When is the best time to go to Roscommon
The chart above shows the best time of year to visit Roscommon, United States. 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 Roscommon
Roscommon weather by month
Please note our recommendations for when to visit Roscommon 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 |
|---|---|---|---|
| -3°C | 38mm | 3.7hrs | 10.4hrs |
The weather in January in Roscommon is characteristically cold and reasonably dry.
Based on weather alone, this is probably a time of year to avoid going to Roscommon for your holidays. The weather is often not a good and not conducive to spending time outdoors.
January is in the winter in Roscommon and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing -4°C (25°F), whilst at night -13°C (9°F) is normal.
On average January is the driest month of the year in Roscommon with around 38mm 1.5 inches of rain making it a reasonably 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 3.7 hours of sunshine per day.
Roscommon weather in January »
February
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| -2°C | 29mm | 5hrs | 11.5hrs |
February in Roscommon is generally dry with the temperature being cold.
Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit Roscommon.
February is in the winter in Roscommon and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing -2°C (28°F), whilst at night -13°C (8°F) is normal.
On average February is the 2nd driest month of the year in Roscommon with around 29mm 1.2 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 5 hours of sunshine per day.
Roscommon weather in February »
March
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 3°C | 51mm | 6.3hrs | 12.8hrs |
The weather in March in Roscommon is characteristically cold and reasonably dry.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Roscommon.
March is in the spring in Roscommon and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a freezing 3°C (38°F), whilst at night -8°C (18°F) is normal.
On average March is the 3rd driest month of the year in Roscommon with around 51mm 2 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 6.3 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 10°C | 58mm | 7.6hrs | 14.4hrs |
Roscommon's weather in April is typically cool and reasonably dry in nature.
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 Roscommon.
April is in the spring in Roscommon and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 11°C (53°F), whilst at night -0°C (31°F) is normal.
On average April is the 4th driest month of the year in Roscommon with around 58mm 2.3 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 7.6 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 17°C | 66mm | 9.3hrs | 15.8hrs |
May is a reasonably dry month in Roscommon and the temperature is generally mild.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Roscommon.
May is in the spring in Roscommon and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 19°C (66°F), whilst at night 6°C (42°F) is normal.
On average May is the 5th driest month of the year in Roscommon with around 66mm 2.6 inches of rain making it a reasonably 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 9.3 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 21°C | 77mm | 10.3hrs | 10.4hrs |
Roscommon's weather in June is typically mild and reasonably dry in nature.
It is perhaps the perfect month to visit Roscommon, with some surprisingly good weather at this time of year.
June is in the summer in Roscommon and is typically the 6th coldest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 10°C (51°F) is normal.
On average June is the 6th driest month of the year in Roscommon with around 77mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.3 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 24°C | 67mm | 10.7hrs | 11.5hrs |
July in Roscommon is generally reasonably dry with the temperature being warm.
It is perhaps the perfect month to visit Roscommon, with some surprisingly good weather at this time of year.
July is in the summer in Roscommon and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 27°C (80°F), whilst at night 13°C (55°F) is normal.
On average July is the 6th wettest month of the year in Roscommon with around 67mm 2.6 inches of rain making it a reasonably 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 10.7 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 22°C | 86mm | 9hrs | 12.8hrs |
The weather in August in Roscommon is characteristically warm and a little damp.
It is perhaps the perfect month to visit Roscommon, with some very good weather at this time of year.
August is in the summer in Roscommon and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 12°C (54°F) is normal.
On average August is the 5th wettest month of the year in Roscommon with around 86mm 3.4 inches of rain making it a a little damp 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 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 18°C | 88mm | 7hrs | 14.4hrs |
Roscommon's weather in September is typically mild and a little damp in nature.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Roscommon.
September is in the fall / autumn in Roscommon and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 8°C (47°F) is normal.
On average September is the 4th wettest month of the year in Roscommon with around 88mm 3.5 inches of rain making it a a little damp 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 7 hours of sunshine per day.
Roscommon weather in September »
October
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 12°C | 57mm | 5.1hrs | 15.8hrs |
October is a reasonably dry month in Roscommon and the temperature is generally cool.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Roscommon.
October is in the fall / autumn in Roscommon and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 13°C (56°F), whilst at night 3°C (37°F) is normal.
On average October is the 3rd wettest month of the year in Roscommon with around 57mm 2.2 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 5.1 hours of sunshine per day.
Roscommon weather in October »
November
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| 5°C | 59mm | 3hrs | 10.4hrs |
Cool and reasonably dry weather often prevails in Roscommon during the month of November
Based on weather alone, this is probably a time of year to avoid going to Roscommon for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
November is in the fall / autumn in Roscommon and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cold 6°C (42°F), whilst at night -2°C (28°F) is normal.
On average November is the 2nd wettest month of the year in Roscommon with around 59mm 2.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 3 hours of sunshine per day.
Roscommon weather in November »
December
| Temp | Rain | Sunshine | Day length |
|---|---|---|---|
| -1°C | 50mm | 2.6hrs | 11.5hrs |
December in Roscommon is generally reasonably dry with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Roscommon for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
December is in the winter in Roscommon and is typically the warmest month of the year. Daytime maximum temperatures average around a freezing -1°C (30°F), whilst at night -9°C (16°F) is normal.
On average December is the wettest month of the year in Roscommon with around 50mm 2 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 2.6 hours of sunshine per day.
Other monthly averages
Roscommon weather stats
| Hottest month: | July | 26.1°C 79°F |
|---|---|---|
| Driest month: | February | 29mm 1.1ins |
| Sunniest month: | July | 10.7hrs |
| Coldest month: | January | -3.9°C 25°F |
| Wettest month: | September | 88mm 3.5ins |
| Warmest sea: | August | 18.8°C 65.8°F |
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