Southampton Weather in January

During January, Southampton experiences low daytime temperatures of 9°C (48°F) and cooler nights around 4°C (39°F). As part of the winter season, expect quite a bit of rainfall. Around 77 mm (3 in) is typical.

Rainfall in Southampton in January

Historically, approximately 17 days this month are expected to have rain, averaging 77 mm (3 in). Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Southampton in January

In January, expect low temperatures in Southampton, with highs of 9°C (48°F) and lows of 4°C (39°F) at night. January is a notable month of the winter season. It stays cool throughout the day, so warm layers are a good idea from morning to evening. With overnight lows of 4°C (39°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets. On average, January has the most moderate temperatures of the year.

Sunshine in Southampton in January

This month is characterized by fewer sunny days, with about 63 hours of sunshine. It's great for those who appreciate cooler, less sunny days.

Average water temperature in January

The water sits at 10°C (50°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.

If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Southampton. Our weather planner can help you explore destinations with more pleasant weather conditions.