No
you don't need a jacket based on the weather in Portsmouth, UK 1 second ago
65°F18°C & Mostly Cloudy
Wind is 11 mph17 km/h from the South, gusting to 19 mph30 km/h
| September 9 | ||||
| 12pm | 65°F18°C | 11 mph17 km/h South | Mostly Cloudy | |
| 1pm | 64°F18°C | 10 mph17 km/h Southeast | Mostly Cloudy | |
| 2pm | 64°F18°C | 10 mph17 km/h Southeast | Mostly Cloudy | |
| 3pm | 63°F17°C | 11 mph17 km/h Southeast | Mostly Cloudy | |
| 4pm | 62°F17°C | 12 mph19 km/h Southeast | Mostly Cloudy | |
| 5pm | 62°F17°C | 13 mph20 km/h Southeast | Cloudy | |
| 6pm | 62°F16°C | 12 mph20 km/h Southeast | Cloudy | |
| 7pm | 61°F16°C | 12 mph19 km/h Southeast | Cloudy | |
| 8pm | 61°F16°C | 12 mph19 km/h South | Cloudy | |
| 9pm | 60°F15°C | 12 mph19 km/h South | Cloudy | |
| 10pm | 59°F15°C | 14 mph22 km/h South | Cloudy | |
| 11pm | 59°F15°C | 15 mph24 km/h South | Rain | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 8 | 55°F13°C | 66°F19°C | 8 mph13 km/h from South | Mostly Cloudy | Rain |
| September 9 | 58°F15°C | 64°F18°C | 13 mph20 km/h from Southwest | Drizzle | Drizzle |
| September 10 | 56°F13°C | 63°F17°C | 18 mph30 km/h from Southwest | Drizzle | Mostly Clear |
| September 11 | 54°F12°C | 62°F17°C | 18 mph29 km/h from Southwest | Drizzle | Rain |
| September 12 | 54°F12°C | 64°F18°C | 16 mph26 km/h from West | Drizzle | Drizzle |
| September 13 | 57°F14°C | 67°F20°C | 22 mph35 km/h from Southwest | Rain | Drizzle |
| September 14 | 57°F14°C | 64°F18°C | 22 mph36 km/h from Southwest | Windy | Windy |
Yes
Low of 58°F15°C, High of 64°F18°CWind: 13 mph20 km/h
Precipitation: 79% rain