Simi Valley and its surrounding mountains

Weather · May

Simi Valley weather in May

Average highs of 82°F, lows of 53°F and 0.40 in of rain, from 30 years of weather records.

May is Simi Valley’s 6th warmest month, with average highs of 82°F and lows of 53°F. That is 4° warmer than April, and 0° above the yearly average high.

Average high
82°F
Average low
53°F
Precipitation
0.40 in
Wet days
2
Sunrise · sunset
5:53 AM · 7:49 PM

May across the year

  1. 70°43°Jan
  2. 70°44°Feb
  3. 74°46°Mar
  4. 78°48°Apr
  5. 82°53°May
  6. 89°57°Jun
  7. 95°61°Jul
  8. 97°61°Aug
  9. 94°59°Sep
  10. 85°53°Oct
  11. 76°46°Nov
  12. 69°42°Dec

High and low Rain

What to wear in May

  • Warm days: shorts and T-shirts, with a light layer for cooler evenings.

May is good for

Around Simi Valley

Simi Valley from Corriganville Regional Park-21755687418
Simi Valley from Corriganville Regional Park-21755687418Jeff Turner · CC BY 2.0
Simi Valley photograph by Clotee Pridgen Alloc…
Simi Valley, CA, USA (11)Clotee Pridgen Alloc… · CC BY-SA 3.0
Simi Adobe, Simi Valley
Simi Adobe, Simi ValleyLos Angeles · CC BY-SA 3.0

See Simi Valley

A look around town before you go.

May compared with the months around it

MonthHighLowRain
April78°F48°F0.80 in
May82°F53°F0.40 in
June89°F57°F0.10 in

Planning a trip? See the best time to visit Simi Valley and today’s forecast.

Questions

How hot does it get in Simi Valley in May?

Average highs are 82°F and average lows 53°F, for a daily mean of 67°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Simi Valley in May?

May averages 0.40 in of precipitation over about 2 days with at least 0.01 in. It is the 8th wettest month of the year.

What time is sunset in Simi Valley in May?

Around mid-May the sun rises about 5:53 AM and sets about 7:49 PM, for roughly 13.9 hours of daylight.

Is May a good time to visit Simi Valley?

Yes. May is one of the mildest months, with highs between 65°F and 85°F and little rain.

NOAA U.S. Climate Normals 1991–2020, Woodland Hills Pierce College station (11.3 mi from downtown). Sunrise and sunset are calculated for May 15 at the city’s coordinates.

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