# San Salvador in October: weather

San Salvador, El Salvador (Mexico & Central America). Ten-year climatology (2015-2024), not a forecast. Page: https://beaufixe.net/en/weather/san-salvador/october

## Key figures

| Indicator | Value |
|---|---|
| Afternoon (mean daily max) | 27.6 °C |
| Night (mean daily min) | 20.9 °C |
| Rainy days (≥ 1 mm) | 26 / month |
| Relative humidity | 86 % |
| Probability of a 25 °C+ afternoon | 90 % |

## Month by month

| Month | Afternoon | Night | Sea | Rain (d) |
|---|---|---|---|---|
| January | 30.8 °C | 19.4 °C | – | 2 |
| February | 31.5 °C | 19.6 °C | – | 1 |
| March | 31.9 °C | 20.8 °C | – | 6 |
| April | 31.3 °C | 21.5 °C | – | 16 |
| May | 29.3 °C | 21.7 °C | – | 26 |
| June | 27.8 °C | 21.4 °C | – | 27 |
| July | 29.5 °C | 21.6 °C | – | 24 |
| August | 28.8 °C | 21.5 °C | – | 26 |
| September | 27.9 °C | 21.2 °C | – | 29 |
| October | 27.6 °C | 20.9 °C | – | 26 |
| November | 28.4 °C | 20.4 °C | – | 14 |
| December | 30 °C | 19.8 °C | – | 4 |

Best months : February, January, December.

## Before you go

- **Safety** : No specific restrictions. Usual precautions apply. (official advice updated 17 June 2026 — https://www.gov.uk/foreign-travel-advice/el-salvador)
- **Entry** (British passport) : No visa needed for stays of up to 180 days. Passport valid for at least 6 months. Visa-free up to 180 days; travel between El Salvador, Guatemala and Nicaragua counts within a single 90-day CA-4 period. (per the UK Foreign Office, 17 June 2026)
- **Vaccines** : typhoid recommended for most travellers; hepatitis A and hepatitis B if you are not already vaccinated. Routine vaccines up to date (measles in particular).
- **Yellow fever** : No yellow fever locally, vaccine not recommended. Certificate required only if you arrive from a country with yellow fever risk.
- **Malaria** : None.
- **Mosquitoes** : dengue and Zika reported: protect yourself from bites.
  (per the CDC, page reviewed 3 September 2026 — https://wwwnc.cdc.gov/travel/destinations/traveler/none/el-salvador)

## 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.