For solar spectral irradiance (W/m^2-nm), I use SMARTS from NREL:  http://www.nrel.gov/rredc/smarts/.  This is a command line program that generates a text file with the spectral irradiance depending on location, date/time, aerosol content of the atmosphere, etc.  You may integrate the spectral irradiance for an integrated value.

For weather data, I have used the Global Hourly Data (legacy) from the National Climatic Center: http://www.ncdc.noaa.gov/cdo-web/datasets  These datasets are based on observations.  Some are incomplete.  I hope this helps.

for wind speed and temperature data you could see the below website:

http://www.wunderground.com/history/

You have multiple options:

1. Using weather stations and, if necessary, interpolate them. For example, for temperature you can use E-OBS dataset (freely available for research)

2. For solar radiation you can use satellite data (e.g. CM-SAF satellites)

3. You can interpolate (downscale) global reanalysis data (e.g. ERA-INTERIM, CSFR, MERRA)

In all the cases you have a certain amount of uncertainty but there are many scientific works that can give you a hint about the best datasets and methodologies. 

Betterway you may collect the data from CWET Chennai,,,,

Many of wind site assessment in India by CWET has been carried out and I am sure they will provide you by nominal fees for research. Best of Luck

My favorite is US Department of Energy's website. Combined data i.e. wind, insolation, humidity etc. is compiled into single file. It can be directly used with the SAM software. 

I strongly suggest to check it out.

http://apps1.eere.energy.gov/buildings/energyplus/weatherdata_about.cfm

i hope also to know for Egypt this data

For the United States, Typical Meteorological Year (TMY) data files can be obtained from the National Renewable Energy Laboratory (NREL). To obtain the files, I suggest you contact Ibrahim Reda at NREL.

From Retscreen software

Another option is NASA: Surface meteorology and Solar Energy (NASA-SSE). Here you can find beyond your expectation...

Just create a username n password

https://eosweb.larc.nasa.gov/cgi-bin/sse/[email protected]+s01#s01

National Renewable Energy Laboratory (NREL):

Through this link anyone could get for solar data.

http://rredc.nrel.gov/solar/calculators/pvwatts/version1/

This is a vast question! There are many possible sources of data, from ground observations to satellite-derived data and reanalysis. What region are you interested in?

For Europe, Asia and Africa data for solar irradiation are available on Photovoltaic Geographical Information System (PVGIS). There is an interactive map.

http://re.jrc.ec.europa.eu/pvgis/

For solar spectral irradiance (W/m^2-nm), I use SMARTS from NREL:  http://www.nrel.gov/rredc/smarts/.  This is a command line program that generates a text file with the spectral irradiance depending on location, date/time, aerosol content of the atmosphere, etc.  You may integrate the spectral irradiance for an integrated value.

For weather data, I have used the Global Hourly Data (legacy) from the National Climatic Center: http://www.ncdc.noaa.gov/cdo-web/datasets  These datasets are based on observations.  Some are incomplete.  I hope this helps.

Juan, I think SMARTS (which I developed, by the way) is overkill in this context, since it is spectral and only for clear-sky conditions.

Anyway, I figured that the original post refers to applications in India, most likely. Modeled data can be obtained from

http://www.nrel.gov/international/ra_india.html

and measured data from

http://cwet.res.in/web/html/departments_srra.html

Oher Opcion  maybe You can also use the Meteonorm software and database to generate weather.

Att

Juan

Dear Suresh,

I hope you are interested in having the information of Tamilnadu or may be in particular the data of "Vellore" city. If my guess is not wrong you can contact the "Meterological centre" Chennai and collect all the information.

Check out the following link: http://www.imdchennai.gov.in/climate/vellore2.htm

You can get average solar data from weather data bases or calculate it using equations. However it is recommended to have average temperature and wind data from Met station. good luck

Mr. Nandana

how i can get from Met station my data

Thanks a lot

You can use MODIS data. To gain more information about these products, you can refer to the following publication: 

Article Investigation and validation of MODIS SST in the northern Persian Gulf

You can download RETScreen Expert.

http://www.nrcan.gc.ca/energy/software-tools/7465

Thanks for providing sufficient datasets

it is easy

open this link to get all wind and solar data.

https://midcdmz.nrel.gov/ecsu/

@seyed: wrong link

How we will get hourly solar irradiance data of Vadodara city, Gujarat, India

you need to consult nearest IMD centre

The Solcast API provides solar irradiance data for all continents except Antarctica, and offers free data for public research use.

https://solcast.com.au/

Our team have made this type of data freely available via our API, its very easy! Get FREE access to solar radiation data for researchers like yourself via Solcast. Read more at:

https://articles.solcast.com.au/solar-data-api/free-access-to-solar-irradiance-data-for-non-commercial-research-use

And

http://solcast.com.au

You'll be able to find solar radiation data for your location, plus anywhere else in the world.

Simply just use HOMER to generate your hourly solar, wind and temperature data.

You can follow the link below

http://usersupport.homerenergy.com/customer/en/portal/articles/2354069-export-homer-s-resource-data

But it doesn't replicate the real time analysis..it can be used for ideal study purpose

First of all for PV:

http://www.windandsun.co.uk/information/solar-power/calculating-pv.aspx#pvtools

http://re.jrc.ec.europa.eu/pvgis/apps4/pvest.php

(has calculus for stand-still X and X-Y axes trackers solar panels)

Might be useful:

http://www.renewable-energy-industry.com/energy-maps

and here is a lot of web-pages you can look through:

https://www.irena.org/documentdownloads/publications/ga_booklet_web.pdf

Something by NASA:

https://openei.org/apps/SWERA//

https://openei.org/wiki/Latvia

If you are more interested in actual weather (wind speeds offshore/onshore):

https://www.ventusky.com/

If you more up to data bases (have to make an account and they grant you an access to data bases and data analysis, JSON support):

https://www.windguru.cz/53

DTU materials on topic with roses of winds etc.

http://orbit.dtu.dk/files/112135732/European_Wind_Atlas.pdf

Really good and useful interactive maps:

https://globalsolaratlas.info/

https://energydata.info/

https://globalwindatlas.info/

A good course (at least on the first glance) on Wind energy by Coursera

https://www.coursera.org/learn/wind-for-renewable-energies

You may wish get into solar energy my suggestions are:

https://online-learning.tudelft.nl/courses/solar-energy/

https://www.edx.org/course/solar-energy

P.S. Or you can ask colleague two floors above you =)

If you are looking for Solar irradiance and wind speed data, it will depend on the particular location. For an example in india you may find this data at

https://mnre.gov.in/india-solar-resource-maps

and for others, you may find here

https://www.nrel.gov/grid/solar-resource/smarts.html

You can use meteonorm Software

Dear Ali Al-Jubainawi , unfortunately Meteonorm software isn't free and only a Demo is available for free use. Thank you

We've already had 155 researchers and students from around the world register for FREE Solcast solar radiation data (Normal, Diffuse, Global): https://solcast.com.au/solar-data-api/free-solar-radiation-historical-and-forecasting-data-for-researchers/

If your region of interest is within the PVGIS domain, it could well be your best bet:

http://re.jrc.ec.europa.eu/pvg_tools/en/tools.html

In the PVGIS database, you will find hourly, daily and monthly data of solar radiation and temperature for the desired location. See the following link:

http://re.jrc.ec.europa.eu/pvg_tools/en/tools.html

Good luck

You can find the hourly, daily and monthly data of solar radiation and meteorological data for the desired location from database of the SoDa Service.

You can follow the link below :

www.soda-is.com

The NASA surface meteorology and solar energy (https://data.nasa.gov/Earth-Science/Surface-Meteorology-and-Solar-Energy/wn3p-qsan), and the NASA power data sets (https://power.larc.nasa.gov/) provide long term averaged values of many meteorological parameters.

You can find all data about any area on earth using Homer software

From NASA database