Prudhoe Bay in September

In September, Prudhoe Bay averages 4°C (39°F) during the day and 0°C (32°F) at night, with frequent rain — about 15 days of the month see precipitation (32 mm total).

Off-peak

Conditions are cold — pack winter layers. Plan for unsettled weather and bring rain gear.

It's peak hurricane season in Prudhoe Bay during September. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.

4°C
Avg high
0°C
Avg low
15
Rain days
32 mm
Rainfall

How September compares to the rest of the year in Prudhoe Bay

4th
warmest month of the 12
3rd
wettest month of the 12
13%
of yearly rainfall falls in September
13 h 26 min
daylight on the 15th

September is in the middle of the year for warmth in Prudhoe Bay (4th of 12) and one of the wettest months (3rd of 12). Daytime temperature runs 10°C above the annual average (-6°C). September runs 4°C cooler than August (8°C) and cools 7°C in October (-3°C).

September sunrise & sunset in Prudhoe Bay

🌅
Sunrise (15th)
7:05 AM
🌇
Sunset (15th)
8:31 PM
Day length
13 h 26 min

Times shown for Prudhoe Bay local time (America/Anchorage), calculated for the 15th of September. They shift by a few minutes day to day across the month.

Photography light in Prudhoe Bay — September

Golden-hour and blue-hour windows for the 15th of September, in Prudhoe Bay's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).

🌅 Blue hour (AM)
6:05 AM – 6:45 AM
🌄 Golden hour (AM)
6:45 AM – 7:45 AM
🌇 Golden hour (PM)
7:51 PM – 8:51 PM
🌆 Blue hour (PM)
8:51 PM – 9:31 PM
Milky Way galactic core
Poor
Core barely rises (or hasn't yet returned for the season). Consider a different month.
Aurora visibility
Excellent
Prudhoe Bay sits in the auroral oval — even modest geomagnetic activity (Kp 3-4) puts aurora overhead on clear nights this month.

📅 When to book — Prudhoe Bay in September

Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (Off-peak) and Prudhoe Bay's popularity.

✈ Flights — lead time
3-6 weeks
Cheapest flights of the year. Last-minute deals are real if you can be flexible. ⚠ Peak hazard season — book flexible-change tickets and travel insurance with weather-disruption coverage.
🏨 Lodging — lead time
2-4 weeks
Last-minute bookings work fine. Some seasonal properties close — call ahead if it's a small boutique or beach resort.

Crowds & pricing — September in Prudhoe Bay

Off-peak

This is off-peak for Prudhoe Bay — the lowest prices of the year and the fewest crowds, but with real trade-offs: some restaurants, hotels, and beach businesses may close for the season; weather conditions can make outdoor activities unpredictable; and a handful of seasonal sights run reduced hours or close entirely. Great if you prefer a quiet local rhythm and don't mind the climate giving you reasons to choose indoor activities.

Why this tier: challenging tourism weather peak hazard season (1 active)

Sun & mosquito risk — September in Prudhoe Bay

☀️ UV Index (noon, 15th)
3.6
Moderate
Use SPF 15-30 for prolonged outdoor exposure; sunglasses recommended at peak hours.
🦟 Mosquito risk
●●○○○
Low
Mosquitoes present but manageable. Pack repellent (DEET 10-20%) for evenings near water.

UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.

🍂 Cool — Prudhoe Bay in September

Snow days (typical)
0
days/month
Avg low
0°C
32°F
Avg day high
4°C
39°F

Gear: Cool to cold. Layered approach — sweater + jacket — works for most days.

Prudhoe Bay in other months

MonthAvg highAvg lowRainfallRain daysSnow days
January -21°C / -6°F -26°C / -15°F 8 mm 8
February -21°C / -6°F -28°C / -18°F 11 mm 9
March -16°C / 2°F -23°C / -9°F 9 mm 9
April -10°C / 14°F -15°C / 4°F 6 mm 5
May 0°C / 33°F -4°C / 25°F 13 mm 9
June 8°C / 46°F 2°C / 35°F 23 mm 10
July 11°C / 52°F 4°C / 40°F 43 mm 16
August 8°C / 47°F 3°C / 38°F 59 mm 17
September 4°C / 39°F 0°C / 32°F 32 mm 15
October -3°C / 27°F -8°C / 18°F 19 mm 14
November -11°C / 11°F -17°C / 1°F 17 mm 12
December -19°C / -3°F -25°C / -13°F 13 mm 10

Other cities with similar September weather

🌍 See the full ranked list of climate twins for Prudhoe Bay in September →

Frequently asked questions

How hot is Prudhoe Bay in September?

In September, Prudhoe Bay averages a high of 4°C (39°F) and a low of 0°C (32°F) — generally cold.

Does it rain a lot in Prudhoe Bay in September?

September is quite rainy in Prudhoe Bay, with about 15 rainy days on average.

Is September a good time to visit Prudhoe Bay?

September is cold but on the rainy side. It suits travelers who are comfortable with cold weather; check the month-by-month ranking to compare it against the rest of the year.

What should I pack for Prudhoe Bay in September?

Pack heavy winter layers, a coat, hat and gloves, plus a compact umbrella or rain jacket. See the full September packing list for Prudhoe Bay for a complete, climate-based checklist.

Open Prudhoe Bay on the interactive map

Check the live 10-day forecast and sunrise/sunset.