No
you don't need a jacket based on the weather in Portsmouth, UK 1 second ago
66°F19°C & Mostly Clear
Wind is 5 mph8 km/h from the Southwest, gusting to 11 mph17 km/h
| May 31 | ||||
| 6am | 67°F20°C | 6 mph10 km/h Southwest | Mostly Clear | |
| 7am | 69°F21°C | 7 mph12 km/h Southwest | Partly Cloudy | |
| 8am | 70°F21°C | 10 mph15 km/h Southwest | Mostly Cloudy | |
| 9am | 70°F21°C | 11 mph18 km/h Southwest | Mostly Cloudy | |
| 10am | 70°F21°C | 12 mph20 km/h Southwest | Cloudy | |
| 11am | 68°F20°C | 13 mph21 km/h Southwest | Cloudy | |
| 12pm | 67°F19°C | 14 mph22 km/h Southwest | Cloudy | |
| 1pm | 65°F18°C | 14 mph23 km/h Southwest | Cloudy | |
| 2pm | 64°F18°C | 14 mph22 km/h Southwest | Cloudy | |
| 3pm | 62°F17°C | 14 mph22 km/h Southwest | Mostly Cloudy | |
| 4pm | 61°F16°C | 13 mph21 km/h Southwest | Mostly Cloudy | |
| 5pm | 60°F15°C | 11 mph18 km/h West | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 30 | 56°F13°C | 70°F21°C | 9 mph14 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
| May 31 | 55°F13°C | 64°F18°C | 16 mph26 km/h from Southwest | Windy | Mostly Clear |
| June 1 | 51°F11°C | 65°F18°C | 9 mph15 km/h from Southwest | Mostly Clear | Partly Cloudy |
| June 2 | 53°F12°C | 62°F17°C | 20 mph32 km/h from Southwest | Drizzle | Partly Cloudy |
| June 3 | 50°F10°C | 62°F17°C | 15 mph24 km/h from Southwest | Partly Cloudy | Mostly Cloudy |
| June 4 | 53°F11°C | 60°F16°C | 17 mph28 km/h from Southwest | Rain | Drizzle |
| June 5 | 54°F12°C | 63°F17°C | 14 mph23 km/h from West | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 55°F13°C, High of 64°F18°CWind: 16 mph26 km/h
Precipitation: None