Weather in Java, Indonesia in September

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Visiting Java, Indonesia in September

September is one of the best months to visit Java for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

The weather in September is marginally warmer than the previous month and temperatures continue to rise slightly into October. September has average maximum temperatures of 33°C (92°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 75.2% making it sunny and pleasant most of the time. The hours of sunshine per day are 9.1hrs making the days long and bright.

September has total rainfall of 0cm (0inches) making it extremely dry with only very rare light showers. There are just 0.4 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days and rainy days are few and far between.

Sea temperatures are a very warm 27°C (81°F). September is an excellent month for swimming in Java with very comfortable temperatures for bathing all day. The sea temperature in September is marginally warmer than the previous month and temperatures continue to rise slightly into October.

Also consider visiting Java in one of the other best months of July, August, October, for the best beach weather. Also consider one of our other suggestions for September.

Can you sunbathe in Java in September?

Yes, September is a great time for sunbathing in Java.

September has average maximum temperatures of 33°C (92°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 75.2% making it sunny and pleasant most of the time. The hours of sunshine per day are 9.1hrs making the days long and bright. September has total rainfall of 0cm (0inches) making it extremely dry with only very rare light showers. There are just 0.4 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days and rainy days are few and far between.

More about September temperature and sunshine.

Can you swim in Java in September?

Yes, September is an excellent month for swimming in Java with very warm sea temperatures 27°C (81°F).

More about September sea temperatures.

Is September a good time to holiday in Java?

Yes, September is a great time for a holiday in Java.

September has average maximum temperatures of 33°C (92°F) which is very hot and perfect for sunbathing on clear days. The sunshine percentage is 75.2% making it sunny and pleasant most of the time. The hours of sunshine per day are 9.1hrs making the days long and bright. September has total rainfall of 0cm (0inches) making it extremely dry with only very rare light showers. There are just 0.4 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days and rainy days are few and far between. Sea temperatures are a very warm 27°C (81°F). September is an excellent month for swimming in Java with very comfortable temperatures for bathing all day.

More about the September temperatures and sunshine.

Is Java warm in September?

Yes, Java is very hot and perfect for sunbathing on clear days in September.

The average maximum temperature in Java in September is 33°C (92°F). The average maximum temperature is 32°C (90°) in the previous month and 35°C (95°F) in the next month.

The average temperature in Java in September is 28°C (83°F). The average temperature is 28°C (82°F) in the previous month and 30°C (85°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is Java in September?

The average day light hours per day in Java in September are 12.1. The sunshine percentage is 75.2% making it sunny and pleasant most of the time. The hours of sunshine per day are 9.1hrs making the days long and bright.

More about September sunshine.

Temperature in Java in September

The weather in September is marginally warmer than the previous month and temperatures continue to rise slightly into October. The average maximum temperature in Java in September is 33°C (92°F). The average maximum temperature is 32°C (90°F) in the previous month and 35°C (95°F) in the next month.

The average temperature in Java in September is 28°C (83°F). The average temperature is 28°C (82°F) in the previous month and 30°C (85°F) in the next month.

The average minimum temperature in Java in September is 23°C (74°F). The minimum temperature is 23°C (74°F) in the previous month and 25°C (76°F) in the next month.

Sunshine in Java in September

The days in September are marginally longer than the previous month and the days continue to get marginally longer into October. During September the average day light hours are 12.1 per day in Java. The sunshine percentage is 75.2% making it sunny and pleasant most of the time. The hours of sunshine per day are 9.1hrs making the days long and bright.

The ultraviolet index in Java in September is typically 14.4 during September. An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Java in September

The average sea water temperature in Java in September is 27°C (80.6°F) which is very warm and ideal for relaxing and swimming for the whole day. The sea temperature in September is marginally warmer than the previous month and temperatures continue to rise slightly into October.

Rainfall in Java in September

September weather is slightly drier than the previous month. September has fewer days of rain than the previous month. The average total rainfall in Java in September is 0cm (0inches) and on average there are 0.4 rainy days in September making it an extremely dry time to visit the beach.

Humidity in Java in September

The maximum dew point (an indicator of humidity) in Java in September is 22°C (72°F) which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan. The dew point is 23°C (73°F) in the previous month and 23°C (23°F) in the next month.

The average maximum relative humidity in Java in September is typically 78.1%. The maximum relative humidity is 80.8% in the previous month and 77.8% in the next month.

The average relative humidity in Java in September is typically 57.2%. The average relative humidity is 60.8% in the previous month and 56.7% in the next month.

Wind Speed in Java in September

The average maximum wind speed in Java in September is typically 23KM/H (15MPH). The average maximum wind speed is 24KM/H (15MPH) in the previous month and 25KM/H (16MPH) in the next month.

The average wind speed in Java in September is typically 8KM/H (5MPH). The average wind speed is 9KM/H (6MPH) in the previous month and 9KM/H (6MPH) in the next month.

The average wind direction in Java in September is from the West-Northwest.

Monthly Averages

Suggested Beaches in September

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Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.