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September Weather in Tulelake, United States

Last updated: June 24, 2025

In September, the average temperature in Tulelake, United States hovers around 17°C (63°F), making it a generally comfortable time to visit. However, be prepared for temperature fluctuations ranging from a brisk -1°C (31°F) to a sizzling 36°C (98°F). Rainfall is relatively light with an average precipitation of 17 mm (0.7 in) over the course of 3 days, and travelers can expect an average humidity level of 46%. Whether you're exploring the outdoors or enjoying local culture, this month offers a unique climate experience!

September Temperature in Tulelake

In September in Tulelake, the average temperature is 17°C (63°F). The maximum can reach 36°C (98°F), while the minimum can be as low as -1°C (31°F). This variation in temperature makes it essential for travelers to pack accordingly for both warm and cool conditions.

September Weather in Tulelake: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Tulelake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tulelake, September typically has an average temperature of 17°C (63°F), with highs reaching up to 36°C (98°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec343541475565737262493933
Data source: Temperature data for Tulelake 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 Tulelake

In Tulelake in September, the precipitation amount is 17 mm (0.7 in) over the course of 3 days.

September Precipitation Trends in Tulelake

The chart displays monthly precipitation patterns in Tulelake, 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 Tulelake, September typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec6573644643174417344954
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tulelake

In Tulelake in September, humidity is 46%. With an average temperature of 17°C (63°F), this humidity feels like a mild embrace—comfortable for exploring the sights, though you might notice a slight heaviness in the air that encourages a leisurely pace as you take in the vibrant surroundings.

September Average Humidity in Tulelake

This chart illustrates the average monthly humidity levels in Tulelake, 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 Tulelake is approximately 46%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%87%86%83%72%67%56%42%46%67%86%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Tulelake

In Tulelake 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 Tulelake.

Maximum UV Index Levels in Tulelake for September

The chart shows the monthly maximum UV Index (UVI) for Tulelake 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 Tulelake typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579111111109643
Data source: Tulelake 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 Tulelake Compares to Other Months

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

This table compares monthly weather conditions in Tulelake, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)65 mm (2.5 inches)86%moderate
February Weather2°C (36°F)73 mm (2.9 inches)87%moderate
March Weather5°C (41°F)64 mm (2.5 inches)86%high
April Weather8°C (47°F)46 mm (1.8 inches)83%very high
May Weather13°C (56°F)43 mm (1.7 inches)72%extreme
June Weather18°C (65°F)17 mm (0.7 inches)67%extreme
July Weather23°C (74°F)4 mm (0.2 inches)56%extreme
August Weather22°C (72°F)4 mm (0.2 inches)42%very high
September Weather17°C (63°F)17 mm (0.7 inches)46%very high
October Weather10°C (50°F)34 mm (1.3 inches)67%high
November Weather4°C (40°F)49 mm (1.9 inches)86%moderate
December Weather0°C (33°F)54 mm (2.1 inches)86%moderate

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