When to go · Monmouth
Monmouth in December
Mixed month. Outside the best window (May–Sep). Across United Kingdom: Christmas markets and shows; transport stops on the 25th and hotels spike around New Year.
Key facts
- Verdict
- Mixed
- Temperature
- 8°C (46°F)46°F (8°C) / 3°C (37°F)37°F (3°C)
- average high / low
- Rain days
- 14
- Crowds
- Medium
- United Kingdom overall
- Prices
- High
- United Kingdom overall
Verdict
Outside the best window (May–Sep). Across United Kingdom: Christmas markets and shows; transport stops on the 25th and hotels spike around New Year.
Is another month better than December?
December is rated mixed. These months rate higher:
Weather in December
- MonmouthHighs around 8 °C (46 °F), lows around 3 °C (37 °F), rain on about 14 daysHighs around 46 °F (8 °C), lows around 37 °F (3 °C), rain on about 14 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Christmas Day and Boxing Day (substitute 28 Dec) big impact
25–28 Dec 2026 · United Kingdom
No trains or Tube on Christmas Day; reduced service on Boxing Day; most shops and sights closed on the 25th.
Crowds and prices
- Crowds · United Kingdom overall
- Medium
- Prices · United Kingdom overall
- High
United Kingdom overall: Christmas markets and shows; transport stops on the 25th and hotels spike around New Year.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Monmouth, side by side.
Verdict
Dec: Mixed
May: Great (better)
Daytime high
Dec: 8 °C (46 °F)46 °F (8 °C)
May: 17 °C (63 °F)63 °F (17 °C)
Night low
Dec: 3 °C (37 °F)37 °F (3 °C)
May: 8 °C (46 °F)46 °F (8 °C)
Rain days
Dec: 14
May: 11 (better)
Crowds
Dec: Medium
May: Medium
Prices
Dec: High
May: Medium
Festivals listed
Dec: 1
May: 0
December: Outside the best window (May–Sep). Across United Kingdom: Christmas markets and shows; transport stops on the 25th and hotels spike around New Year.
May: Inside Monmouth's best window: May–Sep.
Monmouth: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm coat, hat and gloves for mornings and evenings
- A rain jacket or umbrella and shoes that dry fast