Yes
you do need a jacket based on the weather in Letterkenny, Co. Donegal, Ireland 1 second ago
Why? Because it's cool enough your breath is visible, but your nose isn’t red yet!
47°F8°C & Mostly Cloudy
Wind is 2 mph4 km/h from the Southwest, gusting to 4 mph6 km/h
| September 19 | ||||
| 11pm | 46°F8°C | 3 mph5 km/h West | Mostly Cloudy | |
| September 20 | ||||
| 12am | 47°F8°C | 3 mph5 km/h West | Mostly Cloudy | |
| 1am | 47°F8°C | 3 mph4 km/h West | Partly Cloudy | |
| 2am | 48°F9°C | 3 mph5 km/h Northwest | Mostly Cloudy | |
| 3am | 50°F10°C | 4 mph6 km/h Northwest | Mostly Cloudy | |
| 4am | 52°F11°C | 7 mph11 km/h North | Drizzle | |
| 5am | 53°F12°C | 10 mph16 km/h North | Drizzle | |
| 6am | 54°F12°C | 12 mph20 km/h North | Cloudy | |
| 7am | 54°F12°C | 14 mph23 km/h North | Cloudy | |
| 8am | 55°F13°C | 15 mph24 km/h North | Cloudy | |
| 9am | 55°F13°C | 16 mph25 km/h North | Windy | |
| 10am | 55°F13°C | 17 mph27 km/h North | Windy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 19 | 46°F8°C | 55°F13°C | 13 mph21 km/h from North | Drizzle | Partly Cloudy |
| September 20 | 45°F7°C | 54°F12°C | 12 mph19 km/h from North | Mostly Cloudy | Partly Cloudy |
| September 21 | 40°F4°C | 56°F13°C | 5 mph8 km/h from Northwest | Mostly Cloudy | Partly Cloudy |
| September 22 | 41°F5°C | 57°F14°C | 5 mph8 km/h from South | Partly Cloudy | Mostly Cloudy |
| September 23 | 43°F6°C | 59°F15°C | 10 mph16 km/h from South | Mostly Cloudy | Mostly Cloudy |
| September 24 | 47°F9°C | 59°F15°C | 10 mph16 km/h from South | Mostly Cloudy | Mostly Cloudy |
| September 25 | 49°F9°C | 60°F16°C | 16 mph25 km/h from South | Windy | Mostly Cloudy |
Yes
Low of 45°F7°C, High of 55°F13°CWind: 12 mph19 km/h
Precipitation: 25% rain