Pasadena
May
Weather in Pasadena for May 2025
Your guide to Pasadena weather in May - trends and predictions
In general, the average temperature in Pasadena at the beginning of May is 20.7 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 24.4 °F by the end of May.
Pasadena experiences an exceptionally high level of rainfall in May, with more than 20 rainy days on average.
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10
Dry days
21
Rainy days
0
Snow days
22°/15°
Temperatures
18 km/h
Avg max wind
78 %
Avg humidity
Pasadena in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2  27° | 3  20° | 4  13° | |||
| 5  19° | 6  22° | 7 21° | 8  28° | 9 23° | 10  14° | 11 15° |
| 12 15° | 13 21° | 14 19° | 15 16° | 16 18° | 17 21° | 18 16° |
| 19 20° | 20 23° | 21 24° | 22 28° | 23 25° | 24 26° | 25 26° |
| 26 26° | 27  26° | 28 26° | 29 23° | 30 22° | 31 22° |
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Temperatures trend during May in Pasadena
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 | Patchy rain possible | 23° /16° | 0.7 mm | 5 | |
| May 2 | Sunny | 27° /15° | 0 mm | 7 | |
| May 3 | Partly cloudy | 20° /12° | 0.1 mm | 6 | |
| May 4 | Light drizzle | 13° /12° | 7.9 mm | 3 | |
| May 5 | Moderate rain | 19° /11° | 19.2 mm | 4 | |
| May 6 | Fog | 22° /16° | 4.4 mm | 5 | |
| May 7 | Light rain shower | 21° /17° | 4.1 mm | 5 | |
| May 8 | Patchy light rain with thunder | 28° /17° | 8.4 mm | 6 | |
| May 9 | Light rain shower | 23° /17° | 9 mm | 5 | |
| May 10 | Moderate or heavy rain with thunder | 14° /11° | 29.1 mm | 3 | |
| May 11 | Patchy rain possible | 15° /9° | 2.2 mm | 4 | |
| May 12 | Light rain shower | 15° /10° | 2.9 mm | 4 | |
| May 13 | Partly cloudy | 21° /9° | 0 mm | 6 | |
| May 14 | Light drizzle | 19° /15° | 5.1 mm | 4 | |
| May 15 | Light rain shower | 16° /15° | 18.3 mm | 4 | |
| May 16 | Patchy rain possible | 18° /14° | 0.6 mm | 4 | |
| May 17 | Patchy rain possible | 21° /13° | 0 mm | 5 | |
| May 18 | Light rain shower | 16° /14° | 14.1 mm | 4 | |
| May 19 | Patchy rain possible | 20° /13° | 0.2 mm | 5 | |
| May 20 | Patchy rain possible | 23° /14° | 0 mm | 5 | |
| May 21 | Sunny | 24° /14° | 0 mm | 6 | |
| May 22 | Patchy light rain with thunder | 28° /16° | 4.4 mm | 6 | |
| May 23 | Light rain shower | 25° /18° | 11.7 mm | 6 | |
| May 24 | Partly cloudy | 26° /17° | 0 mm | 7 | |
| May 25 | Patchy light rain with thunder | 26° /19° | 4 mm | 6 | |
| May 26 | Patchy light rain with thunder | 26° /18° | 15.5 mm | 6 | |
| May 27 | Moderate or heavy rain shower | 26° /19° | 17.2 mm | 6 | |
| May 28 | Partly cloudy | 26° /17° | 0 mm | 7 | |
| May 29 | Light rain shower | 23° /15° | 0.5 mm | 5 | |
| May 30 | Partly cloudy | 22° /14° | 0.5 mm | 6 | |
| May 31 | Sunny | 22° /13° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Pasadena 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 Pasadena forecast closer to your planned date for the most up-to-date weather information.
Pasadena in May - FAQ
What are the expected maximum and minimum temperatures in Pasadena during May?
During May, expect a variety of temperatures with highs around 22° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Pasadena during May?
Significant rainfall exceeding 179.9 mm is expected in Pasadena during May, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Pasadena during May?
The average wind speed in Pasadena during May is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
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