# San Juan del Sur in June: weather

San Juan del Sur, Nicaragua (Mexico & Central America). Ten-year climatology (2015-2024), not a forecast. Page: https://beaufixe.net/en/weather/sanjuandelsur/june

## Key figures

| Indicator | Value |
|---|---|
| Afternoon (mean daily max) | 29.1 °C |
| Night (mean daily min) | 24.4 °C |
| Sea (surface) | 28.9 °C |
| Rainy days (≥ 1 mm) | 27 / month |
| Relative humidity | 86 % |
| Probability of a 25 °C+ afternoon | 100 % |

## Month by month

| Month | Afternoon | Night | Sea | Rain (d) |
|---|---|---|---|---|
| January | 28.9 °C | 23.6 °C | 26.6 °C | 6 |
| February | 29.8 °C | 23.5 °C | 25.6 °C | 2 |
| March | 31.2 °C | 24 °C | 25.6 °C | 3 |
| April | 32.3 °C | 24.8 °C | 27.5 °C | 6 |
| May | 31.1 °C | 24.8 °C | 29.1 °C | 19 |
| June | 29.1 °C | 24.4 °C | 28.9 °C | 27 |
| July | 28.9 °C | 24.5 °C | 28.6 °C | 26 |
| August | 29.2 °C | 24.3 °C | 28.9 °C | 27 |
| September | 29.2 °C | 24.3 °C | 29.3 °C | 27 |
| October | 28.6 °C | 23.9 °C | 28.8 °C | 28 |
| November | 28.2 °C | 24.1 °C | 28.1 °C | 23 |
| December | 28.4 °C | 23.9 °C | 27.2 °C | 14 |

Best months : April, January, February.

## Before you go

- **Safety** : No specific restrictions. Usual precautions apply. (official advice updated 10 December 2025 — https://www.gov.uk/foreign-travel-advice/nicaragua)
- **Entry** (British passport) : No visa needed for stays of up to 90 days. Passport valid for at least 6 months. Onward ticket required; arrival tax of 10 US dollars in cash; e-cigarettes are banned and may be confiscated at the border. (per the UK Foreign Office, 10 December 2025)
- **Vaccines** : hepatitis A and hepatitis B if you are not already vaccinated; chikungunya depending on activities and areas visited. 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** : Present. Areas: Región Autónoma Atlántico Norte (RAAN) and Región Autónoma Atlántico Sur (RAAS) Rare cases in the departments of Boaco, Chinandega, Estelí, Jinotega, León, Matagalpa, Nueva Segovia, and other parts of the country No malaria transmission in Managua (the capital). Preventive medication recommended: Región Autónoma Atlántico Norte (RAAN) and Región Autónoma Atlántico Sur (RAAS): Atovaquone-proguanil, chloroquine, doxycycline, mefloquine, tafenoquine All other areas with malaria transmission: No chemoprophylaxis recommended (insect bite precautions and mosquito avoidance only) — prescribed before departure.
- **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/nicaragua)

## 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.