August weather forecastTønsberg, Norway

August

Weather in August

Even though it is still summer, August sees a marginal drop in temperatures from July in Tønsberg. The city experiences temperatures that range from 13.5°C (56.3°F) to 18.4°C (65.1°F), marking the closing phase of the warm season. Despite the heat, precipitation remains frequent, and the sea temperature soars to a yearly high of 18.4°C (65.1°F). Mostly pleasant, August greets visitors with warm coastal winds and a mixture of sun and rain, offering a distinctly Norwegian summer experience.

Temperature

With the advent of August, Tønsberg experiences an average high-temperature of a still comfortable 18.4°C (65.1°F), mirroring a close resemblance to the previous month. August notes an average low temperature of 13.5°C (56.3°F), subtly down from the daytime highs.

Humidity

In August, the average relative humidity in Tønsberg is 77%.

Rainfall

In Tønsberg, during August, the rain falls for 14.8 days and regularly aggregates up to 55mm (2.17") of precipitation. In Tønsberg, Norway, during the entire year, the rain falls for 130.2 days and collects up to 549mm (21.61") of precipitation.

Snowfall

May through September are months without snowfall in Tønsberg.

Sea temperature

With an average sea temperature of 18.4°C (65.1°F), August is the month with the warmest seawater.
Note: Swimming is not a pleasurable activity for the majority in water at 18.4°C (65.1°F). Breathing control gets harder as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).

Daylight

The average length of the day in August in Tønsberg is 15h and 28min.
On the first day of the month, sunrise is at 05:05 and sunset at 21:43. On the last day of August, in Tønsberg, sunrise is at 06:14 and sunset at 20:22 CEST.

Sunshine

The average sunshine in August is 10h.

UV index

The average daily maximum UV index in August in Tønsberg is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the maximum UV index of 4 transforms into these recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Boost your sun resistance with garments that are densely woven yet spacious.

Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Tønsberg, 18.4°C (65.1°F) is the average high-temperature and 13.5°C (56.3°F) is the average low-temperature during August.

The average relative humidity in August in Tønsberg, Norway, is 77%.

In Tønsberg, Norway, during August, the rain falls for 14.8 days and regularly aggregates up to 55mm (2.17") of precipitation.

May through September are months without snowfall in Tønsberg, Norway.

With an average sea temperature of 18.4°C (65.1°F), August is the month with the warmest seawater.

In Tønsberg, in August, the average water temperature is 18.4°C (65.1°F). For swimming, a surface water temperature of 18.4°C (65.1°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

The average day length in August in Tønsberg, Norway, is 15h and 28min.

In August, on the first day of the month, sunrise is at 05:05 and sunset at 21:43. On the last day of the month, in Tønsberg, sunrise is at 06:14 and sunset at 20:22 CEST.

The average sunshine duration in August is 10h.

In Tønsberg, the average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J August S O N D

Jul

August

Sep

Average high temperature

19.1°C

18.4°C

15.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

15.1km/h

15.7km/h

17.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

13.4

14.8

17.3

Average UV index

Average cloud cover

36%

41%

Average visibility

10km

Average temperature in August
Tønsberg, Norway

Average high temperature in August: 18.4°C

The warmest month (with the highest average high temperature) is July (19.1°C).
The month with the lowest average high temperature is February (0.3°C).

Average low temperature in August: 13.5°C

The month with the highest average low temperature is July (13.7°C).
The coldest month (with the lowest average low temperature) is February (-3°C).

Average pressure in August
Tønsberg, Norway

Average pressure in August: 1011.4mbar

The month with the highest atmospheric pressure is April (1014.4mbar).
The month with the lowest atmospheric pressure is December (1008mbar).

Average wind speed in August
Tønsberg, Norway

Average wind speed in August: 14.6km/h

The windiest months (with the highest average wind speed) are November and December (19.7km/h).
The calmest month (with the lowest average wind speed) is July (13.9km/h).

Average humidity in August
Tønsberg, Norway

Average humidity in August: 77%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April and May (72%).

Average rainfall in August
Tønsberg, Norway

Average rainfall in August: 55mm

The wettest month (with the highest rainfall) is November (65mm).
The driest month (with the least rainfall) is April (23mm).

Average rainfall days in August
Tønsberg, Norway

Average rainfall days in August: 14.8 days

The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in August
Tønsberg, Norway

Average snowfall in August: 0mm

The month with the highest snowfall is January (111mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in August
Tønsberg, Norway

Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average sea temperature in August
Tønsberg, Norway

Average sea temperature in August: 18.4°C

The best month for swimming (with the highest average sea temperature) is August (18.4°C).
The coldest month (with the lowest average sea temperature) is March (2.8°C).

Average daylight in August /
Average sunshine in August
Tønsberg, Norway

Average daylight in August: 15h and 30min

The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 18min).

Average sunshine in August: 10h and 0min

The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

Average sunshine days in August
Tønsberg, Norway

Average sunshine days in August: 14.8 days

The month with the most sunshine days is April (19.9 days).
The months with the least sunshine days are June and July (13.4 days).

Average UV index in August
Tønsberg, Norway

Average UV index in August: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in August
Tønsberg, Norway

Average cloud cover in August: 36

The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are June, July and August (Cloud cover 36).

Average visibility in August
Tønsberg, Norway

Average visibility in August: 10km

The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).