Month by month
| Month | Afternoon | Sea | Rain | Verdict |
|---|---|---|---|---|
| January | 4.8 °C | 4.4 °C | 13 days | Unfavourable season |
| February | 6.6 °C | 4.1 °C | 13 days | Unfavourable season |
| March | 9.3 °C | 5.6 °C | 11 days | Unfavourable season |
| April | 13.2 °C | 8.9 °C | 11 days | Possible, with trade-offs |
| May | 17.9 °C | 13 °C | 12 days | Possible, with trade-offs |
| June | 22.2 °C | 17 °C | 11 days | Pleasant — a good time to go |
| July | 22.5 °C | 18.9 °C | 15 days | Possible, with trade-offs |
| August | 23.3 °C | 19.6 °C | 13 days | Pleasant — a good time to go |
| September | 19.6 °C | 17.2 °C | 10 days | Pleasant — a good time to go |
| October | 14.4 °C | 13 °C | 14 days | Possible, with trade-offs |
| November | 8.6 °C | 9 °C | 14 days | Unfavourable season |
| December | 6.2 °C | 5.7 °C | 15 days | Unfavourable season |
Nearby in June
Before you go
Three things to check once you have picked your dates.
Entry
No visa needed for stays of up to 90 days. Passport valid for at least 3 months. Passport must be issued less than 10 years before arrival and valid 3 months after leaving Schengen; 90 days in any 180-day period; EES biometrics.
For a British passport, per the UK Foreign Office on 11 August 2026. Rules change: check before booking.
Safety
No specific restrictions
Usual precautions apply.
Official advice updated 11 August 2026
Health
CDC level 2 notice: Polio (global)
Vaccines · hepatitis B if you are not already vaccinated; hepatitis A, polio 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 Altona in June?
The sea averages 17°C in June — too cold for most swimmers.
How hot is Altona in June?
Expect 22.2°C in the afternoon and 12.9°C at night, averaged over the last 10 years.
Does it rain a lot in Altona in June?
Around 11 days with rain (≥ 1 mm) in the month — 38% of days.