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Sidney in May: Weather, Average temperature and Climate

Take a look at past year’s weather for Sidney in May and see if it is worth visiting.
Check flight prices to Sidney on Avionero:
May

Weather in Sidney in May 2026

Good Weather
Mild
🌧️
Rainy
Are you considering a trip to Sidney in May? Well, the weather is usually on your side with an average maximum temperature of +70°F and about 7 sunny days. Just keep in mind that there may be some rain, with an average of 15 rainy days and 70 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+70°F
Avg. max. temperature
+19°F
Min.
+99°F
Max.
70 mm
Total precipitation
58%
Avg. humidity
3 m/s
Avg. wind
7 ☀️
Sunny Days
8 ⛅️
Cloudy
15 🌦
Rainy
Our opinion: Sidney has good weather in May.

Average temperature in Sidney in May

Here are the expected maximum, average and minimum temperatures in Sidney for May based on the historical data.
Last Year
Historical Data

The temperature in May is +75°F on average, with a range between a maximum of +86°F during the day and a minimum of +32°F at night.

The average maximum temperature goes up 30% by the end of the month, compared with the beginning of the month, from +66°F to +82°F.

Is Sidney warm or cold in May?

Sidney is typically mild in May.

Maximum temperatures go up compared to the previous month from +57°F to +70°F. The minimum temperature also goes up from +34°F to +45°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how May is compared to other months in Sidney:

Climate in Sidney in May

Sidney weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+57°F+70°F+79°F
Min. temperature
0°F+19°F+36°F
Max. temperature
+91°F+99°F+106°F
Rainfall
29 mm70 mm72 mm
Wind
4 m/s3 m/s3 m/s
Humidity
59%58%60%
Air pressure
1014 HPa1012 HPa1010 HPa
Sunny days
778
Cloudy days
985
Rainy days
101516
Snowy days
410

May weather is still as good as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +57°F to +70°F during the day. Prepare for more rain. Average rainfall goes from 29 mm to 70 mm. It feels drier, as humidity decreases from 59% to 58%. Winds are calmer in comparison to April, going down from 4 m/s to 3 m/s on average. The amount of sunny days stay about the same, averaging 7 sunny days during the month.

June brings much the same weather, it remains good.

Wind

Wind speed in Sidney in May based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Sidney is gradually increasing during May, going from 2 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Sidney based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in May stands at 48%, leading to total precipitation of around 116 mm. The maximum amount of rainfall per day is around 32 mm, which is moderate rain. May is a pretty wet month with over 15 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
May is one of the rainiest months in Sidney, here is a comparison with other months, total mm:
Sidney wettest month is June, where a typical day has a 53% chance of precipitation and 72 mm of rainfall per day. January, on the other hand, is the driest month with a mere 3% chance of precipitation and 1 mm of rainfall per day.

Snow

Amount of snow in mm during May in Sidney based on historical data.
Last Year
Historical Data
The chance of snow on a typical day in May is 0%, for a monthly total of around 0 mm.

Here’s how May is compared with other months in the amount of snow, total mm:

How was the weather last May in Sidney?

This is the weather in Sidney in May 2024:
1 May
☀️
+66°F
2 May
☀️
+74°F
3 May
☀️
+81°F
4 May
☀️
+80°F
5 May
☀️
+78°F
6 May
☁️
+70°F
7 May
☁️
+65°F
8 May
☁️
+65°F
9 May
☀️
+73°F
10 May
☀️
+75°F
11 May
🌧️
+75°F
12 May
🌧️
+61°F
13 May
🌧️
+55°F
14 May
☀️
+74°F
15 May
☀️
+77°F
16 May
☀️
+81°F
17 May
🌫️
+81°F
18 May
☁️
+66°F
19 May
☀️
+70°F
20 May
☀️
+80°F
21 May
☀️
+80°F
22 May
☀️
+86°F
23 May
☀️
+85°F
24 May
☁️
+85°F
25 May
☀️
+84°F
26 May
🌧️
+80°F
27 May
🌧️
+81°F
28 May
☀️
+81°F
29 May
☀️
+80°F
30 May
☀️
+80°F
31 May
☀️
+82°F
In May 2024 Sidney had 20 sunny days, 5 cloudy days, and 5 rainy days. The average maximum temperature was +75°F, with an absolute maximum of +86°F and a minimum of +55°F. The average humidity was 62%, with a maximum of 97% and a minimum of 12%. The average wind speed was 3 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change Over the Years

This is how Sidney climate has changed over the last 43 years.

The climate in Sidney in May has not changed that much over the last 43 years.

The average temperature was the lowest in 1996 (+51°F) and the highest in 2021 (+61°F). The driest year was 1984 with only 161 mm of rainfall, and the wettest year was 2019 with 602 mm.

FAQ

Frequently asked questions about the weather in Sidney in May:

Is May a good time to visit Sidney?

May is a really good time to go to Sidney. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Sidney.

Can you sunbathe in Sidney in May?

May has mild temperatures in Sidney. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Is Sidney rainy in May?

Sidney is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Sidney in May?

Usually, it’s not very sunny in Sidney in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in USA

Check out the weather for other cities in USA.

Monthly weather in Sidney

Source of the data

For this page, we’ve looked at the typical weather in Sidney, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.