Forth, Australia experiences average highs of 16°C (61°F) and lows of 8°C (46°F) throughout the year. Rainfall is moderate, averaging about 10 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have stayed broadly stable across the available records.
Forth, Australia Weather & Climate 2026
Monthly climate averages for Forth, Australia. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Jul–Nov At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.3/10
Best: January, February, March
UV Index
5
Low
Temperature 16°C / 8°C
Feels Like 14°C / 6°C
Rainy Days 10
Rainfall 74 mm
Sunshine 9 h
Humidity 76%
Wind Speed 17 km/h
Dew Point 8°C
Frost Days 1 days
Hottest Month
23°C
January
Avg Low 13°C
Rain 9 days
Coldest Month
5°C
July
Avg High 11°C
Rain 14 days
Driest Month
7 days
February
Avg High 21°C
Avg Low 12°C
Windiest Month
19 km/h
September (Gusts 49)
Sea Temperature
12°C – 19°C
Warmest water: February (
19.2°C
)
Worst Time to Visit
Consider avoiding July, August due to frequent rain.
Sun Position
Sunrise 07:39
Daylight 9.2h
Sunset 16:52
Live conditions —
Forth on the map · live conditions
Forth, Australia
- Continent
- Oceania
- Country
- Australia
- City
- Forth
- Population
- 680
- Coordinates
- -41.21°, 146.23°
Seasonal Breakdown
Spring
Sep–Nov
Avg High 15°C
Avg Low 7°C
Rain 12 days/mo
Summer
Dec–Feb
Avg High 21°C
Avg Low 12°C
Rain 8 days/mo
2/3 best months
Autumn
Mar–May
Avg High 17°C
Avg Low 9°C
Rain 9 days/mo
1/3 best months
Winter
Jun–Aug
Avg High 11°C
Avg Low 5°C
Rain 12 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
High Low Shaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 23°C / 13°C . Feb: 21°C / 12°C . Mar: 20°C / 11°C . Apr: 17°C / 9°C . May: 13°C / 7°C . Jun: 11°C / 5°C . Jul: 11°C / 5°C . Aug: 12°C / 5°C . Sep: 13°C / 6°C . Oct: 15°C / 7°C . Nov: 18°C / 9°C . Dec: 20°C / 11°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 65 mm. Feb: 48 mm. Mar: 55 mm. Apr: 66 mm. May: 72 mm. Jun: 89 mm. Jul: 98 mm. Aug: 86 mm. Sep: 81 mm. Oct: 102 mm. Nov: 70 mm. Dec: 55 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 68%. Feb: 69%. Mar: 74%. Apr: 78%. May: 81%. Jun: 85%. Jul: 84%. Aug: 82%. Sep: 78%. Oct: 75%. Nov: 72%. Dec: 68%.
Monthly Wind Speed
Wind Speed Gusts
Bar chart showing monthly wind speed. Jan: 17 km/h . Feb: 17 km/h . Mar: 16 km/h . Apr: 16 km/h . May: 16 km/h . Jun: 16 km/h . Jul: 17 km/h . Aug: 18 km/h . Sep: 19 km/h . Oct: 19 km/h . Nov: 18 km/h . Dec: 19 km/h .
Sunshine
Sunshine
Sunshine: Jan: 12h. Feb: 11h. Mar: 10h. Apr: 8h. May: 7h. Jun: 6h. Jul: 7h. Aug: 8h. Sep: 9h. Oct: 10h. Nov: 12h. Dec: 12h.
Sea Temperature
Sea Temperature swim
Line chart showing monthly sea temperature. Jan: 19°C . Feb: 19°C . Mar: 19°C . Apr: 18°C . May: 16°C . Jun: 14°C . Jul: 13°C . Aug: 12°C . Sep: 13°C . Oct: 13°C . Nov: 15°C . Dec: 16°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 8. Feb: UV 8. Mar: UV 6. Apr: UV 4. May: UV 3. Jun: UV 2. Jul: UV 2. Aug: UV 3. Sep: UV 5. Oct: UV 6. Nov: UV 7. Dec: UV 8.
Monthly Daylight Hours
Daylight 12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 41 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Feb 2025 · 22°C | Jan · 23°C |
| Coldest month | Jun 2025 · 4°C | Jul · 5°C |
| Wettest month | Sep 2025 · 127 mm | Oct · 102 mm |
| Windiest month | Sep 2025 · 23 km/h | Sep · 19 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March best
Good April
Good May
Fair June
Fair July
Poor August
Fair September
Fair October
Fair November
Good December
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 23°C / 13°C | 22°C / 12°C | 9days (65 mm) Wet | 11.9h Excellent | 68% Muggy | 7.7 Very High | Excellent | View Details |
| February best | 21°C / 12°C | 20°C / 11°C | 7days (48 mm) Good | 11.2h Excellent | 69% Muggy | 7.5 Very High | Excellent | View Details |
| March best | 20°C / 11°C | 19°C / 10°C | 8days (55 mm) Wet | 9.8h Good | 74% Muggy | 5.9 High | Good | View Details |
| April | 17°C / 9°C | 14°C / 7°C | 8days (66 mm) Wet | 8.3h Good | 78% Humid | 4.1 Moderate | Good | View Details |
| May | 13°C / 7°C | 11°C / 4°C | 10days (72 mm) Wet | 7.3h Good | 81% Humid | 2.7 Moderate | Fair | View Details |
| June | 11°C / 5°C | 9°C / 2°C | 10days (89 mm) Wet | 6.4h Fair | 85% Humid | 2 Low | Fair | View Details |
| July | 11°C / 5°C | 8°C / 2°C | 14days (98 mm) Wet | 6.8h Fair | 84% Humid | 2.1 Moderate | Poor | View Details |
| August | 12°C / 5°C | 9°C / 2°C | 13days (86 mm) Wet | 7.8h Good | 82% Humid | 3 Moderate | Fair | View Details |
| September | 13°C / 6°C | 10°C / 3°C | 12days (81 mm) Wet | 9h Good | 78% Humid | 4.5 Moderate | Fair | View Details |
| October | 15°C / 7°C | 13°C / 4°C | 12days (102 mm) Wet | 10.2h Excellent | 75% Muggy | 6.3 High | Fair | View Details |
| November | 18°C / 9°C | 16°C / 7°C | 11days (70 mm) Wet | 11.5h Excellent | 72% Muggy | 7 High | Good | View Details |
| December | 20°C / 11°C | 19°C / 9°C | 8days (55 mm) Wet | 12.2h Excellent | 68% Muggy | 8.1 Very High | Good | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Forth are January, February, March, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Forth, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Forth is January, with average daytime highs of 23°C (73°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Forth is July, with average overnight lows of 5°C (41°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Forth is October, averaging 102mm of precipitation across 12 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Forth runs through July, August, September, October, with the heaviest rainfall in July. Based on 10-year averages for Forth.
Forth receives approximately 112 sunshine hours per year. The sunniest month is December with around 12 hours. Based on climate data for Forth.
The least favorable months to visit Forth are July, August, primarily due to frequent rain. For the best conditions, consider January, February, March instead.
The annual average UV index in Forth is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Forth is 76%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Sea temperatures in Summer average 16°C (61°F), which most swimmers will find too cold without a wetsuit.
Forth rarely sees significant snowfall but does experience frost, averaging 1 frost days during the colder months.
Average wind speeds in Forth are 17 km/h (11 mph). The windiest month is September with peak winds reaching 19 km/h (12 mph) (gusts up to 49 km/h / 30 mph).
Forth averages 2 clear-sky days per month with overall cloud cover around 59%. The clearest skies occur in January.
The annual average dew point in Forth is 8°C (46°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Forth has a Oceanic climate, classified as Cfb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Forth ranges from 6°C (43°F) to 14°C (57°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
June is not the best time to visit Forth, with a climate score of 5/10. Consider visiting during January, February, March instead for better conditions.
For June in Forth, pack Layered clothing, Light jacket, Umbrella, Waterproof jacket, Comfortable walking shoes. With average highs of 11°C (53°F) and 10 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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