Month by month
| Month | Afternoon | Sea | Rain | Verdict |
|---|---|---|---|---|
| January | 28.9 °C | 26.6 °C | 6 days | Ideal — one of the best times of year |
| February | 29.8 °C | 25.6 °C | 2 days | Ideal — one of the best times of year |
| March | 31.2 °C | 25.6 °C | 3 days | Ideal — one of the best times of year |
| April | 32.3 °C | 27.5 °C | 6 days | Ideal — one of the best times of year |
| May | 31.1 °C | 29.1 °C | 19 days | Unfavourable season |
| June | 29.1 °C | 28.9 °C | 27 days | Unfavourable season |
| July | 28.9 °C | 28.6 °C | 26 days | Unfavourable season |
| August | 29.2 °C | 28.9 °C | 27 days | Unfavourable season |
| September | 29.2 °C | 29.3 °C | 27 days | Unfavourable season |
| October | 28.6 °C | 28.8 °C | 28 days | Unfavourable season |
| November | 28.2 °C | 28.1 °C | 23 days | Unfavourable season |
| December | 28.4 °C | 27.2 °C | 14 days | Ideal — one of the best times of year |
Nearby in August
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 6 months. Onward ticket required; arrival tax of 10 US dollars in cash; e-cigarettes are banned and may be confiscated at the border.
For a British passport, per the UK Foreign Office on 10 December 2025. Rules change: check before booking.
Safety
No specific restrictions
Usual precautions apply.
Official advice updated 10 December 2025
Health
CDC level 2 notice: Chikungunya
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); 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 San Juan del Sur in August?
The sea averages 28.9°C in August — yes, pleasant swimming.
How hot is San Juan del Sur in August?
Expect 29.2°C in the afternoon and 24.3°C at night, averaged over the last 10 years.
Does it rain a lot in San Juan del Sur in August?
Around 27 days with rain (≥ 1 mm) in the month — 86% of days.