September Weather in San Javier, Spain - 2025

San Javier is a small town a in the province of Murcia. It is situated at the northern end of Murcia's coastline, the Costa Cálida. This modern-looking town has a beautiful seafront and it holds on to its fishing heritage. The vast and unspoiled beaches are enclosed by a 21 km (13 Miles) long sandspit, the La Manga del Mar Menor creating unique bathing conditions with warm, shallow water. The town has an interesting history. It arose around a shrine that was built at the beginning of the 17th century and dedicated to the Apostle San Francisco Javier. Tourism and agriculture are principal drivers of economy. There are many water sports and leisure opportunities for visitors who choose to come to visit.

September weather in San Javier Spain

To get a good overview of the type of weather you can expect in September in San Javier, we will look at the day and night temperature, minimum and maximum water temperature, and if September is comfortable or humid

Generally, September in San Javier will be really nice. Historical data shows that you can expect an average temperature of around 84°F / 29°C. As the humidty is low, it will feel very comfortable. During the night, it will cool down to around 64°F / 18°C.

San Javier does not have a lot of rainy days in September. You can expect around 3 rainy days, with on average 0.4 inches / 10 mm of rain during the whole month.

September weather in San Javier Spain in more detail

To get a better feeling for the type of weather, you can expect in September in San Javier, we will look at the temperature, rain, wind, humidity, water temperature, and sun and clouds

- What will the temperature be in San Javier in September

Generally, you can expect in September an average temperature of 84°F / 29°C during the day and an average of 64°F / 18°C during the night. In September, during the warmest part of the afternoon, the temperature can often get as high as 95°F / 35°C, and at the end of the night, it can get as low as 57°F / 14°C.

When looking at the whole year, January is the coldest month, with an average temperature of around 60°F / 16°C. August is the hottest month, with an average temperature of around 91°F / 33°C. When comparing September with the temperature in the month before and after, this is slightly lower than August, which sees an average maximum temperature of around 91°F / 33°C. And slightly more than October, which sees an average maximum temperature of around 77°F / 25°C.

But average temperatures only tell half of the story. It is also good to check the maximum and minimum temperatures. When looking at the whole year, August is the hottest month, with a temperature of around 100°F / 38°C. January is the coldest month, with a temperature of around 69°F / 21°C. When comparing September with the temperature in the month before and after, this is slightly lower than August, which sees an average maximum temperature of around 100°F / 38°C. And slightly more than October, which sees an average maximum temperature of around 87°F / 31°C.

In the following graph, you can see how many cold and hot days you can expect in San Javier each month:

- Can you expect rain in September in San Javier?

Generally, you can expect about 3 rain days in September, with on average 0.4 inches / 10 mm of rain.

When looking at the whole year, July is the dryest month, with an average rainfall of around 0 inches / 1 mmmm. November is the wettest month, with an average rainfall of around 0.9 inches / 22 mmmm. When comparing September with the month before and after, this is more than August, which sees around 0.1 inches / 2 mm of rain. And less than October, which sees around 0.6 inches / 16 mm of rain

If we look at the number of days with rain, July is the month with the least amount of rain days with an average of between 0 and 1 days. February is the month with the most rain days with an average of between 4 and 5 days. When comparing September with the month before and after, this is almost equal to August, which sees an average of between 1 and 2 days of rain. And almost equal to October, which sees an average of between 4 and 5 days of rain

- What will the water temperature be in San Javier for September

You can expect in September, the water temperature for San Javier to be between 80°F / 27°C and 73°F / 23°C.

To compare the water temperature we will use the maximum water temperature. You can expect this temperature on a more sunny day, close to the shore, when the wind does not mix the relatively warmer and colder water.

August has the highest water temperature, with around 80°F / 27°C. February has the lowest water temperature, with an average of between 59°F / 15°C and 60°F / 16°C. When comparing the water temperature from September with the month before and after, September has a water temperature almost equal to August, with a water temperature of around 80°F / 27°C. And slightly more than the water temperature from October, that is an average of between 75°F / 24°C and 77°F / 25°C.

- Can you expect in September a lot of sunny days in San Javier

Generally, you can expect around 9 sunny days in September and around 19 partly sunny days. The remaining days will be cloudy.

When looking at the whole year, January is the month with the highest number of sunny days, with around 12 sunny days. July is the month with the lowest number of sunny days, with around 6 sunny days. When comparing September with the number of sunny days in the month before and after, it is almost equal to August, with an average of between 7 and 8 sunny days. And almost equal to October, with around 10 sunny days

We have looked at the sunny days in San Javier. Let's also look at the cloudy or overcast days. January and December And are the months with the higest number of cloudy days, with an average of between 7 and 8 cloudy days. July is the month with the lowest number of cloudy days, with an average of between 0 and 1 cloudy days. When comparing September with the number of cloudy days in the month before and after, it is almost equal to August, with around 1 cloudy day. And almost equal to October, with an average of between 4 and 5 cloudy days

- Will it be comfortable in September in San Javier?

Generally, September in San Javier will have a low humidty, and will feel very comfortable.

We use the humidity and temperature in San Javier to calculate the Wintersun Expert Comfort level for each month. The lower the Wintersun Expert Comfort level, the more comfortable it will be. Only for certain people, extremely dry air can feel slightly uncomfortable.

When looking at the whole year, January has the lowest humidity, with a Wintersun Expert comfort level of "comfortable" (very dry air). July has the highest humidity, with a Wintersun Expert comfort level of "slightly uncomfortable" (moderately humid). When comparing September with the month before and after, this is slightly less than August, which has a Wintersun Comfort level of "comfortable" (not very humid). And more than October, which has a Wintersun Comfort level of "very comfortable" (dry air)

What to do in San Javier Spain in September

This town is famous for its numerous surrounding beaches which are not as spoiled as some other areas and safe for water activities like sailing. Other places to visit besides the beaches in San Javier are:

• Mar Menor is a coastal saltwater lagoon in the Iberian Peninsula. It is the largest lagoon in Spain. The lagoon is separated from the Mediterranean Sea by La Manga del Mar Menor, a sandbar 22 km (14 Miles) in length.
• Mision de San Francisco Javier Vigge-Biaundo is a beautiful church named after the Apostle San Francisco Javier.
• Religious Art Museum is an interesting museum to visit for understanding the religious backgrounds and history of the region.
• The Local History Museum is the best place to learn about local history. In their displays, you can find objects that span from family, social and cultural aspects to its agricultural and fishing tradition, and not forgetting, the development in aviationas.

Is it humid in San Javier Spain in September?

A lot of people ask interested in the humidity or relative humidity for San Javier Spain in September. But the real question they want to ask is not about humidity but the amount of moisture in the air. Or better, about comfort. Will it be comfortable in September in San Javier, or will high humidity make it uncomfortable.

To answer this question, we have to look at the dew point. Relative humidity can change a lot in San Javier during the day and night, as it changes when the amount of moisture changes and, but also when the temperature changes. It is a lot less reliable for comfort. Where the dew point only varies with the amount of moisture in the air.

Looking at the dew point, we can see that for the month of September, you can expect that San Javier will have a low humidty, and will feel very comfortable.

January is the month with the most comfort. It will have very dry air, and can feel somewhat uncomfortable for some people. But will be fine for most.. July is the most uncomfortable month. It will be moderately humid, and can feel slightly uncomfortable for some. In the graph, you can see that there is a significant difference between the most comfortable and most uncomfortable months

Is September a good time to go to San Javier Spain?

Trying to answer the question of whether September is a good time to go to San Javier is not as easy as it first seems. Some people like colder weather, and others prefer a warmer climate. Some are fine with some humidity, and others are not. If your location has air conditioning, the night temperature is less important.

These are some examples. I will try to answer the question with a more generic person in mind. The more detailed information in this article should be enough to check further if this applies to you as well.

If we look at the average temperature for San Javier in September, we can see that it will be fine for most people. In September, you can expect it to be really nice, with an average temperature of around 84°F / 29°C. As the humidty is low, it will feel very comfortable. During the night, it will be around 64°F / 18°C.

As the number of overcast days is not high, you can enjoy the sun with around 9 sunny days and 19 partly sunny days.

The last aspect we will look at is rain. You can expect around 3 rainy days, with on average 0.4 inches / 10 mm of rain during September. If it were more than five days, the location would be slightly less attractive for a shorter stay.

We have looked at the average day temperature, the night temperature, humidity, the number of overcast days, and the rain. We think that September a good time to go to San Javier Spain for most visitors.

Does it rain all day in San Javier Spain in September?

In San Javier, it does not rain all day in September. You can expect around 3 rainy days, with on average 0.4 inches / 10 mm of rain during the month.

Another way of looking at the rain is the number of sunny days. For San Javier Spain, there are, on average 9 sunny days and 19 partly sunny days in September. That clearly shows that it is not raining all the time.

Is September the rainiest month in San Javier Spain?

September is not the month with the most rainy days, and not the month with the most rain.

To answer what the rainiest month is in San Javier, we will both look at the month with the most rain, and the month with the highest number of rainy days.

February is the month with the the highest number of rainiest days. On average, you can expect 5 days with rain. July is the month with the lowest number of rainy days, with aproximately 1 day.

February is the month with the most rain. This is not equal as the one with the most rainy days. On average, you can expect 0.9 inches / 22 mm of rain. July is the month with the least amount of rain. This is not the same month as the one with the lowest number of rainy days. You can expect approximately 0 inches / 1 mm of rain.

Is September the most sunniest month in San Javier Spain?

September is not the month with the most sunny days, not the month with the most partly sunny days, and it is not the month with the lowest number of overcast days.

To answer what the sunniest month is in San Javier, we will of course look at the month with the most sunniest days, but also look at the month with the biggest number of days that are sunny or partly sunny.

January is the month with the highest number of sunny days. On average, you can expect 9 sunny days, and 19 partly suny days. July is the month with the lowest number of sunny days.

July is the month with the highest number of sunny days and partly sunny days combined. While February is the month with the lowest number of sunny days and partly sunny days combined.

The last thing we will look at is the number of overcast days. July is the month with the lowest number of overcast days. While January and December are months with the highest number of overcast days.

More information about San Javier Spain

Weather in San Javier Spain in other months

• Weather in San Javier Spain for January
• Weather in San Javier Spain for February
• Weather in San Javier Spain for March
• Weather in San Javier Spain for April
• Weather in San Javier Spain for May
• Weather in San Javier Spain for June
• Weather in San Javier Spain for July
• Weather in San Javier Spain for August
• Weather in San Javier Spain for October
• Weather in San Javier Spain for November
• Weather in San Javier Spain for December

What to do in San Javier Spain for each month

• What to do in January in San Javier Spain
• What to do in February in San Javier Spain
• What to do in March in San Javier Spain
• What to do in April in San Javier Spain
• What to do in May in San Javier Spain
• What to do in June in San Javier Spain
• What to do in July in San Javier Spain
• What to do in August in San Javier Spain
• What to do in September in San Javier Spain
• What to do in October in San Javier Spain
• What to do in November in San Javier Spain
• What to do in December in San Javier Spain