The weather is generally very mild in Spain. You can check averages on the websites listed below.

Barcelona

http://www.holiday-weather.com/barcelona/averages/

Costa Brava - Blanes

http://www.holiday-weather.com/costa_brava/averages/

Barcelona is in the Central European time zone or UTC + 1:00.

1 hour ahead of the UK

6 hours ahead of the East Coast

7 hours ahead of Central Time

9 hours ahead of West Coast

Spain uses the euro (€) and the conversion rate has historically been about $1.10 to 1.00€. However, we recommend getting cash from an ATM once you arrive in Spain. No need to exchange money in your home country or carry travelers checks.

http://www.xe.com/