°F)1 mm (0.0 inches)75%extreme
August Weather18°C (65°F)1 mm (0.0 inches)72%extreme
September Weather18°C (65°F)1 mm (0.0 inches)70%very high
October Weather17°C (64°F)10 mm (0.4 inches)70%high
November Weather15°C (59°F)32 mm (1.2 inches)74%moderate
December Weather12°C (54°F)76 mm (3.0 inches)76%moderate

Compare Los Osos's Climate with Cities Worldwide