Climate Overview
The climate in Annotto Bay is hot. The average annual temperature is 26°C and approximately 1167mm of precipitation falls per year. Annotto Bay receives a notable amount of rainfall throughout the year, including during its driest month. Annotto Bay is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are January, February, March, when temperatures can drop to 22°C.
Temperature
Annotto Bay has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is July, when average highs reach 31°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 22°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.
Precipitation
Annotto Bay is a moderately rainy area, receiving approximately 1167mm of precipitation annually, which averages out to around 97mm per month. The wettest month is October, averaging 194mm of rainfall. November and May also tend to see above-average precipitation. The driest month is July, with just 40mm. That's 154mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Annotto Bay is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.
Seasons
93 days until Autumn
It is currently summer in Annotto Bay, which began on June 21, 2026. Annotto Bay is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 31°C, while the coldest stretch bottoms out in January near 22°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.
Spring
Temperatures range from 22 to 29°C. Rainfall is heavy, totalling around 306mm across the season with a monthly average of 102mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 31°C. Precipitation is moderate at around 165mm for the season, averaging 55mm per month. Winds are generally light, averaging 3km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 482mm across the season with a monthly average of 161mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 22 to 28°C. Precipitation is moderate at around 214mm for the season, averaging 71mm per month. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Annotto Bay is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 70mm per month. By contrast, July can be uncomfortably hot with temperatures reaching 31°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Annotto Bay based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
