When to go · Porsgrunn
Porsgrunn in May
Good month. Outside the best window (Jun–Aug, Sep (mild weather and festival)). Across Norway: Fruit blossom in Hardanger, 17 May celebrations; mountain roads still closed early in the month.
Key facts
- Verdict
- Good
- Temperature
- 17°C (63°F)63°F (17°C) / 9°C (48°F)48°F (9°C)
- average high / low
- Rain days
- 9
- Crowds
- Medium
- Norway overall
- Prices
- Medium
- Norway overall
Verdict
Outside the best window (Jun–Aug, Sep (mild weather and festival)). Across Norway: Fruit blossom in Hardanger, 17 May celebrations; mountain roads still closed early in the month.
Is another month better than May?
May is rated good. These months rate higher:
- JuneGreatInside Porsgrunn's best window: Jun–Aug, Sep (mild weather and festival).
- JulyGreatInside Porsgrunn's best window: Jun–Aug, Sep (mild weather and festival).
- AugustGreatInside Porsgrunn's best window: Jun–Aug, Sep (mild weather and festival).
- SeptemberGreatInside Porsgrunn's best window: Jun–Aug, Sep (mild weather and festival).
Weather in May
- PorsgrunnHighs around 17 °C (63 °F), lows around 9 °C (48 °F), rain on about 9 daysHighs around 63 °F (17 °C), lows around 48 °F (9 °C), rain on about 9 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Constitution Day big impact
17 May · Norway
Children's parades, national costumes, everything closed; Whit Monday also falls on 17 May in 2027.
Crowds and prices
- Crowds · Norway overall
- Medium
- Prices · Norway overall
- Medium
Norway overall: Fruit blossom in Hardanger, 17 May celebrations; mountain roads still closed early in the month.
Compare two months
Weather, crowds and prices for any two months in Porsgrunn, side by side.
Verdict
May: Good
Jun: Great (better)
Daytime high
May: 17 °C (63 °F)63 °F (17 °C)
Jun: 20 °C (68 °F)68 °F (20 °C)
Night low
May: 9 °C (48 °F)48 °F (9 °C)
Jun: 12 °C (54 °F)54 °F (12 °C)
Rain days
May: 9
Jun: 8 (better)
Crowds
May: Medium
Jun: High
Prices
May: Medium
Jun: High
Festivals listed
May: 1
Jun: 0
May: Outside the best window (Jun–Aug, Sep (mild weather and festival)). Across Norway: Fruit blossom in Hardanger, 17 May celebrations; mountain roads still closed early in the month.
June: Inside Porsgrunn's best window: Jun–Aug, Sep (mild weather and festival).
Porsgrunn: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings