Climate averages 1991–2020
Halmstad weather
in September.
A mild, moderately wet month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Halmstad: daytime highs average 16.4°C and nights cool to about 10.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 76 mm of rain on roughly 13 days, which makes September a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 51 min on an average September day.
The nearest other city in this atlas is Helsingborg (71 km away). In September its highs average 16.7°C, about as warm as Halmstad, with 62 mm of rain.
Among the 21 cities listed in Sweden, Halmstad ranks 4th of 21 for the warmest September highs and 19th of 21 for the driest September (rainfall, lowest first). The mean September high of those 21 cities is 15.5°C; Halmstad is 0.9°C warmer than that mean.
From September to October, average highs fall by 5.3°C to 11.1°C, and monthly rainfall rises from 76 mm to 84 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Halmstad climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.1°C-1.7°C | -1.7°C | 68 | 12.3 | 7.58 h |
| February | 2.6°C-2.0°C | -2.0°C | 54 | 10.5 | 9.59 h |
| March | 5.7°C-0.6°C | -0.6°C | 48 | 10.3 | 11.812 h |
| April | 11.3°C3.0°C | 3.0°C | 48 | 10.2 | 14.214 h |
| May | 16.0°C7.5°C | 7.5°C | 63 | 12.3 | 16.416 h |
| June | 18.8°C11.2°C | 11.2°C | 81 | 13.1 | 17.718 h |
| July | 21.0°C13.6°C | 13.6°C | 90 | 13.7 | 17.117 h |
| August | 20.4°C13.6°C | 13.6°C | 102 | 15.3 | 15.215 h |
| September, selected | 16.4°C10.5°C | 10.5°C | 76 | 12.7 | 12.813 h |
| October | 11.1°C6.4°C | 6.4°C | 84 | 14.1 | 10.410 h |
| November | 6.3°C2.8°C | 2.8°C | 67 | 12.0 | 8.28 h |
| December | 3.2°C-0.3°C | -0.3°C | 73 | 13.1 | 6.97 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Helsingborg in SeptemberSweden · 71 kmHigh 16.7°C · Low 10.8°C · 62 mm rain
- Lund in SeptemberSweden · 110 kmHigh 16.6°C · Low 10.5°C · 58 mm rain
- Copenhagen in SeptemberDenmark · 112 kmHigh 16.7°C · Low 11.5°C · 59 mm rain
- Borås in SeptemberSweden · 116 kmHigh 15.5°C · Low 9.7°C · 83 mm rain
- Malmö in SeptemberSweden · 119 kmHigh 16.8°C · Low 11.1°C · 53 mm rain
- Växjö in SeptemberSweden · 121 kmHigh 15.5°C · Low 9.5°C · 59 mm rain
- Gothenburg in SeptemberSweden · 127 kmHigh 16.2°C · Low 10.6°C · 93 mm rain
- Jönköping in SeptemberSweden · 146 kmHigh 15.6°C · Low 10.2°C · 62 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Halmstad) is explained once on the Halmstad year overview and on the Sources, method and limits page.