Temperature, probability of rain, clouds and ultraviolet rays are some of the information you need to know before leaving home. (GlobeLiveMedia/Jovani Perez)

Weather forecasts, based on observation and mathematical modelshelp predict the state of the atmosphere at a given time and place based on various relationships such as temperature, humidity, pressure, precipitation or wind.

Weather forecasting is an exercise carried out for hundreds of years, even before the Christian era, based essentially on the observation of the configuration of the clouds, the wind, the time of year, although at the beginning these they were inaccurate.

It was only with the advent of new technologies (such as computers) that mathematical models began to be implemented that allowed more accurate predictions to be made, becoming a fundamental factor for the transport (land, sea or air), agriculture, tourism, disaster prevention, public health and even military operationsbeyond deciding whether or not to carry an umbrella or whatever outfit become.

Below is the weather forecast for the next few hours in Barcelona:

the probability of rain for this Friday in Barcelona it is 9% during the day and 3% all night.

During this time, cloudiness will be 46% during the day and 25% at night.

As for temperature A high of 14 degrees and a low of 3 degrees are expected in this region. UV rays should reach a level of up to 4.

While the gusts of wind will reach 33 kilometers per hour during the day and 24 kilometers per hour at night.

    In Barcelona, ​​the maximum temperature is around 30 degrees and the minimum is below zero (Barcelona Government)
In Barcelona, ​​the maximum temperature is around 30 degrees and the minimum is below zero (Barcelona Government)

Barcelona is located in the northeast of Spain, on the Mediterranean coast of the Iberian Peninsula, where two types of climate prevail: the Continental Mediterranean there humid subtropical.

The climate Continental Mediterranean occurs mainly south of Barcelona and is characterized by mild winters there hot, dry summers.

while the Rainy season in this climatic state, it is present mainly during the winter or in the intermediate seasons.

For its part, the weather humid subtropical it occurs in the northernmost part of the region, characterized by cold or mild winters, as well as humid and hot summers.

Meanwhile, there is no rainy season as such in this climate, since well-distributed rainfall throughout the year.

According to the National Meteorological Agency (Aemet) of Spain, the Maximum temperature in Barcelona it is around 30 degrees Celsius and occurs during the months of July and August.

In the case of minimum temperature Aemet mentions that it is below zero degrees Celsius between December and January.

The months in which more rain is falling in Barcelona they are between September and October. While days with snowfall there are very few of them, no more than 10 per year on average.

    Spain is characterized as a sunny country (Reuters)
Spain is characterized as a sunny country (Reuters)

Spain is characterized by being sunny, where sunshine hours are about 3,000 hours per year. THE temperatures in this Mediterranean country are mildHowever, there are marked differences between seasons and different areas.

Although Amet records up to 13 types of climates in SpainThey are really four that predominate: oceanic, Mediterranean cool summers, Continental Mediterranean there cold steppe.

The oceanic is characterized by being temperate with cool summers, heavy rainfall and well distributed throughout the year.

In Spain, it appears mainly in northern and western Galicia, the Cantabrian Sea, the Iberian system, the northeast of the northern plateau and much of the Pyrenees, except for the highest areas.

The cool-summer Mediterranean, as its name suggests, has dry and cool summersas well as cold or mild winterswhile most the rains fall in winter or intermediate stations.

This climate covers most of the northern plateau, inland Galicia and many mountainous areas in the center and south of the peninsula. In the Canary Islands, it extends widely inside the islands of La Palma, El Hierro, La Gomera and Tenerife, as well as in the highest areas of Gran Canaria.

Continental Mediterranean records mild and rainy wintersas well as hot, dry summers.

This type of climate is present in much of the Iberian Peninsula and the Balearic Islands. It extends over most of the southern half and the Mediterranean coastal regions, with the exception of the arid areas of the south-east.

As for the cold steppe, the winters are very cold and the summers can be temperate or hotMoreover, the rainfall is rare.

This climate extends to the southeast of the peninsula, to the Ebro Valley, to the southern plateau and, to a lesser extent, to Estemadura, the Balearic Islands and the center of the northern plateau. They are also observed on all the islands of the Canary archipelago.

Spring and fall is when the the nicest weather in spainweather conditions that allow you to enjoy the outdoors practically all day.

The ace maximum temperatures are reached in July and Augustthe hottest and driest months in the whole country.

While minimum temperatures usually occur in January and Februarymonths which also coincide with days with more rainmainly in northern Spain.

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