Month by month
| Month | Afternoon | Sea | Rain | Verdict |
|---|---|---|---|---|
| January | -2.8 °C | 0.4 °C | 14 days | Unfavourable season |
| February | -1.5 °C | -0.1 °C | 12 days | Unfavourable season |
| March | 2.7 °C | 0.2 °C | 11 days | Unfavourable season |
| April | 8.3 °C | 2.2 °C | 12 days | Unfavourable season |
| May | 15.1 °C | 10.1 °C | 10 days | Possible, with trade-offs |
| June | 20.5 °C | 17 °C | 12 days | Pleasant — a good time to go |
| July | 21.5 °C | 19.9 °C | 16 days | Possible, with trade-offs |
| August | 20.8 °C | 19.3 °C | 15 days | Possible, with trade-offs |
| September | 15.8 °C | 15.4 °C | 11 days | Possible, with trade-offs |
| October | 8.6 °C | 10.1 °C | 14 days | Unfavourable season |
| November | 2.9 °C | 5.7 °C | 12 days | Unfavourable season |
| December | -0.4 °C | 2.6 °C | 14 days | Unfavourable season |
Nearby in September
Before you go
Three things to check once you have picked your dates.
Entry
Visa required before departure. Passport valid for at least 6 months. Passport valid 6 months after the visa expires and signed; biometrics taken on arrival; register within 7 working days and keep your immigration card.
For a British passport, per the UK Foreign Office on 3 July 2026. Rules change: check before booking.
Safety
Travel advised against
Authorities advise against travelling there.
Official advice updated 3 July 2026
Health
Vaccines · hepatitis A and hepatitis B if you are not already vaccinated; Japanese encephalitis and tick-borne encephalitis depending on activities and areas visited. Routine vaccines up to date (measles in particular).
Yellow fever · No yellow fever locally, vaccine not recommended. No entry requirement.
Malaria · None.
Per the CDC (page reviewed 25 August 2026); see a travel clinic a few weeks before departure.
Beau Fixe is not a safety or health authority. These notes summarise dated public texts and link to their source: France Diplomatie (Licence Ouverte 2.0), Foreign, Commonwealth & Development Office (gov.uk, Open Government Licence v3.0), Centers for Disease Control and Prevention (Source: CDC). Only the competent authorities are authoritative.
FAQ
Can you swim in Peterhof in September?
The sea averages 15.4°C in September — too cold for most swimmers.
How hot is Peterhof in September?
Expect 15.8°C in the afternoon and 9.9°C at night, averaged over the last 10 years.
Does it rain a lot in Peterhof in September?
Around 11 days with rain (≥ 1 mm) in the month — 38% of days.