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Weather in San Joaquin County for May 2025

Your guide to San Joaquin County weather in May - trends and predictions
  • In general, the average temperature in San Joaquin County at the beginning of May is 19.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 28.9 °F by the end of May.

  • With an average of 2 rainy days, San Joaquin County experiences minimal rainfall in May.

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Average dry days
29
Dry days
Average rainy days
2
Rainy days
Average snowy days
0
Snow days
Average temperatures
28°/10°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
51 %
Avg humidity

San Joaquin County in May average weather

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Temperatures trend during May in San Joaquin County

See the weather trend as well as the moving average line

May weather day by day

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Date Weather Temperatures Rain UV More
May 1 Overcast
Overcast
20° /9° 0 mm 6
May 2 Moderate rain at times
Moderate rain at times
22° /10° 2 mm 6
May 3 Cloudy
Cloudy
23° /10° 0.3 mm 6
May 4 Moderate rain at times
Moderate rain at times
16° /8° 8.9 mm 4
May 5 Patchy rain possible
Patchy rain possible
18° /7° 0.4 mm 4
May 6 Moderate rain at times
Moderate rain at times
19° /8° 4.1 mm 5
May 7 Patchy rain possible
Patchy rain possible
21° /9° 0.2 mm 6
May 8 Patchy rain possible
Patchy rain possible
23° /9° 0.1 mm 6
May 9 Overcast
Overcast
26° /10° 0 mm 6
May 10 Sunny
Sunny
26° /11° 0 mm 7
May 11 Sunny
Sunny
29° /12° 0 mm 8
May 12 Sunny
Sunny
31° /13° 0 mm 8
May 13 Sunny
Sunny
32° /13° 0 mm 8
May 14 Patchy rain possible
Patchy rain possible
32° /14° 0.1 mm 8
May 15 Partly cloudy
Partly cloudy
31° /13° 0 mm 8
May 16 Cloudy
Cloudy
32° /14° 0 mm 8
May 17 Overcast
Overcast
31° /12° 0 mm 8
May 18 Sunny
Sunny
30° /12° 0 mm 8
May 19 Sunny
Sunny
30° /12° 0 mm 8
May 20 Sunny
Sunny
29° /12° 0 mm 8
May 21 Sunny
Sunny
31° /11° 0 mm 8
May 22 Sunny
Sunny
31° /12° 0 mm 8
May 23 Partly cloudy
Partly cloudy
28° /13° 0 mm 7
May 24 Sunny
Sunny
25° /11° 0 mm 6
May 25 Sunny
Sunny
26° /11° 0 mm 6
May 26 Sunny
Sunny
28° /10° 0 mm 7
May 27 Sunny
Sunny
30° /11° 0 mm 8
May 28 Patchy rain possible
Patchy rain possible
27° /12° 0.2 mm 7
May 29 Partly cloudy
Partly cloudy
29° /10° 0 mm 8
May 30 Partly cloudy
Partly cloudy
30° /12° 0 mm 8
May 31 Sunny
Sunny
32° /13° 0 mm 8
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Important Notice
Our weather forecast for San Joaquin County in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Joaquin County forecast closer to your planned date for the most up-to-date weather information.

San Joaquin County in May - FAQ

What are the expected maximum and minimum temperatures in San Joaquin County during May?
Enjoy moderate daytime temperatures of up to 28° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in San Joaquin County during May?
In May, San Joaquin County can expect light to moderate rainfall, totaling 32.2 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in San Joaquin County during May?
The average wind speed in San Joaquin County during May is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in San Joaquin County

Explore the daily rainfall trends and prepare for San Joaquin Countys May weather 💧

UV exposure in San Joaquin County during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Location coordinates Where is San Joaquin County?

Get accurate weather forecasts for San Joaquin County, located at latitude 37.958 and longitude -121.291. Stay updated with localized weather information tailored for San Joaquin County.

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