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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January is an agreeable summer month in Irwell, New Zealand, with an average temperature fluctuating between 21.3°C (70.3°F) and 11.9°C (53.4°F). January is the month when Irwell experiences its warmest temperatures, averaging a high of 21.3°C (70.3°F) and a low of 11.9°C (53.4°F). Weather in January »
Weather in February
The last month of the summer, February, is another pleasant month in Irwell, New Zealand, with an average temperature fluctuating between 11.7°C (53.1°F) and 21.2°C (70.2°F). The shift into February reveals an average high-temperature of a still agreeable 21.2°C (70.2°F), closely mirroring January's climate. Weather in February »
Weather in March
The first month of the autumn, March, is still a refreshing month in Irwell, New Zealand, with an average temperature varying between 10.3°C (50.5°F) and 19°C (66.2°F). Stepping into March, Irwell records an average high-temperature of a refreshing 19°C (66.2°F), almost consistent with February. Weather in March »
Weather in April
April, like March, in Irwell, New Zealand, is another comfortable autumn month, with an average temperature varying between 16.2°C (61.2°F) and 8.3°C (46.9°F). April's presence records an average high-temperature of a still refreshing 16.2°C (61.2°F), closely mirroring March's climate. Weather in April »
Weather in May
May, the last month of the autumn in Irwell, is also a moderate month, with an average temperature fluctuating between 6.4°C (43.5°F) and 13.6°C (56.5°F). As Irwell steps into May, the average high-temperature is measured at a moderate 13.6°C (56.5°F), displaying minor differences from April's 16.2°C (61.2°F). Weather in May »
Weather in June
June, the first month of the winter in Irwell, is also a fresh month, with an average temperature ranging between max 10.7°C (51.3°F) and min 4.7°C (40.5°F). The arrival of June brings an average high-temperature of a cool 10.7°C (51.3°F), nearly identical to May's 13.6°C (56.5°F). Weather in June »
Weather in July
July, the same as June, is a cool winter month in Irwell, New Zealand, with an average temperature fluctuating between 3.8°C (38.8°F) and 10.3°C (50.5°F). July, on average, is the coldest month, registering a high temperature of 10.3°C (50.5°F) and a low of 3.8°C (38.8°F). Weather in July »
Weather in August
The last month of the winter, August, is also a fresh month in Irwell, New Zealand, with an average temperature varying between 11.8°C (53.2°F) and 4.5°C (40.1°F). The transition into August reveals an average high-temperature of a still cool 11.8°C (53.2°F), mirroring a close resemblance to July. Weather in August »
Weather in September
The first month of the spring, September, is a moderate month in Irwell, New Zealand, with temperature in the range of an average low of 4.5°C (40.1°F) and an average high of 13.2°C (55.8°F). Irwell starts September with an average high-temperature of a mild 13.2°C (55.8°F), hinting at a minimal fluctuation from August. Weather in September »
Weather in October
October, like September, is another refreshing spring month in Irwell, New Zealand, with an average temperature fluctuating between 5.6°C (42.1°F) and 15.2°C (59.4°F). Welcoming October, Irwell notes an average high-temperature of a still moderate 15.2°C (59.4°F), nearly consistent with September's 13.2°C (55.8°F). Weather in October »
Weather in November
The last month of the spring, November, is a refreshing month in Irwell, New Zealand, with an average temperature fluctuating between 17.2°C (63°F) and 7.6°C (45.7°F). As Irwell transitions into November, the average high-temperature stands at an enjoyable 17.2°C (63°F), offering little variation from the preceding month. Weather in November »
Weather in December
December, the first month of the summer in Irwell, is also an enjoyable month, with an average temperature ranging between max 19.6°C (67.3°F) and min 10.2°C (50.4°F). Transitioning into December, Irwell experiences an average high-temperature of a still enjoyable 19.6°C (67.3°F), marking a minor shift from the preceding month. Weather in December »
Updated: Jan 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month in Irwell?
January is the warmest month, exhibiting average temperatures of 21.3°C (70.3°F) at the peak and 11.9°C (53.4°F) at the base.
What is the least humid month in Irwell?
With an average relative humidity of 70%, January is the least humid month in Irwell, New Zealand.
How many days does it rain in Irwell?
In Irwell, during the entire year, the rain falls for 114.3 days and collects up to 300mm (11.81") of precipitation.
When it does not snow in Irwell?
In Irwell, New Zealand, snow does not fall in January through May, October through December.
How much does it snow in Irwell?
Throughout the year, in Irwell, 13mm (0.51") of snow is accumulated.
What is the month with the highest UV index in Irwell?
The month with the highest UV index in Irwell, New Zealand, is January, with an average maximum UV index of 5.
When is Daylight Saving Time (DST) in Irwell?
On Sunday, 07. April 2024, at 3:00 am, Daylight Saving Time ends, and the time zone changes from NZDT to NZST. The next Daylight Saving Time starts on Sunday, 29. September 2024, at 2:00 am, and the time zone reverts from NZST to NZDT.
When is the lowest UV index in Irwell?
April through September, with an average maximum UV index of 3, are months with the lowest UV index in Irwell.
What is the most humid month in Irwell?
June is the most humid month, with an average relative humidity of 81%.
When does it snow in Irwell?
Months with snowfall are June through September.
What is the month with the shortest days in Irwell?
With an average of 9h and 0min of daylight, June has the shortest days of the year in Irwell.
What is the month with the least sunshine in Irwell?
June has the least sunshine of the year, with an average of 5.1h of sunshine.
What are the coldest months in Irwell?
July is the coldest month of the year in Irwell, New Zealand, registering average temperatures as high as 10.3°C (50.5°F) and as low as 3.8°C (38.8°F).
What is the snowiest month in Irwell?
August is the month with the most snowfall. Snow falls for 0.3 days and accumulates 5mm (0.2") of snow.
What is the driest month in Irwell?
The month with the least rainfall in Irwell is September, when the rain falls for 8.2 days and typically collects 14mm (0.55") of precipitation.
What is the rainiest month in Irwell?
October is the month with the most rainfall. Rain falls for 12.5 days and accumulates 38mm (1.5") of precipitation.
When are the longest days in Irwell?
The month with the longest days is December, with an average of 15h and 24min of daylight.
What month has the most sunshine in Irwell?
The month with the most sunshine is December, with an average of 10.4h of sunshine.
Average temperature
Irwell, New Zealand
The warmest month (with the highest average high temperature) is January (21.3°C).
The month with the lowest average high temperature is July (10.3°C).
The month with the highest average low temperature is January (11.9°C).
The coldest month (with the lowest average low temperature) is July (3.8°C).
Average pressure
Irwell, New Zealand
- Average pressure in January:
1011.1mbar - Average pressure in February:
1014.4mbar - Average pressure in March:
1016.9mbar - Average pressure in April:
1015.9mbar - Average pressure in May:
1012.8mbar - Average pressure in June:
1015mbar
- Average pressure in July:
1013.2mbar - Average pressure in August:
1012.3mbar - Average pressure in September:
1011mbar - Average pressure in October:
1011.1mbar - Average pressure in November:
1010.9mbar - Average pressure in December:
1011.9mbar
The month with the highest atmospheric pressure is March (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed
Irwell, New Zealand
- Average wind speed in January:
15.3km/h - Average wind speed in February:
14.2km/h - Average wind speed in March:
13.7km/h - Average wind speed in April:
12.9km/h - Average wind speed in May:
13.4km/h - Average wind speed in June:
12.7km/h
- Average wind speed in July:
12.9km/h - Average wind speed in August:
12.4km/h - Average wind speed in September:
13.8km/h - Average wind speed in October:
14.2km/h - Average wind speed in November:
14.3km/h - Average wind speed in December:
14.7km/h
The windiest month (with the highest average wind speed) is January (15.3km/h).
The calmest month (with the lowest average wind speed) is August (12.4km/h).
Average humidity
Irwell, New Zealand
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is January (70%).
Average rainfall
Irwell, New Zealand
The wettest month (with the highest rainfall) is October (38mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days
Irwell, New Zealand
- Average rainfall days in January:
10 days - Average rainfall days in February:
8.2 days - Average rainfall days in March:
8.5 days - Average rainfall days in April:
10.2 days - Average rainfall days in May:
8 days - Average rainfall days in June:
9.6 days
- Average rainfall days in July:
8.6 days - Average rainfall days in August:
9.3 days - Average rainfall days in September:
8.2 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
11 days - Average rainfall days in December:
10.2 days
The month with the highest number of rainy days is October (12.5 days).
The month with the least rainy days is May (8 days).
Average snowfall
Irwell, New Zealand
The month with the highest snowfall is August (5mm).
The months with the least snowfall are January, February, March, April, May, October, November and December (0mm).
Average snowfall days
Irwell, New Zealand
- Average snowfall days in January:
0 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0.3 days
- Average snowfall days in July:
0.2 days - Average snowfall days in August:
0.3 days - Average snowfall days in September:
0.1 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The months with the highest number of snowfall days are June and August (0.3 days).
The months with the least snowfall days are January, February, March, April, October, November and December (0 days).
Average daylight / Average sunshine
Irwell, New Zealand
- Average daylight in January:
15h and 0min - Average daylight in February:
13h and 5min - Average daylight in March:
12h and 2min - Average daylight in April:
10h and 5min - Average daylight in May:
9h and 4min - Average daylight in June:
9h and 0min
- Average daylight in July:
9h and 2min - Average daylight in August:
10h and 2min - Average daylight in September:
11h and 5min - Average daylight in October:
13h and 2min - Average daylight in November:
14h and 4min - Average daylight in December:
15h and 2min
The month with the longest days is December (Average daylight: 15h and 24min).
The month with the shortest days is June (Average daylight: 9h and 0min).
- Average sunshine in January:
9h and 4min - Average sunshine in February:
7h and 4min - Average sunshine in March:
7h and 4min - Average sunshine in April:
7h and 2min - Average sunshine in May:
7h and 3min - Average sunshine in June:
5h and 1min
- Average sunshine in July:
6h and 3min - Average sunshine in August:
7h and 0min - Average sunshine in September:
7h and 4min - Average sunshine in October:
7h and 4min - Average sunshine in November:
8h and 3min - Average sunshine in December:
10h and 2min
The month with the most sunshine is December (Average sunshine: 10h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 6min).
Average sunshine days
Irwell, New Zealand
- Average sunshine days in January:
18.8 days - Average sunshine days in February:
18 days - Average sunshine days in March:
19.8 days - Average sunshine days in April:
19 days - Average sunshine days in May:
21.2 days - Average sunshine days in June:
18.9 days
- Average sunshine days in July:
20.4 days - Average sunshine days in August:
20 days - Average sunshine days in September:
20 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
17.3 days - Average sunshine days in December:
18.3 days
The month with the most sunshine days is May (21.2 days).
The month with the least sunshine days is November (17.3 days).
Average UV index
Irwell, New Zealand
The month with the highest UV index is January (UV index 5).
The months with the lowest UV index are April, May, June, July, August and September (UV index 3).
Average cloud cover
Irwell, New Zealand
The month with the most cloud cover is June (Cloud cover 43).
The months with the least cloud cover are January, February, March and May (Cloud cover 37).
Average visibility
Irwell, New Zealand
The months with the highest visibility are January, February, March, April, June, July and December (10km).
The months with the lowest visibility are May, August, September, October and November (9km).
