Hilo in May: Weather, Average temperature and Climate
Weather in Hilo in May 2027
Average weather
Average temperature in Hilo in May
The expected average maximum temperature in May is +79°F with a maximum of +82°F and a minimum of +64°F.
The average maximum temperature goes down 10% by the end of the month, compared with the beginning of the month, from +81°F to +79°F.
Is Hilo warm or cold in May?
Hilo is typically warm in May.
Maximum temperatures go up compared to the previous month from +79°F to +81°F. The minimum temperature also goes up from +68°F to +68°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how May is compared to other months in Hilo:
Climate in Hilo in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | +79°F | +81°F | +82°F | |||
| Min. temperature | +61°F | +63°F | +63°F | |||
| Max. temperature | +88°F | +93°F | +90°F | |||
| Rainfall | 349 mm | 258 mm | 228 mm | |||
| Wind | 2 m/s | 2 m/s | 2 m/s | |||
| Humidity | 79% | 78% | 78% | |||
| Air pressure | 1017 HPa | 1017 HPa | 1017 HPa | |||
☀️ | Sunny days | 0 | 0 | 0 | ||
☁️ | Cloudy days | 1 | 2 | 1 | ||
🌧️ | Rainy days | 29 | 29 | 29 | ||
❄️ | Snowy days | 0 | 0 | 0 | ||
| Our opinion | OK | OK | OK | |||
May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +79°F to +81°F during the day. As May arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 349 mm to 258 mm. It feels drier, as humidity decreases from 79% to 78%. The average wind speed doesn’t change much during May, staying around 2 m/s. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
June brings much the same weather, it remains ok.
Wind
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Hilo is gradually increasing during May, going from 3 m/s to 3 m/s over the course of the month.
Rain
How was the weather last May in Hilo?
Climate Change Over the Years
The climate in Hilo in May has not changed that much over the last 43 years.
The average temperature was the lowest in 1999 (+79°F) and the highest in 2015 (+83°F). The driest year was 1983 with only 1515 mm of rainfall, and the wettest year was 1990 with 6234 mm.
FAQ
Is May a good time to visit Hilo?
Can you sunbathe in Hilo in May?
Is Hilo rainy in May?
Is it sunny in Hilo in May?
Other cities in USA
Monthly weather in Hilo
Source of the data
For this page, we’ve looked at the typical weather in Hilo, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
