Yes

you do need a jacket based on the weather in Reykjavík, Iceland 1 second ago

Why? Because there's a refreshing nip in the air!
49°F9°C & Cloudy

Wind is 3 mph5 km/h from the Northeast, gusting to 6 mph10 km/h
June 26
2am49°F10°C3 mph5 km/h NortheastDrizzle
3am50°F10°C3 mph5 km/h NorthDrizzle
4am50°F10°C3 mph5 km/h NorthCloudy
5am51°F11°C4 mph6 km/h NorthwestCloudy
6am51°F11°C4 mph7 km/h NorthwestCloudy
7am52°F11°C5 mph8 km/h NorthwestCloudy
8am52°F11°C5 mph8 km/h NorthwestCloudy
9am52°F11°C6 mph9 km/h NorthwestCloudy
10am52°F11°C6 mph10 km/h WestCloudy
11am52°F11°C7 mph11 km/h WestCloudy
12pm52°F11°C7 mph11 km/h WestCloudy
1pm51°F11°C6 mph10 km/h WestMostly Cloudy
DateLowHighWindDayNight
June 2549°F9°C52°F11°C5 mph9 km/h from NorthwestDrizzleDrizzle
June 2648°F9°C55°F13°C8 mph13 km/h from SoutheastDrizzleDrizzle
June 2748°F9°C55°F13°C9 mph15 km/h from NorthwestDrizzleCloudy
June 2848°F9°C54°F12°C6 mph9 km/h from NorthDrizzleMostly Cloudy
June 2946°F8°C53°F12°C7 mph11 km/h from NorthDrizzleMostly Cloudy
June 3045°F7°C53°F12°C9 mph14 km/h from NorthwestPartly CloudyMostly Clear
July 145°F7°C53°F12°C10 mph15 km/h from WestPartly CloudyPartly Cloudy

Yes

Low of 48°F9°C, High of 55°F13°C
Wind: 8 mph13 km/h
Precipitation: 51% rain

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