Weather in Oslo in July

A good month. July is a solid month to be in Oslo. You should expect rain on 18 days of the month, which is more days wet than dry.

July ranks 2 of 12 in Oslo. Only June scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain on 18 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average July reaches 30 °C. Across the twenty years measured, the hottest July day reached 32.8 °C and the coldest night fell to 7.2 °C, and the wettest single day dropped 37 mm — roughly 33% of the month's rain in one day.

July is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest July on record still delivered 205 mm against 36 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 111 mm average is a reasonable planning figure, not a promise.

Wind is light at 1.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 81%, high enough to notice on the warm days without dominating them.

How July sits in the year

This is a turning point in the year — June and August sit on opposite sides of it, so the month contains the change rather than following it.

Daylight in July

18.1 hours of daylight, losing 1.7 hours across the month. That is between Oslo's extremes of 18.8 and 6 hours, so days are long enough not to constrain the plan.

An inland climate

With no coast nearby, the year swings a fair way — 28.8 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

July in Oslo versus nearby

If Oslo is one option among several, the nearby comparison is worth making. Kristiansand is close enough to be a coin toss — 3.7 °C cooler, 4 days less rain. Gothenburg is close enough to be a coin toss — within a degree on temperature, 3 days less rain.

So: July is effectively as good as it gets here — 5 points behind June, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Oslo

See all twelve months in Oslo, or where else to go in July.