September weather forecast and climate
Holon, Israel

Weather in September

The first month of the autumn, September, is still a warm month in Holon, Israel, with temperature in the range of an average low of 22.9°C (73.2°F) and an average high of 29.3°C (84.7°F).
The ideal sea water temperature of 28.3°C (82.9°F) and only 2.4 rainfall days, with 2mm (0.08") of accumulated rainfall, makes September the best time for swimming and other water activities.

Temperature

In September, the average high-temperature is relatively the same as in August - a warm 29.3°C (84.7°F). In Holon, Israel, in September, the average low-temperature is 22.9°C (73.2°F).

Heat index

The average heat index is appraised at a tropical 32.6°C (90.7°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like activity, differences in body mass, height, and shape, wind, and clothing affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Holon, the average relative humidity in September is 66%.

Rainfall

January through June, September through December are months with rainfall in Holon. September is the first month it rains in Holon, Israel. Throughout September, in the average 2.4 rainfall days, it receives 2mm (0.08") of precipitation. Throughout the year, there are 69.7 rainfall days, and 203mm (7.99") of precipitation is accumulated.

Sea temperature

In September, the average sea temperature in Holon is 28.3°C (82.9°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In September, the average sunshine in Holon is 10.1h.

UV index

June through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from the exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in September in Holon?

In September, in Holon, the average high-temperature is 29.3°C (84.7°F), and the average low-temperature is 22.9°C (73.2°F). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), that represents influence of the relative humidity to air temperaure, is appraised at 32.6°C (90.7°F).

What is the average humidity in September in Holon?

In September, the average relative humidity in Holon, Israel, is 66%.

When does it start to rain in Holon?

September is the first month it rains in Holon. Throughout September, in the average 2.4 rainfall days, it receives 2mm (0.08") of precipitation.

How warm is the water in September in Holon?

In September, the average sea temperature in Holon, Israel, is 28.3°C (82.9°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Holon have in September?

The average length of the day in September in Holon, Israel, is 12.4h.

How long on average sun shines in September in Holon?

The average sunshine in September in Holon, Israel, is 10.1h.

When is the highest UV index in Holon?

Months with the highest UV index in Holon, Israel, are June through September, with an average maximum UV index of 7.

What is the UV index intensity in September in Holon?

The average daily maximum UV index in September in Holon is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Holon, Israel

Average temperature in September - Holon, Israel
  • Average high temperature in September: 29.3°C

The warmest month (with the highest average high temperature) is August (30.9°C).
The month with the lowest average high temperature is January (16.9°C).

  • Average low temperature in September: 22.9°C

The month with the highest average low temperature is August (23.9°C).
The coldest month (with the lowest average low temperature) is January (11.8°C).

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Average pressure in September
Holon, Israel

Average pressure in September - Holon, Israel
  • Average pressure in September: 1011.5mbar

The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is July (1007.3mbar).

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Average wind speed in September
Holon, Israel

Average wind speed in September - Holon, Israel
  • Average wind speed in September: 11.4km/h

The windiest month (with the highest average wind speed) is January (14.9km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).

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Average humidity in September
Holon, Israel

Average humidity in September - Holon, Israel
  • Average humidity in September: 66%

The month with the highest relative humidity is August (68%).
The month with the lowest relative humidity is November (54%).

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Average rainfall in September
Holon, Israel

Average rainfall in September - Holon, Israel
  • Average rainfall in September: 2mm

The wettest month (with the highest rainfall) is December (54mm).
The driest months (with the least rainfall) are July and August (0mm).

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Average rainfall days in September
Holon, Israel

Average rainfall days in September - Holon, Israel
  • Average rainfall days in September: 2.4 days

The month with the highest number of rainy days is January (12.3 days).
The month with the least rainy days is August (0.8 days).

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Average sea temperature in September
Holon, Israel

Average sea temperature in September - Holon, Israel
  • Average sea temperature in September: 28.3°C

The best month for swimming (with the highest average sea temperature) is August (28.7°C).
The coldest month (with the lowest average sea temperature) is February (17.7°C).

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Average daylight in September /
Average sunshine in September
Holon, Israel

Average daylight in September / Average sunshine in September - Holon, Israel
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in September: 10.1h

The month with the most sunshine is July (Average sunshine: 12.3h).
The month with the least sunshine is January (Average sunshine: 6.4h).

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Average sunshine days in September
Holon, Israel

Average sunshine days in September - Holon, Israel
  • Average sunshine days in September: 26.7 days

The month with the most sunshine days is July (30.2 days).
The month with the least sunshine days is January (17.2 days).

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Average UV index in September
Holon, Israel

Average UV index in September - Holon, Israel
  • Average UV index in September: 7

Months with the highest UV index are June, July, August and September (UV index 7).
Months with the lowest UV index are January, February and December (UV index 4).

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Average cloud cover in September
Holon, Israel

Average cloud cover in September - Holon, Israel
  • Average cloud cover in September: 8

The month with the most cloud cover is January (Cloud cover 29).
Months with the least cloud cover are June and July (Cloud cover 5).

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Average visibility in September
Holon, Israel

Average visibility in September - Holon, Israel
  • Average visibility in September: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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