# Geneva in August: weather

Geneva, Switzerland (Europe). Ten-year climatology (2015-2024), not a forecast. Page: https://beaufixe.net/en/weather/geneva/august

## Key figures

| Indicator | Value |
|---|---|
| Afternoon (mean daily max) | 26.4 °C |
| Night (mean daily min) | 16.8 °C |
| Rainy days (≥ 1 mm) | 9 / month |
| Relative humidity | 68 % |
| Probability of a 25 °C+ afternoon | 62 % |

## Month by month

| Month | Afternoon | Night | Sea | Rain (d) |
|---|---|---|---|---|
| January | 5.5 °C | -0.2 °C | – | 13 |
| February | 8 °C | 0.6 °C | – | 10 |
| March | 11.3 °C | 2.7 °C | – | 13 |
| April | 15.1 °C | 5.6 °C | – | 11 |
| May | 18.4 °C | 9.8 °C | – | 14 |
| June | 23.7 °C | 14.8 °C | – | 13 |
| July | 26.7 °C | 17 °C | – | 10 |
| August | 26.4 °C | 16.8 °C | – | 9 |
| September | 21.4 °C | 13 °C | – | 10 |
| October | 16.3 °C | 8.7 °C | – | 11 |
| November | 9.9 °C | 3.8 °C | – | 14 |
| December | 7 °C | 1 °C | – | 13 |

Best months : July, August, June.

## Before you go

- **Safety** : No specific restrictions. Usual precautions apply. (official advice updated 11 August 2026 — https://www.gov.uk/foreign-travel-advice/switzerland)
- **Entry** (British passport) : No visa needed for stays of up to 90 days. Passport valid for at least 3 months. Schengen rules: passport issued less than 10 years ago and valid 3 months after leaving Schengen; proof of about 100 CHF a day may be asked. (per the UK Foreign Office, 11 August 2026)
- **Vaccines** : hepatitis B if you are not already vaccinated; hepatitis A 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 — https://wwwnc.cdc.gov/travel/destinations/traveler/none/switzerland)

## Sources

Air, rain, humidity: ERA5-Land reanalysis (Copernicus) served by Open-Meteo (CC BY 4.0). Sea: NOAA OISST. Safety: FCDO (OGL v3), zones reviewed by Beau Fixe. Entry: France Diplomatie (Licence Ouverte 2.0) / FCDO. Health: CDC (public domain). Details: https://beaufixe.net/en/legal#sources

Beau Fixe — https://beaufixe.net — not a forecast; only the authorities are authoritative for safety, entry rules and health.