September · Alaska
Best time to visit Valdez in September Weather, crowds & prices
Weather in Valdez in September
Average temperature 6°C, 323 mm of rain, about 1 days with 6+ hours of sunshine and 90% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
3.5/10
Ranked #6 of 12 months
- Avg temp
- 6°C
- Rainfall
- 323 mm
- Humidity
- 90%
- Days with 6h+ sun
- 1
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Valdez scores 3.5/10 for nature and wildlife travel - an above-average month (#6 of 12). Expect around 6°C, 323 mm of rain, and roughly 1 days with 6+ hours of sunshine this month.
Valdez sits beneath steep Chugach peaks with waterfall-lined fjords, heli-ski terrain, and Prince William Sound cruises.
September in Valdez — the hardest end of the year
September averages 6°C (43°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
323 mm of rain puts this in monsoon territory — about 1 days with 6+ hours of sunshine across the whole month, and multi-day washouts are normal.
It scores 3.5/10 here, 6th of 12 months, against 7.6/10 in the destination's best month.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
Figure on mid-season pricing, with crowds are moderate.
Flexible dates? June scores 4.1 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Valdez in September?
- In September, Valdez averages 6°C, 323 mm of rain, and about 1 days with 6+ hours of sunshine. Its climate-comfort score is 3.5/10.
- Is September a good time to visit Valdez?
- September earns a 3.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Valdez in September?
- Expect about 323 mm of rain in September. Average humidity is 90% and there are about 1 days with 6+ hours of sunshine.
Curated in Valdez
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Valdez, Alaska. Live activities and tours from GetYourGuide, matched to this destination.