Dear Mehrnoosh Eghtedari ,

I have used WRF and I feel you should use CDO for your problem. That will make the problem much easier than Matlab.

Some discussions have already been performed in the following thread. 

https://www.researchgate.net/post/Any_suggestions_on_converting_hourly_WRF_output_to_daily

I hope this helps.

All the best!

Hello,

I usually do these kind of tasks using CDO, R or NCO. For example if you have CDO installed on UNIX computer you can just do:

cdo daysum infile.nc outfile_daily.nc

Within R, this is easy to do using the raster package ZApply function.

Hope this helps.

All the best!

Hello,

1.install cdo on your terminal using

sudo apt-get install cdo

2. You can convert to daily data using

cdo daymean input output

or

cdo daysum input output

Ciao

Akinsanola AA Nms