Plymouth Weather in January
January in Plymouth averages 10°C (50°F) during the day and 5°C (41°F) at night. Quite a bit of rainfall is typical this month, with around 99 mm (3.9 in) on average. An umbrella is a good idea.
Rainfall in Plymouth in January
Analyzing past climate data, one can expect approximately 21 days of rain, averaging 99 mm (3.9 in). Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Plymouth in January
In January, Plymouth sees low temperatures, with highs of 10°C (50°F). Nights drop to around 5°C (41°F). January is part of winter. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. Nights drop to 5°C (41°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Plymouth in January
The month has fewer sunny days, with around 60 hours of sunshine.If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit Plymouth. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United Kingdom, check out our Plymouth's climate page.
Plymouth Temperature in January
Min Temperature
5°C (41°F)
Max Temperature
10°C (50°F)
Chance of Rain
69%
Precipitation
99 mm (3.9 in)
Rainy days
21 days
Humidity
86%
Sunshine
60 hours
Percentage Sunshine
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Plymouth typically stay consistent throughout January, with daily highs averaging around 10°C (50°F). Nights are cold, with lows around 4°C (39°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Plymouth in January
Browse day-by-day weather records for Plymouth spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Plymouth historical weather extremes in January
The extremes listed below come from historical weather data collected in Plymouth from 2000 through 2025.
- The warmest day in January was on January 18, 2007, with a maximum of 14°C (57°F).
- The coldest January day was on January 20, 2013, with a maximum of 0°C (32°F).
- The lowest overnight temperature recorded in January was -6°C (21°F) (January 7, 2009).
- The wettest day in January Plymouth was on January 1, 2003 with 35 mm (1.4 in) of precipitation.
Best Places in the United Kingdom in January
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in January →
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What to Wear in Plymouth in January
Cold weather calls for smart layering in January. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Plymouth in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United Kingdom, check out our Plymouth's climate page.
Temperature Rainfall Sunshine Humidity
See the full Plymouth climate overview or explore weather in the United Kingdom.
