July weather forecast
Norwalk, CA

July exhibits true summer weather in Norwalk, with temperatures hitting an annual high of 81.5°F (27.5°C). Despite this spike, the region typically sees less cloud cover and lower relative humidity compared to the rest of the year. The number of sunshine hours remains high, leading to long balmy days. Consequently, the warm and sunny weather patterns of July prompt locals and tourists alike to indulge in water-based activities or coastal visits. The month also ends with a moderate UV index of 6, indicating a safe level for sun exposure.

Temperature

Norwalk's July reports an average high-temperature of a still moderately hot 81.5°F (27.5°C), exhibiting a minor difference from June. In July, the average low-temperature in Norwalk, California, records at an enjoyable 64°F (17.8°C) during the nights.

Heat index

July's heat index is calculated to be 84.2°F (29°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

The average relative humidity in July is 62%.

Rainfall

In Norwalk, in July, during 3.6 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. Throughout the year, there are 49.5 rainfall days, and 7.05" (179mm) of precipitation is accumulated.

Daylight

In Norwalk, the average length of the day in July is 14h and 9min.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:07 pm. On the last day of July, in Norwalk, California, sunrise is at 6:03 am and sunset at 7:53 pm PDT.

Sunshine

The months with the most sunshine in Norwalk are July and August, with an average of 12h of sunshine.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index in Norwalk, California. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 6 in July translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Boost your sun resistance with garments that are densely woven yet spacious.