Portales Weather in May

The climate in Portales during May can be summarized as warm and reasonably dry.

May is in the spring in Portales and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (82°F), whilst at night 11°C (51°F) is normal.

On average May is the 5th wettest month of the year in Portales with around 40mm 1.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 11.3 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Portales in May 2025.