# Miami in December: weather

Miami, United States (North America). Ten-year climatology (2015-2024), not a forecast. Page: https://beaufixe.net/en/weather/miami/december

## Key figures

| Indicator | Value |
|---|---|
| Afternoon (mean daily max) | 25.1 °C |
| Night (mean daily min) | 19.6 °C |
| Sea (surface) | 26 °C |
| Rainy days (≥ 1 mm) | 11 / month |
| Relative humidity | 75 % |
| Probability of a 25 °C+ afternoon | 61 % |

## Month by month

| Month | Afternoon | Night | Sea | Rain (d) |
|---|---|---|---|---|
| January | 23.8 °C | 17.4 °C | 25.1 °C | 11 |
| February | 24.9 °C | 19.1 °C | 24.9 °C | 11 |
| March | 26.4 °C | 20.2 °C | 25.4 °C | 10 |
| April | 27.7 °C | 21.9 °C | 26.2 °C | 12 |
| May | 28.8 °C | 23.3 °C | 27.5 °C | 16 |
| June | 29.6 °C | 24.8 °C | 28.7 °C | 22 |
| July | 30.8 °C | 25.8 °C | 29.9 °C | 22 |
| August | 30.8 °C | 25.9 °C | 30.2 °C | 25 |
| September | 30.1 °C | 25.1 °C | 29.7 °C | 24 |
| October | 28.5 °C | 23.9 °C | 28.6 °C | 19 |
| November | 26.8 °C | 21.6 °C | 27.3 °C | 13 |
| December | 25.1 °C | 19.6 °C | 26 °C | 11 |

Best months : April, March, May.

## Before you go

- **Safety** : No specific restrictions. Usual precautions apply. (official advice updated 18 August 2026 — https://www.gov.uk/foreign-travel-advice/usa)
- **Entry** (British passport) : No visa, but an electronic travel authorisation (ESTA) must be obtained online before departure. Passport valid until your return date. Apply for ESTA on the official website or app; not available if you visited Cuba since 2021 or Iran, Iraq, Libya, North Korea, Somalia, Sudan, Syria or Yemen. (per the UK Foreign Office, 18 August 2026)
- **Vaccines** : Routine vaccines up to date (measles in particular).
- **Yellow fever** : No yellow fever locally, vaccine not recommended. No entry requirement.
- **Malaria** : None.
  (per the CDC, page reviewed 26 June 2024 — https://wwwnc.cdc.gov/travel/destinations/traveler/none/united-states)

## 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.