August Weather in Nikiski, United States

Last updated: June 24, 2025

In Nikiski, United States, the average temperature for August hovers around 14°C (58°F). Expect chilly moments with minimums dropping to 9°C (49°F), while highs can reach a pleasant 20°C (69°F). Be prepared for the wet weather, as 97 mm (3.8 in) of precipitation typically falls over 12 days, accompanied by a high average humidity of 99%.

August Temperature in Nikiski

In August in Nikiski, the average temperature is 14°C (58°F), with maximums reaching 20°C (69°F) and minimums dropping as low as 9°C (49°F). It's a pleasant time to visit, so pack accordingly for mild weather!

August Weather in Nikiski: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Nikiski, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nikiski, August typically has an average temperature of 14°C (58°F), with highs reaching up to 20°C (69°F) and lows dropping to around 9°C (49°F).

Data source: Temperature data for Nikiski generated using information from the Copernicus Climate Change Service.

August Precipitation in Nikiski

In Nikiski in August, the precipitation amount is 97 mm (3.8 in) spread over 12 days.

August Precipitation Trends in Nikiski

The chart displays monthly precipitation patterns in Nikiski, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Nikiski, August typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Nikiski

In Nikiski in August humidity is 99%. With an average temperature of 14°C (58°F), this humidity feels like a thick, steamy blanket enveloping you, making travel feel sticky and heavy, as though every step requires extra effort in the damp air.

August Average Humidity in Nikiski

This chart illustrates the average monthly humidity levels in Nikiski, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Nikiski is approximately 99%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Nikiski

In Nikiski in August, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Nikiski.

Maximum UV Index Levels in Nikiski for August

The chart shows the monthly maximum UV Index (UVI) for Nikiski in August, 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 August, the maximum UV index in Nikiski typically reaches 5, which falls under the moderate exposure category.

Data source: Nikiski August 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 August Weather in Nikiski Compares to Other Months

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

This table compares monthly weather conditions in Nikiski, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	53 mm (2.1 inches)	95%	low
February Weather	-3°C (27°F)	59 mm (2.3 inches)	95%	low
March Weather	-2°C (29°F)	41 mm (1.6 inches)	90%	low
April Weather	2°C (36°F)	39 mm (1.6 inches)	82%	moderate
May Weather	7°C (44°F)	63 mm (2.5 inches)	85%	moderate
June Weather	11°C (52°F)	43 mm (1.7 inches)	95%	high
July Weather	14°C (57°F)	77 mm (3.0 inches)	100%	high
August Weather	14°C (58°F)	97 mm (3.8 inches)	99%	moderate
September Weather	11°C (53°F)	137 mm (5.4 inches)	97%	moderate
October Weather	6°C (44°F)	150 mm (5.9 inches)	93%	low
November Weather	0°C (32°F)	101 mm (4.0 inches)	97%	low
December Weather	-2°C (29°F)	109 mm (4.3 inches)	98%	low