# Delta in December: weather

Delta, Canada (North America). Ten-year climatology (2015-2024), not a forecast. Page: https://beaufixe.net/en/weather/delta/december

## Key figures

| Indicator | Value |
|---|---|
| Afternoon (mean daily max) | 5.8 °C |
| Night (mean daily min) | 1.7 °C |
| Sea (surface) | 8 °C |
| Rainy days (≥ 1 mm) | 20 / month |
| Relative humidity | 86 % |
| Probability of a 25 °C+ afternoon | 0 % |

## Month by month

| Month | Afternoon | Night | Sea | Rain (d) |
|---|---|---|---|---|
| January | 6.7 °C | 1.9 °C | 7.3 °C | 18 |
| February | 6.8 °C | 1.7 °C | 7.3 °C | 16 |
| March | 9.6 °C | 3.3 °C | 8.1 °C | 16 |
| April | 12.2 °C | 5.8 °C | 9.9 °C | 15 |
| May | 16.4 °C | 9.7 °C | 12.7 °C | 9 |
| June | 19.2 °C | 12.4 °C | 14.8 °C | 10 |
| July | 22.1 °C | 14.6 °C | 16.8 °C | 4 |
| August | 22.3 °C | 14.9 °C | 16.9 °C | 6 |
| September | 18.3 °C | 12.1 °C | 14.7 °C | 11 |
| October | 13.3 °C | 8.1 °C | 11.6 °C | 15 |
| November | 8.9 °C | 4.4 °C | 9.3 °C | 19 |
| December | 5.8 °C | 1.7 °C | 8 °C | 20 |

Best months : August, July, June.

## Before you go

- **Safety** : No specific restrictions. Usual precautions apply. (official advice updated 2 June 2026 — https://www.gov.uk/foreign-travel-advice/canada)
- **Entry** (British passport) : No visa, but an electronic travel authorisation (eTA) must be obtained online before departure for stays of up to 180 days. Passport valid until your return date. Apply for the eTA on the official Canadian government site only; you may be asked for a return ticket and proof of funds. (per the UK Foreign Office, 2 June 2026)
- **Vaccines** : hepatitis B if you are not already vaccinated; hepatitis A depending on activities and areas visited. 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 25 August 2026 — https://wwwnc.cdc.gov/travel/destinations/traveler/none/canada)

## 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.