Climate and monthly weather forecastWollongong, Australia

The climate of Wollongong

Wollongong, a coastal city in Australia, experiences a Marine West Coast climate according to the Köppen climate classification, otherwise known as a Cfb climate. This designation signals mild temperatures throughout the year, high humidity, and generous monthly averages of rainfall.

Average high temperatures waiver around the mid-20s°C during the first three months of the year, decrease to the low 20s°C in April and May, and bottom out in the high teens from June to August. A steady climb brings them back up to the mid-20s°C by December. On the flip side, average low temperatures decline from their peak near 18°C (64.4°F) in February, to around 8°C (46.4°F) in July and August, then return to the high teens by the end of the year.

Relative humidity begins around 68% in January, and drops gradually to 52% in August before it rises again. Rainfall averages over 100mm (3.94") each month from January to May, dips slightly from June to September, then exceeds 100mm (3.94") once again in October and November. Days of rainfall are most frequent from January to March and again in November and December, with somewhat fewer occurrences during the rest of the year.

Sea temperatures vary the least, from a high of 23.7°C (74.7°F) in February to a low of 18.4°C (65.1°F) in September. Daylight hours range from roughly 9.9h in June and July up to 14.4h in December.

The best time to visit Wollongong

Considering the climatic trends, the ideal time to visit Wollongong might well be during the months of October and November. While still under the influence of spring, these months provide warm temperatures, averaging from 18.3°C (64.9°F) to 22.9°C (73.2°F). Rainfall is appreciable yet not overwhelming, averaging around 100mm (3.94"). Humidity begins to rise, but on average remains below 65%. With sea temperatures around 19.1°C (66.4°F) in October and 20.7°C (69.3°F) in November, these conditions can provide a pleasant backdrop for outdoor activities and beachgoing.

The worst time to visit Wollongong

In contrast, the climatic conditions during June to August might result in a less than ideal tourism experience. The city records its lowest temperatures during this period, with averages between 8.3°C (46.9°F) and 9.4°C (48.9°F). Also, with the driest parts of the year enduring average relative humidity levels below 60%, the atmosphere may become noticeably drier. Though rainfall is not at its peak, showers can still occur on average 8.5 to 9.7 days. However, with the shortest daylight hours of the year and sea temperatures at their coolest, some activities like swimming might be less enjoyable.

Spring weather in Wollongong

Emerging from the cooler and drier winter months, spring in Wollongong sees a gradual increase in temperatures. From September to November, average highs rise from 20.3°C (68.5°F) to 22.9°C (73.2°F) and lows from 10.6°C (51.1°F) to 14.4°C (57.9°F). Similarly, average rainfall inches up from 67mm (2.64") in September to 116mm (4.57") in November. This season sees the daylight hours increase from 11.9h to 13.9h as the relative humidity maintains a moderate level below 65%.

Summer weather in Wollongong

Summers in Wollongong, spanning from December to February, are warm and humid with abundant rainfall. Average high temperatures range from 25°C (77°F) to 25.6°C (78.1°F) while average lows are from 16.5°C (61.7°F) to 18.2°C (64.8°F). They coincide with the highest amounts of rainfall with readings from 130mm (5.12") to 156mm (6.14"). In addition, the city enjoys the longest periods of daylight, averaging from 13.9h to 14.4h, making it possible to enjoy outdoor activities for longer periods.

Autumn weather in Wollongong

Autumn in Wollongong brings moderate temperatures and a reduction in rainfall. The season starts in March with averages of 24.5°C (76.1°F) for highs, and 16.7°C (62.1°F) for lows, and concludes in May with figures of 20°C (68°F) and 11.8°C (53.2°F) respectively. Rainfall amounts decrease from 160mm (6.3") in March to 106mm (4.17") in May, and the number of daylight hours drop from 12.3h in March to 10.3h.

Winter weather in Wollongong

June ushers in winter in Wollongong, offering cooler and drier conditions. Average maximum temperatures drop from 17.6°C (63.7°F) in June to 17°C (62.6°F) in July and then rise to 18.3°C (64.9°F) in August. Average minimum temperatures fall to the year's low of 8.3°C (46.9°F) to 9.4°C (48.9°F). Rainfall reaches its lowest values in winter, ranging from 63mm (2.48") to 112mm (4.41"), and the city experiences the shortest daylight hours of the year, around 9.9h to 10.1h, leaving less time for outdoor activities.

Weather in January

Yearly weather monitoring starts with January in Wollongong, Australia, indicating the commencement of the summer season, marked by warm weather patterns and noticeable humidity levels. The months leading up to January observed temperatures reaching their peak, offering the city its brightest and warmest days. Weather in January »

Weather in February

Shifting into February, Wollongong's defined summer qualities settle into a comfortable rhythm with marginally increasing humidity. The weather stays comparatively constant, abundant rainfall persists, and the sea temperature remains warm. Weather in February »

Weather in March

March sees Wollongong weather transitioning from summer to autumn with dropping temperatures, rainfall, and daylight hours. The city experiences a pronounced reduction in daily highs and lows, signifying the approach of autumn. An estimated rainfall of 160mm (6.3"), the annual high, characterizes this month. Weather in March »

Weather in April

April marks the midpoint of the autumn season in Wollongong, noted for significant changes in temperature and a continued decrease in sea temperature and daylight hours. Compared to the preceding month, the drop in minimum and maximum temperatures gives the weather a more autumnal feel. Weather in April »

Weather in May

May represents a progression into the winter months, permeating the air with a distinctive crispness not seen in preceding months. Wollongong continues to experience fluctuating weather parameters, marked by falling temperatures and diminishing daylight hours. Weather in May »

Weather in June

June ushers in the peak of the winter season in Wollongong, characterized by a marked drop in temperature, sea temperature, and daylight hours. Weather patterns distinctly change as the temperatures hit annual lows. June experiences a minor surge in rainfall, the total rising from 106mm (4.17") in May, up to 112mm (4.41"). Weather in June »

Weather in July

As July unfolds, Wollongong weathers the heart of winter with the lowest average temperatures and sea temperatures recorded in this month. Consequently, the city confronts its coldest days in July. Meanwhile, rainfall drops to 63mm (2.48"), the lowest amount recorded throughout the year. Weather in July »

Weather in August

August heralds the advent of spring in Wollongong with a noticeable rise in temperature and sea temperature from the previous month. While the cool and crisp chill gradually eases, the weather remains relatively dry and temperatures comfortable. Weather in August »

Weather in September

September affirms its spring identity in Wollongong by maintaining a steady increase in temperature, sea temperature, and daylight hours. However, the climate remains temperate with mild fluctuations in weather parameters. As a salient feature of this month, rainfall receives a notable dip to 67mm (2.64") in measures, reinforcing the overall dry nature of the climate. Weather in September »

Weather in October

In October, Wollongong witnesses the height of the spring season with increased temperatures and lengthier daylight hours. Weather conditions consistently change from the previous month, with meaningful alterations especially in rising temperatures. Weather in October »

Weather in November

November ushers in the early signs of summer in Wollongong with temperatures on the rise along with relative humidity and daylight hours. Transitioning away from the milder autumn traits, November embraces warmer attributes. In this month, the rainfall steps up to 116mm (4.57") embodying the increasing rainfall trend witnessed towards the year-end. Weather in November »

Weather in December

In December, Wollongong climatic parameters correspond with the key summer characteristics - ample warmth, higher humidity, and extended daylight hours. With the continuation of the warm season, December presents the city with the highest number of daylight hours at 14.4 hours. Weather in December »