Weather in Harstad in May 2025
- May is usually the driest month of the year in Harstad
Average weather
Average temperature in Harstad in May
The temperature in May is +8°C on average, with a range between a maximum of +14°C during the day and a minimum of -2°C at night.
The average maximum temperature goes up 6% by the end of the month, compared with the beginning of the month, from +5°C to +6°C.
Is Harstad warm or cold in May?
Harstad is typically cool in May.
Maximum temperatures go up compared to the previous month from +4°C to +8°C. The minimum temperature also goes up from 0°C to +4°C.
Pack a sweater and a jacket as there will be cooler temperatures.
Take a look at how May is compared to other months in Harstad:
Climate in Harstad in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +4°C | +8°C | +12°C | ||||
| Min. temperature | ||||||
| -10°C | -3°C | +2°C | ||||
| Max. temperature | ||||||
| +15°C | +24°C | +25°C | ||||
| Rainfall | ||||||
| 55 mm | 88 mm | 91 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 75% | 73% | 75% | ||||
| Air pressure | ||||||
| 1010 HPa | 1013 HPa | 1012 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 2 | ||||
| Cloudy days | ||||||
| 7 | 7 | 8 | ||||
| Rainy days | ||||||
| 9 | 19 | 21 | ||||
| Snowy days | ||||||
| 11 | 3 | 0 | ||||
May weather is still as ok as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +4°C to +8°C during the day. Prepare for more rain. Average rainfall goes from 55 mm to 88 mm. It feels drier, as humidity decreases from 75% to 73%. 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 2 sunny days during the month.
June brings much the same weather, it remains ok.
Wind
The average wind speed is 6 m/s getting up to 14 m/s which is quite strong. The wind will cause branches to move and ground debris to fly around.
The average wind speed in Harstad is gradually increasing during May, going from 4 m/s to 7 m/s over the course of the month.
Rain
Snow
Here’s how May is compared with other months in the amount of snow, total mm:
How was the weather last May in Harstad?
Climate Change over Years
The climate in Harstad in May has not changed much over the last 43 years.
The average temperature was the lowest in 1981 (+4°C) and the highest in 2011 (+7°C). The driest year was 1980 with only 570 mm of rainfall, and the wettest year was 2005 with 1322 mm.
FAQ
Is May a good time to visit Harstad?
Can you sunbathe in Harstad in May?
Is Harstad rainy in May?
Is it sunny in Harstad in May?
Other cities in Norway
Monthly weather in Harstad
Source of the data
For this page, we’ve looked at the typical weather in Harstad, 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.