Climate and monthly weather forecastSwansea, AZ
Climate and monthly weather forecast
Weather in January
January, the same as December, is another comfortable winter month in Swansea, Arizona, with temperature in the range of an average high of 63.1°F (17.3°C) and an average low of 47.3°F (8.5°C). January's presence records an average high-temperature of a still comfortable 63.1°F (17.3°C), closely mirroring December's climate. Weather in January »Weather in February
The last month of the winter, February, is another refreshing month in Swansea, Arizona, with an average temperature ranging between max 67.1°F (19.5°C) and min 50.4°F (10.2°C). As February takes its course, Swansea's average high-temperature registers at a still comfortable 67.1°F (19.5°C), closely aligning with the preceding month. Weather in February »Weather in March
March, the first month of the spring in Swansea, is a warm month, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 75.4°F (24.1°C). The start of March brings a subtle shift in the average high-temperature, edging up from February's enjoyable 67.1°F (19.5°C) to a warm 75.4°F (24.1°C). Weather in March »Weather in April
April, like March, in Swansea, Arizona, is another warm spring month, with an average temperature fluctuating between 62.2°F (16.8°C) and 82.8°F (28.2°C). Observing a minor shift, the average high-temperature during April adjusts from March's warm 75.4°F (24.1°C) to a still moderately hot 82.8°F (28.2°C). Weather in April »Weather in May
May, the last month of the spring in Swansea, is a tropical month, with an average temperature fluctuating between 68.4°F (20.2°C) and 90.1°F (32.3°C). Observing a slight rise in May, the average high-temperature shifts from April's moderately hot 82.8°F (28.2°C) to a hot 90.1°F (32.3°C). Weather in May »Weather in June
June, the first month of the summer in Swansea, is a fiery hot month, with an average temperature varying between 76.6°F (24.8°C) and 101.7°F (38.7°C). An escalation in the average high-temperature is seen with the onset of June, moving from a tropical 90.1°F (32.3°C) in May to a torrid 101.7°F (38.7°C). Weather in June »Weather in July
July is an extremely hot summer month in Swansea, Arizona, with an average temperature ranging between max 104.2°F (40.1°C) and min 84.4°F (29.1°C). Swansea's July weather reaches an average high of 104.2°F (40.1°C) and an average low of 84.4°F (29.1°C), making it the warmest month. Weather in July »Weather in August
The last month of the summer, August, is another torrid month in Swansea, Arizona, with an average temperature varying between 103.6°F (39.8°C) and 85.6°F (29.8°C). Swansea indicates an average high-temperature of a torrid 103.6°F (39.8°C) in August, showing minor variation from July's 104.2°F (40.1°C). Weather in August »Weather in September
September, the first month of the autumn in Swansea, is also a sweltering month, with an average temperature ranging between min 79.9°F (26.6°C) and max 96.8°F (36°C). September's arrival subtly correlates with a reduction in the average high-temperature, down from a sweltering 103.6°F (39.8°C) in August to a still very hot 96.8°F (36°C). Weather in September »Weather in October
October, like September, in Swansea, Arizona, is another warm autumn month, with an average temperature fluctuating between 84.9°F (29.4°C) and 68°F (20°C). The start of October comes with a reduction in the average high-temperature, receding from a sweltering 96.8°F (36°C) in September to a warm 84.9°F (29.4°C). Weather in October »Weather in November
The last month of the autumn, November, is also an agreeable month in Swansea, Arizona, with an average temperature varying between 55.6°F (13.1°C) and 72.9°F (22.7°C). Swansea experiences a temperature shift at the start of November, with average high-temperatures adjusting from a moderately hot 84.9°F (29.4°C) in October to an agreeable 72.9°F (22.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a comfortable month in Swansea, Arizona, with an average temperature ranging between max 61.2°F (16.2°C) and min 47.1°F (8.4°C). December, on average, is the coldest month, registering a high temperature of 61.2°F (16.2°C) and a low of 47.1°F (8.4°C). Weather in December »Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January and December, with an average relative humidity of 39%, are most humid months in Swansea.
In Swansea, during the entire year, the rain falls for 39.4 days and collects up to 3.9" (99mm) of precipitation.
May and June are months with the least rain when the rain falls for 1.2 days and typically aggregates up to 0.04" (1mm) of rain.
The least humid month in Swansea is June, with an average relative humidity of 15%.
June has the longest days of the year, with an average of 14h and 24min of daylight.
With an average of 12.1h of sunshine, June has the most sunshine of the year.
July is the month when Swansea experiences its warmest temperatures, averaging a high of 104.2°F (40.1°C) and a low of 84.4°F (29.1°C).
July is the month with the most rainfall. Rain falls for 7.8 days and accumulates 0.59" (15mm) of precipitation.
The month with the highest UV index is July, with an average maximum UV index of 9.
December, having an average high-temperature of 61.2°F (16.2°C) and an average low-temperature of 47.1°F (8.4°C), is the coldest month.
December has the shortest days of the year, with an average of 9h and 54min of daylight.
Swansea does not observe Daylight Saving Time (DST). MST timezone is used throughout the entire year.
With an average of 7h of sunshine, December has the least sunshine of the year.
December is the month with the lowest UV index, with an average maximum UV index of 3.
Average temperature
Swansea, AZ
The warmest month (with the highest average high temperature) is July (104.2°F).
The month with the lowest average high temperature is December (61.2°F).
The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is December (47.1°F).
Average pressure
Swansea, AZ
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
29.95"Hg - Average pressure in April:
29.86"Hg - Average pressure in May:
29.8"Hg - Average pressure in June:
29.74"Hg
- Average pressure in July:
29.8"Hg - Average pressure in August:
29.79"Hg - Average pressure in September:
29.81"Hg - Average pressure in October:
29.88"Hg - Average pressure in November:
30"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.74"Hg).
Average wind speed
Swansea, AZ
- Average wind speed in January:
6mph - Average wind speed in February:
6.5mph - Average wind speed in March:
7.2mph - Average wind speed in April:
8.5mph - Average wind speed in May:
8.4mph - Average wind speed in June:
8.2mph
- Average wind speed in July:
7.8mph - Average wind speed in August:
7.4mph - Average wind speed in September:
6.5mph - Average wind speed in October:
6.6mph - Average wind speed in November:
5.8mph - Average wind speed in December:
6mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).
Average humidity
Swansea, AZ
The months with the highest relative humidity are January and December (39%).
The month with the lowest relative humidity is June (15%).
Average rainfall
Swansea, AZ
- Average rainfall in January:
0.31" - Average rainfall in February:
0.35" - Average rainfall in March:
0.35" - Average rainfall in April:
0.12" - Average rainfall in May:
0.04" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.55" - Average rainfall in September:
0.43" - Average rainfall in October:
0.39" - Average rainfall in November:
0.35" - Average rainfall in December:
0.35"
The wettest month (with the highest rainfall) is July (0.59").
The driest months (with the least rainfall) are May and June (0.04").
Average rainfall days
Swansea, AZ
- Average rainfall days in January:
2.3 days - Average rainfall days in February:
2.7 days - Average rainfall days in March:
2.8 days - Average rainfall days in April:
2.6 days - Average rainfall days in May:
1.2 days - Average rainfall days in June:
1.3 days
- Average rainfall days in July:
7.8 days - Average rainfall days in August:
6 days - Average rainfall days in September:
4.8 days - Average rainfall days in October:
2.8 days - Average rainfall days in November:
1.5 days - Average rainfall days in December:
3.6 days
The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is May (1.2 days).
Average daylight / Average sunshine
Swansea, AZ
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
7h and 36min - Average sunshine in February:
9h and 24min - Average sunshine in March:
9h and 24min - Average sunshine in April:
10h and 18min - Average sunshine in May:
11h and 54min - Average sunshine in June:
12h and 6min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 12min - Average sunshine in September:
9h and 48min - Average sunshine in October:
8h and 42min - Average sunshine in November:
7h and 24min - Average sunshine in December:
7h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days
Swansea, AZ
- Average sunshine days in January:
28.2 days - Average sunshine days in February:
25.3 days - Average sunshine days in March:
28.5 days - Average sunshine days in April:
27.6 days - Average sunshine days in May:
29.3 days - Average sunshine days in June:
28.2 days
- Average sunshine days in July:
20.2 days - Average sunshine days in August:
20.8 days - Average sunshine days in September:
23 days - Average sunshine days in October:
26.8 days - Average sunshine days in November:
28.2 days - Average sunshine days in December:
26.8 days
The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (20.2 days).
Average UV index
Swansea, AZ
The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Swansea, AZ
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility
Swansea, AZ
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
