Fredrikstad Municipality weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Poor
Best time to visit: July
What is the weather like in Fredrikstad Municipality in August?
In August, Fredrikstad Municipality is mild: daytime highs average 20 °C, and nights cool down to about 14 °C. The sea averages 18.3 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7 hours a day. Rain is frequent, with about 13 rainy days and 89 mm in total. All in all, August is not an ideal month for a holiday in Fredrikstad Municipality.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 40 | 30 | 19 |
| Day | 21° | 20° | 16° |
| Night | 15° | 14° | 11° |
| Sea | 18° | 18° | 16° |
| Sun | 9 h | 7 h | 6 h |
| Rain days | 12 | 13 | 11 |
More details for August
- Daylight
- 15 h 38 min05:32 – 21:10
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 60 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Oslo
How the score comes together
- Temperatureweight 35 %12 %
- Seaweight 25 %19 %
- Sunshineweight 20 %70 %
- Few rainy daysweight 20 %36 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in August
- Wetsuit for longer swims
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Fredrikstad Municipality in August: quick answers
Is Fredrikstad Municipality hot in August?
No. In August, Fredrikstad Municipality is mild: daytime highs average 20 °C and nights drop to about 14 °C.
Can you swim in Fredrikstad Municipality in August?
Only if you don't mind cold water: in August the sea averages just 18.3 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Fredrikstad Municipality in August?
Rain is frequent, with about 13 rainy days and 89 mm in total.
Fredrikstad Municipality month by month
The whole year in Fredrikstad MunicipalityAll destinations: NorwayWhere to go in AugustSea temperature in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences