When is the best time to go to Boulder
The chart above shows the best time of year to visit Boulder, Australia. 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 Boulder
Boulder weather by month
Please note our recommendations for when to visit Boulder 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 |
|---|---|---|---|
| 30°C | 25mm | 11.4hrs | 14.8hrs |
January is a dry month in Boulder and the temperature is generally hot.
Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it an okay time to visit Boulder.
January is in the summer in Boulder and is typically the coldest month of the year. Daytime maximum temperatures average around a warm 33°C (92°F), whilst at night 18°C (64°F) is normal.
On average January is the driest month of the year in Boulder with around 25mm 1 inches of rain making it a dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 11.4 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 29°C | 26mm | 10.2hrs | 14hrs |
February in Boulder is generally dry with the temperature being hot.
Although outside the main holiday season, there is still plenty of pretty acceptable weather around this time of year. This makes it an okay time to visit Boulder.
February is in the summer in Boulder and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around 32°C (89°F), whilst at night 17°C (63°F) is normal.
On average February is the 2nd driest month of the year in Boulder with around 26mm 1 inches of rain making it a dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.2 hours of sunshine per day.
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 26°C | 23mm | 9.2hrs | 13.1hrs |
The weather in March in Boulder is characteristically warm and dry.
It is perhaps the perfect month to visit Boulder, with some very good weather at this time of year.
March is in the fall / autumn in Boulder and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a comfortable 29°C (85°F), whilst at night 16°C (60°F) is normal.
On average March is the 3rd driest month of the year in Boulder with around 23mm 0.9 inches of rain making it a dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.2 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 22°C | 25mm | 7.6hrs | 12.2hrs |
Boulder's weather in April is typically warm and dry in nature.
It is perhaps a good month to visit Boulder, with some surprisingly good weather at this time of year.
April is in the fall / autumn in Boulder and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a comfortable 25°C (77°F), whilst at night 12°C (54°F) is normal.
On average April is the 4th driest month of the year in Boulder with around 25mm 1 inches of rain making it a dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.6 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 18°C | 33mm | 6.9hrs | 11.5hrs |
May is a reasonably dry month in Boulder and the temperature is generally mild.
Based on weather alone, this is probably a time of year to avoid going to Boulder for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
May is in the fall / autumn in Boulder and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 8°C (46°F) is normal.
On average May is the 5th driest month of the year in Boulder with around 33mm 1.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.9 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 15°C | 37mm | 6.2hrs | 14.8hrs |
Mild and reasonably dry weather often prevails in Boulder during the month of June
Based on weather alone, this is probably a time of year to avoid going to Boulder for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
June is in the winter in Boulder and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a cool 17°C (63°F), whilst at night 6°C (42°F) is normal.
On average June is the 6th driest month of the year in Boulder with around 37mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.2 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 14°C | 28mm | 6.7hrs | 14hrs |
July in Boulder is generally dry with the temperature being mild.
Based on weather alone, this is probably a time of year to avoid going to Boulder for your holidays. The weather is often not a good and not conducive to spending time outdoors.
July is in the winter in Boulder and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 16°C (61°F), whilst at night 4°C (40°F) is normal.
On average July is the 6th wettest month of the year in Boulder with around 28mm 1.1 inches of rain making it a 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 6.7 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 16°C | 22mm | 7.9hrs | 13.1hrs |
The weather in August in Boulder is characteristically mild and dry.
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 Boulder.
August is in the winter in Boulder and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 5°C (41°F) is normal.
On average August is the 5th wettest month of the year in Boulder with around 22mm 0.9 inches of rain making it a dry time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.9 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 20°C | 16mm | 9.1hrs | 12.2hrs |
Boulder's weather in September is typically mild and dry in nature.
It is perhaps a good month to visit Boulder, with some extremely good weather at this time of year.
September is in the spring in Boulder and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 7°C (45°F) is normal.
On average September is the 4th wettest month of the year in Boulder with around 16mm 0.6 inches of rain making it a dry time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.1 hours of sunshine per day.
Boulder weather in September »
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 23°C | 18mm | 9.9hrs | 11.5hrs |
October is a dry month in Boulder and the temperature is generally mild.
It is perhaps the perfect month to visit Boulder, with some extremely good weather at this time of year.
October is in the spring in Boulder and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 25°C (78°F), whilst at night 10°C (51°F) is normal.
On average October is the 3rd wettest month of the year in Boulder with around 18mm 0.7 inches of rain making it a dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.9 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 26°C | 19mm | 10.4hrs | 14.8hrs |
Warm and dry weather often prevails in Boulder during the month of November
It is perhaps the perfect month to visit Boulder, with some inordinately good weather at this time of year.
November is in the spring in Boulder and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a comfortable 29°C (84°F), whilst at night 14°C (57°F) is normal.
On average November is the 2nd wettest month of the year in Boulder with around 19mm 0.8 inches of rain making it a dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.4 hours of sunshine per day.
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 29°C | 17mm | 11.6hrs | 14hrs |
December in Boulder is generally dry with the temperature being hot.
Although outside the main holiday season, there is still plenty of pretty acceptable weather around this time of year. This makes it an okay time to visit Boulder.
December is in the summer in Boulder and is typically the warmest month of the year. Daytime maximum temperatures average around a comfortable 32°C (89°F), whilst at night 16°C (61°F) is normal.
On average December is the wettest month of the year in Boulder with around 17mm 0.7 inches of rain making it a dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 11.6 hours of sunshine per day.
Other monthly averages
Boulder weather stats
| Hottest month: | January | 32.9°C 91.2°F |
|---|---|---|
| Driest month: | September | 16mm 0.6ins |
| Sunniest month: | December | 11.6hrs |
| Coldest month: | July | 15.8°C 60.4°F |
| Wettest month: | June | 37mm 1.5ins |
| Warmest sea: | March | 22.8°C 73°F |
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