Petropavlovsk-Kamchatsky weather in September

Russia

Petropavlovsk-Kamchatsky, Russia
Photo: Александр Максин · Pexels

September in Petropavlovsk-Kamchatsky: cool, rainy, with clean air — a great time to visit.

#4 of 12 months in Petropavlovsk-Kamchatsky · #727 of 1383 destinations to visit in September · comfort 79/100 (tier B)

Updated September 2026 · climate normals from ERA5 reanalysis

Traveller notes on Petropavlovsk-Kamchatsky in September

No notes about September yet — the year-round notes are on Petropavlovsk-Kamchatsky's overview. Open Petropavlovsk-Kamchatsky on the map to add the first one.

Petropavlovsk-Kamchatsky climate normals — September

Daytime high15°C / 59°F🙂 cool
Nighttime low6°C / 42°F
Feels like (high)12°C / 54°F
Sea temperature12°C / 54°F🥶 cold sea
Rainfall111 mm / 4.4 in🌧 rainy
Rainy days11 days
Humidity81%💦 very humid
Dew point5°C / 42°F
Sunshine8.3 h/day
Daylight12.7 h
Wind22 km/h / 13 mph
Snowfall0.1 cm / 0 in
Air quality (US AQI)23🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Petropavlovsk-Kamchatsky in September

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Petropavlovsk-Kamchatsky's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherPetropavlovsk-Kamchatsky's weather peaks June–August, best around July.

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Best weatherFair weatherToughest weather

What's on in Petropavlovsk-Kamchatsky in September

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Hazard

    Volcanic ash and flight delays

    1 Jan – 31 DecVolcanic activityClosures

    Several volcanoes within sight of the city are active in any given year, and an ash cloud closes the airport or the trails around it at no notice. Aviation colour codes are published daily. Source ↗

  • Rule

    Valley of Geysers permit flights

    1 Jun – 30 Sep · usuallyBook earlyClosures

    The valley sits inside Kronotsky reserve and is reachable only on a permitted helicopter day with a ranger. Flights go when the caldera weather allows, so operators tell you to hold a spare day. Source ↗

  • Nature

    Salmon run

    15 Jun – 15 Sep · usuallyWildlife season

    Six species come up the rivers through the summer, in the largest run of wild Pacific salmon anywhere. Everything else on the peninsula, bears included, arranges itself around it.

  • Season

    Volcano trekking season

    1 Jul – 20 Sep · usuallyTrail season

    The tracks out to Mutnovsky and Gorely only clear of snow in July, and are impassable again by late September. Avachinsky is the one climbable in a long day from the city.

  • Nature

    Brown bears at Kuril Lake

    15 Jul – 20 Sep · usuallyWildlife seasonBook early

    Bears gather at the lake in the south reserve while the sockeye are spawning, and access is by helicopter with a permit and a ranger. Places are sold months ahead. Source ↗

  • Nature

    Berry and mushroom season

    1 Aug – 20 Sep · usuallyForaging season

    Crowberry, blueberry and cloudberry come on across the tundra in August and the mushrooms follow. Half the city drives out at weekends with buckets, which is why the tracks are busy.

What's on around the world in September

Where is Petropavlovsk-Kamchatsky?

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Petropavlovsk-Kamchatsky in September — FAQ

Is September a good time to visit Petropavlovsk-Kamchatsky?
September in Petropavlovsk-Kamchatsky: cool, rainy, with clean air — a great time to visit. It ranks #4 of 12 months for Petropavlovsk-Kamchatsky on SeasonMap's comfort score (79/100).
What is the weather like in Petropavlovsk-Kamchatsky in September?
In September, Petropavlovsk-Kamchatsky averages a daily high of 15°C and a low of 5.6°C, with about 110.5 mm of rain over roughly 10.9 rainy days.
What is the air quality in Petropavlovsk-Kamchatsky in September?
Petropavlovsk-Kamchatsky has a mean US Air Quality Index of about 23 in September.

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