Portsmouth
October
Weather in Portsmouth for October 2025
Your guide to Portsmouth weather in October - trends and predictions
In general, the average temperature in Portsmouth at the beginning of October is 16.6 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 14.4 °C by the end of October.
Portsmouth experiences heavy rainfall in October, with over 20 rainy days and an average total precipitation 152.5 mm.
Halloween weather in Portsmouth 🎃 - See the complete forecast for Thursday, 31 October.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
8
Dry days
23
Rainy days
0
Snow days
15°/12°
Temperatures
31 km/h
Avg max wind
79 %
Avg humidity
Portsmouth in October average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  17° | 2 17° | 3  16° | 4 15° | 5 16° | ||
| 6  17° | 7  18° | 8 17° | 9 18° | 10 16° | 11 15° | 12 17° |
| 13 16° | 14 13° | 15  14° | 16 15° | 17 16° | 18  16° | 19 16° |
| 20 16° | 21 15° | 22 15° | 23 15° | 24 15° | 25 14° | 26 14° |
| 27 15° | 28 15° | 29 14° | 30 15° | 31 14° |
You can click on date
Access Portsmouth weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during October in Portsmouth
See the weather trend as well as the moving average line
October weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Oct. | Cloudy | 17° /14° | 0.1 mm | 4 | |
| 2 Oct. | Cloudy | 17° /14° | 2 mm | 4 | |
| 3 Oct. | Patchy rain possible | 16° /12° | 0.6 mm | 4 | |
| 4 Oct. | Patchy rain possible | 15° /12° | 0.1 mm | 4 | |
| 5 Oct. | Patchy rain possible | 16° /13° | 0.1 mm | 4 | |
| 6 Oct. | Partly cloudy | 17° /14° | 3.2 mm | 5 | |
| 7 Oct. | Sunny | 18° /14° | 5.3 mm | 5 | |
| 8 Oct. | Partly cloudy | 17° /15° | 4.9 mm | 5 | |
| 9 Oct. | Cloudy | 18° /13° | 1.3 mm | 5 | |
| 10 Oct. | Sunny | 16° /12° | 1.6 mm | 5 | |
| 11 Oct. | Light rain shower | 15° /11° | 3.8 mm | 4 | |
| 12 Oct. | Patchy rain possible | 17° /13° | 2.6 mm | 4 | |
| 13 Oct. | Light rain shower | 16° /10° | 9 mm | 4 | |
| 14 Oct. | Patchy rain possible | 13° /9° | 0.2 mm | 3 | |
| 15 Oct. | Overcast | 14° /9° | 0.5 mm | 4 | |
| 16 Oct. | Patchy rain possible | 15° /11° | 7.7 mm | 4 | |
| 17 Oct. | Partly cloudy | 16° /12° | 0 mm | 5 | |
| 18 Oct. | Moderate rain | 16° /13° | 7.8 mm | 4 | |
| 19 Oct. | Light rain shower | 16° /13° | 9.8 mm | 4 | |
| 20 Oct. | Light rain shower | 16° /12° | 24.4 mm | 4 | |
| 21 Oct. | Light rain shower | 15° /11° | 1.4 mm | 4 | |
| 22 Oct. | Patchy rain possible | 15° /10° | 0.9 mm | 4 | |
| 23 Oct. | Light rain shower | 15° /12° | 6.7 mm | 4 | |
| 24 Oct. | Light rain shower | 15° /12° | 7.8 mm | 4 | |
| 25 Oct. | Light rain shower | 14° /10° | 14.9 mm | 4 | |
| 26 Oct. | Light rain shower | 14° /9° | 4.5 mm | 3 | |
| 27 Oct. | Light rain shower | 15° /12° | 9.9 mm | 4 | |
| 28 Oct. | Light rain shower | 15° /13° | 6.3 mm | 4 | |
| 29 Oct. | Light rain shower | 14° /13° | 5.3 mm | 4 | |
| 30 Oct. | Light rain shower | 15° /12° | 3.4 mm | 4 | |
| 31 Oct. | Light rain shower | 14° /11° | 6.2 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Portsmouth in October 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.
Portsmouth in October - FAQ
What are the expected maximum and minimum temperatures in Portsmouth during October?
During October, expect a variety of temperatures with highs around 15° and lows near 12°, suitable for diverse activities and preferences.
How much rainfall should be expected in Portsmouth during October?
Significant rainfall exceeding 152.5 mm is expected in Portsmouth during October, occurring over more than 23 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Portsmouth during October?
The average wind speed in Portsmouth during October is 31 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in Portsmouth
Explore the daily rainfall trends and prepare for Portsmouths October weather 💧
Quick links
You are here
Where is Portsmouth?Get accurate weather forecasts for Portsmouth, located at latitude 50.799 and longitude -1.091. Stay updated with localized weather information tailored for Portsmouth.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.