August weather forecast
East Pasadena, CA

Share

Weather in August

The last month of the summer, August, is a tropical month in East Pasadena, California, with temperature in the range of an average high of 87.1°F (30.6°C) and an average low of 64.9°F (18.3°C).

Temperature

August is the month that records the highest temperatures, with averages ranging from a high of 87.1°F (30.6°C) to a low of 64.9°F (18.3°C).

Heat index

August's heat index is evaluated at a tropical 89.6°F (32°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.
Know that the heat index computations account for shaded terrains and slight winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

In August, the average relative humidity is 49%.

Rainfall

In August, the rain falls for 1.5 days. Throughout August, 0.12" (3mm) of precipitation is accumulated. In East Pasadena, during the entire year, the rain falls for 50.1 days and collects up to 8.5" (216mm) of precipitation.

Daylight

The average length of the day in August is 13h and 23min.
On the first day of the month, sunrise is at 6:04 am and sunset at 7:53 pm. On the last day of August, sunrise is at 6:25 am and sunset at 7:19 pm PDT.

Sunshine

In East Pasadena, the average sunshine in August is 12h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

Temperature records mark August as the warmest month, with highs averaging 87.1°F (30.6°C) and lows at 64.9°F (18.3°C).

How hot does it get in August?

The average high-temperature and low-temperature during August are 87.1°F (30.6°C) and 64.9°F (18.3°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 89.6°F (32°C).

What is the average humidity in August?

In East Pasadena, the average relative humidity in August is 49%.

How much does it rain in August?

In East Pasadena, in August, during 1.5 rainfall days, 0.12" (3mm) of precipitation is typically accumulated.

What is the average length of the day in August?

In August, the average day length is 13h and 23min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 6:04 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:19 pm PDT.

How long on average sun shines in August?

The average sunshine duration in August is 12h.

When is the highest UV index?

June through September, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in August?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
East Pasadena, CA

Average temperature in August - East Pasadena, CA
  • Average high temperature in August: 87.1°F

The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (46.6°F).

Average pressure in August
East Pasadena, CA

Average pressure in August - East Pasadena, CA
  • Average pressure in August: 29.89"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in August
East Pasadena, CA

Average wind speed in August - East Pasadena, CA
  • Average wind speed in August: 4.5mph

The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).

Average humidity in August
East Pasadena, CA

Average humidity in August - East Pasadena, CA
  • Average humidity in August: 49%

The month with the highest relative humidity is June (58%).
The month with the lowest relative humidity is November (47%).

Average rainfall in August
East Pasadena, CA

Average rainfall in August - East Pasadena, CA
  • Average rainfall in August: 0.12"

The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in August
East Pasadena, CA

Average rainfall days in August - East Pasadena, CA
  • Average rainfall days in August: 1.5 days

The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is June (1.1 days).

Average daylight in August /
Average sunshine in August
East Pasadena, CA

Average daylight in August / Average sunshine in August - East Pasadena, CA
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in August: 12h and 0min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).

Average sunshine days in August
East Pasadena, CA

Average sunshine days in August - East Pasadena, CA
  • Average sunshine days in August: 27.2 days

The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is February (21.5 days).

Average UV index in August
East Pasadena, CA

Average UV index in August - East Pasadena, CA
  • Average UV index in August: 6

The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in August
East Pasadena, CA

Average cloud cover in August - East Pasadena, CA
  • Average cloud cover in August: 5

The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in August
East Pasadena, CA

Average visibility in August - East Pasadena, 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).

East Pasadena, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location