Nikiski Weather in September

September in Nikiski typically sees daytime highs of 13°C (55°F) and nighttime lows of 9°C (48°F). As the wettest month of the year, expect more rainfall than other months.

Rainfall in Nikiski in September

Prepare for the heaviest rain of the year this month, which often comes in heavy showers. A poncho is a smart choice to stay dry. Based on our climate data of the past 30 years, about 15 days of rain are anticipated, with 153 mm (6 in) on average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Nikiski in September

September in Nikiski brings moderate temperatures, with highs of 13°C (55°F) and nights around 9°C (48°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

September in Nikiski can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.