# Koidu in April: weather

Koidu, Sierra Leone (Africa). Ten-year climatology (2015-2024), not a forecast. Page: https://beaufixe.net/en/weather/koidu/april

## Key figures

| Indicator | Value |
|---|---|
| Afternoon (mean daily max) | 31.9 °C |
| Night (mean daily min) | 22.9 °C |
| Rainy days (≥ 1 mm) | 18 / month |
| Relative humidity | 78 % |
| Probability of a 25 °C+ afternoon | 100 % |

## Month by month

| Month | Afternoon | Night | Sea | Rain (d) |
|---|---|---|---|---|
| January | 33.2 °C | 19.4 °C | – | 1 |
| February | 34.5 °C | 21 °C | – | 3 |
| March | 33.7 °C | 22.5 °C | – | 10 |
| April | 31.9 °C | 22.9 °C | – | 18 |
| May | 30 °C | 22.6 °C | – | 25 |
| June | 28.4 °C | 21.8 °C | – | 28 |
| July | 27 °C | 21.3 °C | – | 31 |
| August | 26.8 °C | 21.3 °C | – | 30 |
| September | 27.5 °C | 21.4 °C | – | 29 |
| October | 28.5 °C | 21.4 °C | – | 28 |
| November | 29.4 °C | 21.3 °C | – | 15 |
| December | 31.2 °C | 19.5 °C | – | 2 |

Best months : January, December, February.

## Before you go

- **Safety** : No specific restrictions. Usual precautions apply. (official advice updated 19 June 2026 — https://www.gov.uk/foreign-travel-advice/sierra-leone)
- **Entry** (British passport) : Visa issued on arrival (80 US dollars) for stays of up to 30 days. Passport valid for at least 6 months. Visa on arrival (80 US dollars, cash) or e-visa online in advance; health declaration on the Health Travel Portal within 72 hours; yellow fever certificate. (per the UK Foreign Office, 19 June 2026)
- **Vaccines** : typhoid recommended for most travellers; hepatitis A and hepatitis B if you are not already vaccinated; rabies depending on activities and areas visited. Routine vaccines up to date (measles in particular).
- **Yellow fever** : Vaccine recommended for the whole country. Vaccination certificate required on entry for all travellers.
- **Malaria** : Present. Areas: All. Preventive medication recommended: Atovaquone-proguanil, doxycycline, mefloquine, tafenoquine — prescribed before departure.
- **Mosquitoes** : dengue reported: protect yourself from bites.
  (per the CDC, page reviewed 25 August 2026 — https://wwwnc.cdc.gov/travel/destinations/traveler/none/sierra-leone)

## 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.