When is the best time to go to Dumbarton
The chart above shows the best time of year to visit Dumbarton, United Kingdom. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Dumbarton
Dumbarton weather by month
Please note our recommendations for when to visit Dumbarton are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 5°C | 169mm | 1.4hrs | 9.2hrs | 8°C |
The weather in January in Dumbarton is characteristically cool and wet.
Based on weather alone, this is probably a time of year to avoid going to Dumbarton for your holidays. The weather is often not a good and not conducive to spending time outdoors.
January is in the winter in Dumbarton and is typically the coldest month of the year. Daytime maximum temperatures average around a cold 6°C (42°F), whilst at night 1°C (33°F) is normal.
On average January is the driest month of the year in Dumbarton with around 169mm 6.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.
On the flip side this corresponds to an average of 1.4 hours of sunshine per day.
Dumbarton weather in January »
February
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 5°C | 112mm | 2.5hrs | 10.9hrs | 7°C |
February in Dumbarton is generally damp with the temperature being cool.
Based on weather alone, this is probably a time of year to avoid going to Dumbarton for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
February is in the winter in Dumbarton and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cold 6°C (42°F), whilst at night 1°C (33°F) is normal.
On average February is the 2nd driest month of the year in Dumbarton with around 112mm 4.4 inches of rain making it a damp time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 2.5 hours of sunshine per day.
Dumbarton weather in February »
March
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 7°C | 136mm | 3.3hrs | 13hrs | 7°C |
The weather in March in Dumbarton is characteristically cool and wet.
Based on weather alone, this is probably a time of year to avoid going to Dumbarton for your holidays. The weather is often not a good and not conducive to spending time outdoors.
March is in the spring in Dumbarton and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 8°C (46°F), whilst at night 2°C (35°F) is normal.
On average March is the 3rd driest month of the year in Dumbarton with around 136mm 5.4 inches of rain making it a wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.3 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 10°C | 79mm | 5.3hrs | 15.5hrs | 8°C |
Dumbarton's weather in April is typically cool and reasonably dry in nature.
It is perhaps a good month to visit Dumbarton, with some very good weather at this time of year.
April is in the spring in Dumbarton and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 11°C (52°F), whilst at night 3°C (38°F) is normal.
On average April is the 4th driest month of the year in Dumbarton with around 79mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.3 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 13°C | 94mm | 6.2hrs | 17.8hrs | 10°C |
May is a a little damp month in Dumbarton and the temperature is generally mild.
It is perhaps a good month to visit Dumbarton, with some very good weather at this time of year.
May is in the spring in Dumbarton and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 14°C (58°F), whilst at night 6°C (43°F) is normal.
On average May is the 5th driest month of the year in Dumbarton with around 94mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.2 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 15°C | 85mm | 6.4hrs | 9.2hrs | 12°C |
Mild and a little damp weather often prevails in Dumbarton during the month of June
It is perhaps the perfect month to visit Dumbarton, with some inordinately good weather at this time of year.
June is in the summer in Dumbarton and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 9°C (48°F) is normal.
On average June is the 6th driest month of the year in Dumbarton with around 85mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.4 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 16°C | 94mm | 5.7hrs | 10.9hrs | 14°C |
July in Dumbarton is generally a little damp with the temperature being mild.
It is perhaps the perfect month to visit Dumbarton, with some very good weather at this time of year.
July is in the summer in Dumbarton and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 18°C (65°F), whilst at night 11°C (51°F) is normal.
On average July is the 6th wettest month of the year in Dumbarton with around 94mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.7 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 16°C | 126mm | 5.1hrs | 13hrs | 15°C |
The weather in August in Dumbarton is characteristically mild and wet.
Although outside the main holiday season, there is still plenty of fairly acceptable weather around this time of year. This makes it an okay time to visit Dumbarton.
August is in the summer in Dumbarton and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 18°C (64°F), whilst at night 11°C (51°F) is normal.
On average August is the 5th wettest month of the year in Dumbarton with around 126mm 4.9 inches of rain making it a wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.1 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 14°C | 169mm | 3.9hrs | 15.5hrs | 14°C |
Dumbarton's weather in September is typically mild and wet in nature.
Based on weather alone, this is probably a time of year to avoid going to Dumbarton for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
September is in the fall / autumn in Dumbarton and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 9°C (48°F) is normal.
On average September is the 4th wettest month of the year in Dumbarton with around 169mm 6.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.9 hours of sunshine per day.
Dumbarton weather in September »
October
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 11°C | 175mm | 2.8hrs | 17.8hrs | 14°C |
October is a wet month in Dumbarton and the temperature is generally cool.
Based on weather alone, this is probably a time of year to avoid going to Dumbarton for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
October is in the fall / autumn in Dumbarton and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 7°C (44°F) is normal.
On average October is the 3rd wettest month of the year in Dumbarton with around 175mm 6.9 inches of rain making it a wet time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.
On the flip side this corresponds to an average of 2.8 hours of sunshine per day.
Dumbarton weather in October »
November
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 7°C | 163mm | 2hrs | 9.2hrs | 12°C |
The climate in Dumbarton during November can be summarized as cool and wet.
Based on weather alone, this is probably a time of year to avoid going to Dumbarton for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
November is in the fall / autumn in Dumbarton and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cool 8°C (47°F), whilst at night 3°C (37°F) is normal.
On average November is the 2nd wettest month of the year in Dumbarton with around 163mm 6.4 inches of rain making it a wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 2 hours of sunshine per day.
Dumbarton weather in November »
December
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 6°C | 162mm | 1.3hrs | 10.9hrs | 10°C |
December in Dumbarton is generally wet with the temperature being cool.
Based on weather alone, this is probably a time of year to avoid going to Dumbarton for your holidays. The weather is often not a good and not conducive to spending time outdoors.
December is in the winter in Dumbarton and is typically the warmest month of the year. Daytime maximum temperatures average around a cold 7°C (44°F), whilst at night 2°C (35°F) is normal.
On average December is the wettest month of the year in Dumbarton with around 162mm 6.4 inches of rain making it a wet time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.
On the flip side this corresponds to an average of 1.3 hours of sunshine per day.
Other monthly averages
Dumbarton weather stats
| Hottest month: | July | 17.9°C 64.2°F |
|---|---|---|
| Driest month: | April | 79mm 3.1ins |
| Sunniest month: | May | 6.2hrs |
| Coldest month: | January | 5.5°C 41.9°F |
| Wettest month: | October | 175mm 6.9ins |
| Warmest sea: | August | 14.7°C 58.5°F |
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