August weather forecast
Newcastle, CA

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Weather in August

The last month of the summer, August, is another tropical month in Newcastle, California, with temperature in the range of an average low of 60.3°F (15.7°C) and an average high of 91°F (32.8°C).

Temperature

August's presence records an average high-temperature of a still tropical 91°F (32.8°C), closely mirroring July's climate. Nighttime temperatures exhibit a substantial dip from daytime highs during August, averaging at a mild 60.3°F (15.7°C).

Humidity

In Newcastle, California, the average relative humidity in August is 39%.

Rainfall

July and August are months with the least rain in Newcastle when the rain falls for 1.1 days and typically aggregates up to 0.04" (1mm) of rain.

Snowfall

January, April through November are months without snowfall in Newcastle.

Daylight

The average length of the day in August is 13h and 38min.
On the first day of August, sunrise is at 6:06 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:35 pm PDT.

Sunshine

In Newcastle, the average sunshine in August is 12h.

UV index

In Newcastle, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. 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. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

How hot is it in Newcastle in August?

In August, in Newcastle, the average high-temperature is 91°F (32.8°C), and the average low-temperature is 60.3°F (15.7°C). In June, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 84.2°F (29°C).

What is the average humidity in August in Newcastle?

In August, the average relative humidity in Newcastle, California, is 39%.

What is the driest month in Newcastle?

The months with the least rainfall in Newcastle, California, are July and August Rain falls for 1.1 days and accumulates 0.04" (1mm) of rain.

How many days does it rain in August in Newcastle?

In Newcastle, California, in August, it is raining for 1.1 days, with typically 0.04" (1mm) of accumulated precipitation.

When it does not snow in Newcastle?

January, April through November are months without snowfall in Newcastle, California.

What is the average length of the day in August in Newcastle?

In Newcastle, the average day length in August is 13h and 38min.

When are sunrise and sunset in August in Newcastle?

On the first day of August in Newcastle, sunrise is at 6:06 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:35 pm PDT.

How long on average sun shines in August in Newcastle?

The average sunshine duration in August in Newcastle, California, is 12h.

How high is the UV index in August in Newcastle?

In Newcastle, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Newcastle, CA

Average temperature in August - Newcastle, CA
  • Average high temperature in August: 91°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (53.4°F).

  • Average low temperature in August: 60.3°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is December (39.2°F).

Average pressure in August
Newcastle, CA

Average pressure in August - Newcastle, CA
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in August
Newcastle, CA

Average wind speed in August - Newcastle, CA
  • Average wind speed in August: 4.3mph

The windiest months (with the highest average wind speed) are February and March (5.7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in August
Newcastle, CA

Average humidity in August - Newcastle, CA
  • Average humidity in August: 39%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (38%).

Average rainfall in August
Newcastle, CA

Average rainfall in August - Newcastle, CA
  • Average rainfall in August: 0.04"

The wettest month (with the highest rainfall) is March (5.63").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in August
Newcastle, CA

Average rainfall days in August - Newcastle, CA
  • Average rainfall days in August: 1.1 days

The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is July (1 days).

Average snowfall in August
Newcastle, CA

Average snowfall in August - Newcastle, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.18").
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Newcastle, CA

Average snowfall days in August - Newcastle, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).

Average daylight in August /
Average sunshine in August
Newcastle, CA

Average daylight in August / Average sunshine in August - Newcastle, CA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 12h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).

Average sunshine days in August
Newcastle, CA

Average sunshine days in August - Newcastle, CA
  • Average sunshine days in August: 29.3 days

The month with the most sunshine days is July (29.6 days).
The month with the least sunshine days is March (14.6 days).

Average UV index in August
Newcastle, CA

Average UV index in August - Newcastle, CA
  • Average UV index in August: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in August
Newcastle, CA

Average cloud cover in August - Newcastle, CA
  • Average cloud cover in August: 5

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).

Average visibility in August
Newcastle, CA

Average visibility in August - Newcastle, CA
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Newcastle, California, USA

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