If you plan to visit Harstad in September, the weather is typically alright, with an average high temperature of +52°F during the day and approximately 2 sunny days. Expect some rainy, though, as there are typically 21 rainy days in the month and around 118 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+52°F
Avg. max. temperature
+27°F
Min.
+68°F
Max.
118 mm
Total precipitation
82%
Avg. humidity
2 m/s
Avg. wind
2 ☀️
Sunny Days
7 ⛅️
Cloudy
21 🌦
Rainy
Our opinion: Harstad has OK weather in September.
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Average temperature in Harstad in September
Here are the expected maximum, average and minimum temperatures in Harstad for September based on the historical data.
Last Year
Historical Data
Going from a maximum of +63°F during the day to a minimum of +43°F during the night, the temperature in September averages around +54°F.
The average maximum temperature goes down 9% by the end of the month, compared with the beginning of the month, from +55°F to +54°F.
Is Harstad warm or cold in September?
Harstad is typically chill in September.
Maximum temperatures go down compared to the previous month from +57°F to +52°F. The minimum temperature also goes down from +52°F to +46°F.
Pack a jumper and a jacket as there will be cooler temperatures.
Take a look at how September is compared to other months in Harstad:
Climate in Harstad in September
Harstad weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+57°F
+52°F
+43°F
Min. temperature
+37°F
+27°F
+7°F
Max. temperature
+82°F
+68°F
+61°F
Rainfall
103 mm
118 mm
113 mm
Wind
2 m/s
2 m/s
2 m/s
Humidity
81%
82%
82%
Air pressure
1010 HPa
1008 HPa
1006 HPa
Sunny days
1
2
2
Cloudy days
8
7
8
Rainy days
21
21
17
Snowy days
0
0
4
September weather is still as ok as in August.It’s getting colder in September. From +57°F in the day, the average maximum temperature lowers to +52°F.Prepare for more rain. Average rainfall goes from 103 mm to 118 mm.Humidity rises from 81% to 82%.The average wind speed doesn’t change much during September, staying around 2 m/s.The good news is there are likely to be more sunny days in September, from 1 to 2.
October brings much the same weather, it remains ok.
Wind speed in Harstad in September based on historical data.
Last Year
Historical Data
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 September, going from 2 m/s to 6 m/s over the course of the month.
Rain
Amount of rainfall in mm during September in Harstad based on historical data.
Last Year
Historical Data
Typically, there is a 87% chance of rain on an average day in September, with total rainfall of approximately 186 mm. The maximum amount of rainfall per day is around 34 mm, which is moderate rain.September is a pretty wet month with over 26 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
September is one of the rainiest months in Harstad, here is a comparison with other months, total mm:
Harstad wettest month is September, where a typical day has a 70% chance of precipitation and 118 mm of rainfall per day. March, on the other hand, is the driest month with a mere 13% chance of precipitation and 51 mm of rainfall per day.
How was the weather last September in Harstad?
This is the weather in Harstad in September 2023:
1 September
☁️
+56°F
2 September
☁️
+57°F
3 September
☁️
+56°F
4 September
🌧️
+54°F
5 September
🌧️
+50°F
6 September
☁️
+53°F
7 September
☁️
+56°F
8 September
🌧️
+61°F
9 September
🌧️
+63°F
10 September
🌧️
+62°F
11 September
☁️
+54°F
12 September
🌧️
+52°F
13 September
🌧️
+47°F
14 September
🌧️
+47°F
15 September
☁️
+51°F
16 September
🌧️
+50°F
17 September
🌧️
+48°F
18 September
☁️
+52°F
19 September
☁️
+46°F
20 September
☁️
+48°F
21 September
☁️
+46°F
22 September
☁️
+52°F
23 September
☁️
+50°F
24 September
☁️
+49°F
25 September
🌧️
+52°F
26 September
🌧️
+55°F
27 September
☁️
+56°F
28 September
☁️
+52°F
29 September
🌧️
+54°F
30 September
☁️
+53°F
In September 2023 Harstad had 0 sunny days, 17 cloudy days, and 13 rainy days. The average maximum temperature was +54°F, with an absolute maximum of +63°F and a minimum of +46°F. The average humidity was 85%, with a maximum of 100% and a minimum of 62%. The average wind speed was 6 m/s, with a maximum of 22 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change Over the Years
This is how Harstad climate has changed over the last 43 years.
The climate in Harstad in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1981 (+39°F) and the highest in 2011 (+45°F). The driest year was 1980 with only 570 mm of rainfall, and the wettest year was 2005 with 1322 mm.
FAQ
Frequently asked questions about the weather in Harstad in September:
Is September a good time to visit Harstad?
It’s always a good time to visit Harstad, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Harstad in September?
Not really, September is not the best time to sunbathe, unless you visit a local solarium.
Is Harstad rainy in September?
Harstad is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Harstad in September?
Usually, it’s not very sunny in Harstad in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
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.
