Weather in Alotau in May: temperature, climate, what to do?

April Best time to visit Alotau June

Alotau in May in summary

Fair weather

Min 25°C Max 28°C 232 mm 13 day(s) 85% 41% 29°C UV 6 7.7 h/day

Possible activities in May

Beach and swimmingAnimal observationDiving and snorkelingWatersports

Practical guidelines

Low crowds 06:05 17:44

Hourly weather

Average weather in Alotau in May 2027

Fair weather

The weather in Alotau in May 2027 is based on statistical data from previous years in May. This allows you to forecast the weather in May 2027. Check the hourly statistics (6:00, 9:00, 12:00, 15:00, 18:00, 21:00, 0:00 and 3:00), with the associated average temperature, for the whole month, and also, by navigating the tabs, for the beginning, middle and end of the month.

From 1st to 31 May 2027

Dominant weather

Moderate rain at times

10 days out of 31 (32%)

25.4°C

Other common conditions

Partly Cloudy

10 days out of 31 (32%)

Clear/Sunny

8 days out of 31 (25%)

Heavy rain

2 days out of 31 (6%)

Dominant weather

Moderate rain at times

11 days out of 31 (35%)

25.2°C

Other common conditions

Partly Cloudy

9 days out of 31 (29%)

Clear/Sunny

8 days out of 31 (25%)

Heavy rain

2 days out of 31 (6%)

Dominant weather

Moderate rain at times

12 days out of 31 (38%)

25.5°C

Other common conditions

Partly Cloudy

8 days out of 31 (25%)

Clear/Sunny

8 days out of 31 (25%)

Heavy rain

2 days out of 31 (6%)

Dominant weather

Moderate rain at times

12 days out of 31 (38%)

27.1°C

Other common conditions

Partly Cloudy

8 days out of 31 (25%)

Clear/Sunny

7 days out of 31 (22%)

Heavy rain

3 days out of 31 (9%)

12h

Dominant weather

Moderate rain at times

13 days out of 31 (41%)

27.6°C

Other common conditions

Clear/Sunny

7 days out of 31 (22%)

Heavy rain

5 days out of 31 (16%)

Partly Cloudy

5 days out of 31 (16%)

15h

Dominant weather

Moderate rain at times

10 days out of 31 (32%)

27.4°C

Other common conditions

Heavy rain

9 days out of 31 (29%)

Clear/Sunny

8 days out of 31 (25%)

Partly Cloudy

4 days out of 31 (12%)

18h

Dominant weather

Moderate rain at times

13 days out of 31 (41%)

26.1°C

Other common conditions

Clear/Sunny

8 days out of 31 (25%)

Partly Cloudy

6 days out of 31 (19%)

Heavy rain

3 days out of 31 (9%)

21h

Dominant weather

Moderate rain at times

12 days out of 31 (38%)

25.6°C

Other common conditions

Clear/Sunny

8 days out of 31 (25%)

Partly Cloudy

7 days out of 31 (22%)

Heavy rain

3 days out of 31 (9%)

Climate

Climate of Alotau in May

Temperatures, precipitation and monthly trends help to better understand the climate in Alotau in May.

Temperatures and rain in Alotau in May

Average daily weather

Temperatures and rain day by day in May.

Minimal Average Maximums Average rainfall

Monthly temperatures

The month of May is highlighted to compare it quickly with the rest of the year.

Minimal Average Maximums

Monthly precipitation

The bar for the month under study is highlighted.

Average rainfall

About the climate in Alotau in May

The climate of Alotau in May is humid. An average of 232 mm precipitation is recorded over 23 days. The situation is wetter than the previous month: in April, an average of 190 mm is recorded over 23 days.

Temperatures are warm in Alotau in May. The average maximum temperature reaches 28°C, while the minimum falls to about 25°C. The month's average temperature is 27°C. These normals should be compared with the records recorded in Alotau in May: 30°C as a maximum in 2012 and 21°C as a minimum in 2011.

In May, the days last on average 11:39 in Alotau. The sun rises around 06:05 and sets around 17:44.

With only fair weather, the month of May is not the best month of the year, but a stay to Alotau in Papua New Guinea remains possible depending on your priorities.

Some activities remain possible even if conditions are not optimal: Beach and swimming, Animal observation, Diving and snorkeling, Watersports, Nature and landscapes and Boat trip and cruise.

Seasonal normals

Seasonal normals of Alotau in May

Check the seasonal normals in Alotau in May and compare the weather with the previous month and the following month (or the months of your choice by selecting months in the form below): temperatures, wind, rain, humidity, climate rating...

Last updated: 12/01/2026

Reference period for normals: January 2009 - December 2025

Weather data	April	May	June
Outside temperature
Average temperature	27.2°C	26.6°C	25.8°C
Maximum temperature	28.7°C	27.7°C	26.9°C
Minimum temperature	25.8°C	25.4°C	24.8°C
Record maximum temperature	31.0°C (2013)	30.0°C (2012)	30.0°C (2010)
Record low temperature	22.0°C (2009)	21.0°C (2011)	20.0°C (2011)
Number of days at +30°	5 day(s) (17%)	1 day(s) (3%)	0 day(s) (0%)
Number of days at +18°	30 day(s) (100%)	31 day(s) (100%)	30 day(s) (100%)
Number of days below 0°	0 day(s) (0%)	0 day(s) (0%)	0 day(s) (0%)
Sea temperature
Sea temperature (average)	28.6°C	27.7°C	26.9°C
Sea temperature (minimum)	27.6°C	26.7°C	26.0°C
Sea temperature (maximum)	29.9°C	28.8°C	28.0°C
Wind
Wind speed	10 km/h	13 km/h	14 km/h
Wind temperature	25.8°C	25.5°C	24.9°C
Precipitation (rain)
Precipitation	189.9 mm	232.1 mm	239.4 mm
Number of days with precipitation	23 day(s) (77%)	23 day(s) (74%)	24 day(s) (80%)
Number of days with significant precipitation (greater than 5 mm)	11 day(s) (36%)	13 day(s) (43%)	12 day(s) (40%)
Record precipitation in one day	93.4 mm (2014)	133.3 mm (2020)	120.4 mm (2014)
Other weather data
Humidity	83%	85%	86%
Visibility	9.4 km	9.4 km	9.3 km
Cloud cover	35%	41%	46%
UV index	7	6	6
Daily sunshine	9h	8h	7h
Sunrise and sunset
Sunrise time	06h02	06h05	06h13
Sunset time	17h54	17h44	17h45
Day length	11h52	11h39	11h32
Our opinion on the climate in May
The review of Where And When	favourable weather	fair weather	favourable weather

Activities and events

What to do in Alotau in May?

Possible activities in May

Beach and swimmingAnimal observationDiving and snorkelingWatersportsNature and landscapesBoat trip and cruise

Observed weather

What was the weather like in Alotau in May last?

Find the observed weather calendar in Alotau in May 2025, with each day’s weather, temperatures and precipitation.

Mon.	Tue.	Wed.	Thu.	Fri.	Sat.	Sun.
			1 Cloudy 26°C29°C0.0 mm	2 Patchy rain nearby 26°C29°C0.6 mm	3 Patchy rain nearby 26°C29°C0.9 mm	4 Cloudy 26°C29°C0.5 mm
5 Patchy rain nearby 26°C28°C2.6 mm	6 Patchy rain nearby 26°C28°C1.5 mm	7 Moderate rain at times 26°C28°C14.6 mm	8 Moderate or heavy rain shower 26°C29°C9.3 mm	9 Moderate or heavy rain shower 25°C27°C21.8 mm	10 Moderate or heavy rain shower 25°C27°C4.6 mm	11 Moderate or heavy rain shower 24°C28°C5.2 mm
12 Patchy rain nearby 25°C29°C1.5 mm	13 Patchy rain nearby 25°C29°C1.6 mm	14 Moderate or heavy rain shower 26°C29°C5.8 mm	15 Moderate or heavy rain shower 25°C28°C3.2 mm	16 Patchy rain nearby 26°C28°C0.4 mm	17 Cloudy 26°C28°C19.4 mm	18 Heavy rain at times 26°C29°C2.2 mm
19 Patchy rain nearby 25°C29°C2.7 mm	20 Moderate or heavy rain shower 25°C30°C2.2 mm	21 Patchy rain nearby 26°C29°C1.7 mm	22 Moderate or heavy rain shower 26°C28°C3.2 mm	23 Moderate rain at times 26°C27°C4.1 mm	24 Patchy rain nearby 26°C29°C5.2 mm	25 Light rain shower 26°C27°C3.2 mm
26 Patchy rain nearby 24°C29°C1.5 mm	27 Patchy rain nearby 26°C28°C0.3 mm	28 Clear/Sunny 25°C29°C0.0 mm	29 Patchy rain nearby 25°C28°C0.4 mm	30 Patchy rain nearby 25°C29°C0.5 mm	31 Clear/Sunny 25°C29°C0.1 mm

Nearby

Where to go near Alotau in May?

Compare cities and destinations near Alotau in May to find another travel stop, a nearby alternative or a logical continuation of your stay in Alotau.

adverse weather

Popondetta in May

fair weather

Port Moresby in May

adverse weather

Kimbe in May

fair weather

Lae in May

adverse weather

Rabaul in May

fair weather

Madang in May

adverse weather

Wewak in May

Best times to visit Alotau All cities in Papua New Guinea in May

Every month

26°C 29°C 183 mm 12.3 h/day

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Frequently asked questions

Travel to to Alotau in May: your frequently asked questions

Short answers to the questions we ask ourselves before booking for this month.

It's an average period, nothing special. Conditions are mediocre in Alotau in May, which ranks this month 12th out of 12. The choice of region will make a real difference.

Expect an average of 28°C during the day and 25°C at night, with about 232 mm of precipitation spread over 13 rainy days.

Yes: the sea is 28°C on average in May, a pleasant temperature for swimming.

Expect about 7.7 hours of sunshine per day on average for this month.

No activity stands out as ideal this month, but conditions remain acceptable for Beach and swimming, Animal observation, Diving and snorkeling and Watersports.

No: this month is in Low crowds, with a visitor index of 33/100. It is one of the quietest periods of the year.

If your dates are flexible, the most favorable months in Alotau are: April, June, July, August, September, October, November and December. Compare them before finalizing your departure.

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Alotau in May 2027: weather, temperatures and activities

Is it worth visiting Alotau in May?

Page summary

Average weather in Alotau in May 2027