# Tacna in August: weather

Tacna, Peru (South America). Ten-year climatology (2015-2024), not a forecast. Page: https://beaufixe.net/en/weather/tacna/august

## Key figures

| Indicator | Value |
|---|---|
| Afternoon (mean daily max) | 18.7 °C |
| Night (mean daily min) | 10.7 °C |
| Rainy days (≥ 1 mm) | 0 / month |
| Relative humidity | 79 % |
| Probability of a 25 °C+ afternoon | 1 % |

## Month by month

| Month | Afternoon | Night | Sea | Rain (d) |
|---|---|---|---|---|
| January | 25.9 °C | 17.3 °C | – | 4 |
| February | 26.7 °C | 18.2 °C | – | 5 |
| March | 26 °C | 17.5 °C | – | 3 |
| April | 23.8 °C | 15.2 °C | – | 0 |
| May | 21.2 °C | 13.2 °C | – | 0 |
| June | 19.1 °C | 11.9 °C | – | 0 |
| July | 18.2 °C | 10.8 °C | – | 1 |
| August | 18.7 °C | 10.7 °C | – | 0 |
| September | 19.8 °C | 11.3 °C | – | 0 |
| October | 21.1 °C | 12.1 °C | – | 0 |
| November | 22.7 °C | 13.6 °C | – | 1 |
| December | 24.3 °C | 15.4 °C | – | 2 |

Best months : February, March, January.

## Before you go

- **Safety** : Outside the areas advised against. Parts of the country are advised against (the Apurímac, Ene and Mantaro river valley (VRAEM); within 20 km south of the Colombian border (Loreto), except the Amazon River); Tacna is not one of them. (official advice updated 22 June 2026 — https://www.gov.uk/foreign-travel-advice/peru)
- **Entry** (British passport) : No visa needed for stays of up to 90 days. Passport valid for at least 6 months. Usually 90 days in a 180-day period, entry registered digitally (virtual TAM); a separate airport fee (TUUA) applies when transiting through Lima. (per the UK Foreign Office, 22 June 2026)
- **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** : Vaccine recommended for parts of the country (not recommended for the following areas west of the Andes: the region of Tumbes and designated areas of Cajamarca (west-central), Lambayeque (west-central), and Piura (west). Vaccine is not recommended for travel limited to areas >2,300 m (7,550 ft) elevation, areas west of the Andes not listed above, the city of Lima (the capital), and the highland tourist areas (the city of Cusco, the Inca Trail, and Machu Picchu)). No entry requirement.
- **Malaria** : Present. Areas: All areas of the country <2,500 m (<8,200 ft) elevation east of the Andes, including the cities of Iquitos and Puerto Maldonado Rare cases in Tumbes and Piura regions No malaria transmission in the following areas: Lima Province; the cities of Arequipa, Ica, Moquegua, Nazca, Puno, or Tacna; the highland tourist areas (the city of Cusco, Machu Picchu, Lake Titicaca); along the central and southern Pacific Coast. Preventive medication recommended: Areas <2,500m (<8,200 ft) elevation east of the Andes (see map): Atovaquone-proguanil, doxycycline, mefloquine, tafenoquine All other areas with malaria transmission (see map): 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/peru)

## 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.