Portsmouth
January
Weather in Portsmouth for January 2027
Your guide to Portsmouth weather in January - trends and predictions
In general, the average temperature in Portsmouth at the beginning of January is 7.9 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 8.3 °C by the end of January.
The climate of Portsmouth in January is notably wet, with an average of 15 rainy days, and a total of 104.4 mm of precipitation.
Is January a good time to visit Portsmouth? check out the best time to travel to Portsmouth page.
✨ Is January a good time to visit Portsmouth? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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16
Dry days
15
Rainy days
0
Snow days
8°/4°
Temperatures
34 km/h
Avg max wind
81 %
Avg humidity
Portsmouth Weather January
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Temperatures trend during January in Portsmouth
See the weather trend as well as the moving average line
January weather in Portsmouth day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Jan. |  Light rain | 10° /6° | 6.7 mm | 0 cm | |
| 2 Jan. | Light rain | 8° /4° | 2.8 mm | 0 cm | |
| 3 Jan. | Light rain | 7° /5° | 3.7 mm | 0 cm | |
| 4 Jan. | Light rain | 7° /5° | 5.7 mm | 0 cm | |
| 5 Jan. | Light rain | 8° /5° | 4.3 mm | 0 cm | |
| 6 Jan. |  Patchy rain possible | 9° /4° | 2.1 mm | 0 cm | |
| 7 Jan. |  Heavy rain at times | 7° /4° | 5.4 mm | 0 cm | |
| 8 Jan. | Heavy rain at times | 6° /4° | 7 mm | 0.2 cm | |
| 9 Jan. |  Overcast | 6° /3° | 0.8 mm | 0.1 cm | |
| 10 Jan. | Light rain | 6° /3° | 4.4 mm | 0 cm | |
| 11 Jan. | Patchy rain possible | 7° /3° | 1.9 mm | 0 cm | |
| 12 Jan. | Light rain | 9° /6° | 2.9 mm | 0 cm | |
| 13 Jan. | Light rain | 8° /5° | 3.3 mm | 0 cm | |
| 14 Jan. |  Moderate or heavy rain shower | 8° /5° | 5 mm | 0 cm | |
| 15 Jan. | Light rain | 7° /4° | 5.7 mm | 0 cm | |
| 16 Jan. | Light rain | 7° /4° | 4.1 mm | 0 cm | |
| 17 Jan. | Patchy rain possible | 6° /3° | 1.3 mm | 0.5 cm | |
| 18 Jan. |  Sunny | 6° /3° | 0.4 mm | 0 cm | |
| 19 Jan. | Sunny | 6° /3° | 0.3 mm | 0 cm | |
| 20 Jan. | Overcast | 7° /5° | 0.1 mm | 0 cm | |
| 21 Jan. | Light rain | 8° /4° | 2.9 mm | 0 cm | |
| 22 Jan. | Light rain shower | 8° /5° | 2.3 mm | 0 cm | |
| 23 Jan. | Light rain | 8° /4° | 3 mm | 0 cm | |
| 24 Jan. | Patchy rain possible | 9° /6° | 2.2 mm | 0 cm | |
| 25 Jan. | Light rain | 8° /5° | 3.5 mm | 0 cm | |
| 26 Jan. | Light rain | 9° /5° | 5.6 mm | 0 cm | |
| 27 Jan. | Light rain | 8° /5° | 5.3 mm | 0 cm | |
| 28 Jan. | Light rain shower | 8° /6° | 1.6 mm | 0 cm | |
| 29 Jan. | Light rain | 9° /6° | 5 mm | 0 cm | |
| 30 Jan. | Light rain | 9° /5° | 2.7 mm | 0 cm | |
| 31 Jan. | Patchy rain possible | 9° /5° | 2.4 mm | 0 cm | |
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Important Notice
Our weather forecast for Portsmouth in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Portsmouth forecast closer to your planned date for the most up-to-date weather information.
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Portsmouth in January - FAQ
What are the expected maximum and minimum temperatures in Portsmouth during January?
Prepare for cooler days with highs just around 8° and colder nights, dipping below 4°.
How much rainfall should be expected in Portsmouth during January?
Significant rainfall exceeding 104.4 mm is expected in Portsmouth during January, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Portsmouth in January 2027?
Portsmouth typically sees 0.7 cm of snowfall during January.
What are the typical wind conditions in Portsmouth during January?
The average wind speed in Portsmouth during January is 34 km/h, suggesting breezy to windy conditions, depending on your activities.
Portsmouth snow forecast January 2027
Track daily snowfall levels and discover Portsmouth’s snowy potential this January ❄️
January rainfall patterns in Portsmouth
Explore the daily rainfall trends and prepare for Portsmouths January weather 💧
Typically, Portsmouth has 15 rainy days in January with a total of 104.4 mm of rainfall.
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