Saint Mary, Jamaica Weather

  1. Saint Mary, Jamaica Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Saint Mary over the next 12 hours
  7. Temperature and possibility of rain in Saint Mary in the coming days
  8. Rainfall in Saint Mary in the coming days
  9. Saint Mary Weather Summary
  10. Weather averages by month
  11. Saint Mary's weather
  12. Frequently asked questions
  13. Comments
Saint Mary, Weather
(Photo by Dalelan Anderson on Unsplash)

Current conditions

Updated:
24°C
75.2°F
°C °F

Condition: Mainly Clear

Pressure: 985 hPa

Feel like: 26 °C

Temperature: 24°C

Cloud: 44%

Humidity: 76%

Wind: NE - 10 km/h

Visibility: 24.14 km

Weather forecast

Sat
13 Dec
19°C / 27°C
Slight Rain Showers
Sun
14 Dec
18°C / 27°C
Slight Rain Showers
Mon
15 Dec
19°C / 27°C
Fog
Tue
16 Dec
19°C / 28°C
Overcast
Wed
17 Dec
19°C / 26°C
Drizzle
Hourly forecast today:
14:00 PM
19° / 24°
19° / 24°
Mainly Clear
76% 34 km/h
15:00 PM
19° / 25°
19° / 25°
Mainly Clear
68% 37 km/h
16:00 PM
19° / 26°
19° / 26°
Partly Cloudy
64% 39 km/h
17:00 PM
19° / 26°
19° / 26°
Partly Cloudy
63% 42 km/h
18:00 PM
19° / 26°
19° / 26°
Partly Cloudy
63% 43 km/h
19:00 PM
19° / 26°
19° / 26°
Partly Cloudy
65% 42 km/h
20:00 PM
19° / 26°
19° / 26°
Partly Cloudy
68% 40 km/h
21:00 PM
19° / 25°
19° / 25°
Partly Cloudy
72% 37 km/h
22:00 PM
19° / 24°
19° / 24°
Partly Cloudy
77% 35 km/h
23:00 PM
19° / 22°
19° / 22°
Partly Cloudy
83% 32 km/h
00:00 AM
19° / 21°
19° / 21°
Partly Cloudy
88% 30 km/h

30 Day Averages and Extremes

  • Average high 25.9°C
  • Average low 17.93°C
  • Hottest day 28°C (27 November 2025)
  • Coldest day 0°C (23 December 2025)
  • Average humidity 82.27%
  • Days with precipitation 22 days
  • Highest precipitation 59 mm (23 December 2025)

Yesterday's Data

  • Max: 27°C
  • Min: 18°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Saint Mary over the next 12 hours

Temperature and possibility of rain in Saint Mary in the coming days

Rainfall in Saint Mary in the coming days

Saint Mary Climate Summary

Saint Mary features a Tropical wet and dry or savanna (Köppen classification: Aw), with an average annual temperature of 27.04ºC (80.67ºF), which is about 0.21% higher than the national average for Jamaica. Annually, the city experiences approximately 104.02 millimeters (4.1 inches) of rainfall, spread across 203.35 rainy days, accounting for 55.71% of the year.

Longitude 18.3092711
Latitude -76.964306
Yearly high temperature 28.32ºC (82.98ºF)
Yearly low temperature 25.1ºC (77.18ºF)
Hottest month July 29.64ºC (85.35ºF)
Coldest month November 25.07ºC (77.13ºF)
Yearly precip 104.02mm (4.1in)
Days with rainfall 203.35 days (55.71%)
Driest month February (77.67%)
Wettest month October (77.43%)

Weather averages by month

Month High / Low (°C) Rain
January 26.64° / 23.51° 13.0 days
February 26.76° / 23.41° 12.09 days
March 26.72° / 23.41° 14.36 days
April 27.81° / 24.41° 16.82 days
May 28.52° / 25.28° 20.18 days
June 29.33° / 25.97° 12.45 days
July 29.64° / 26.26° 16.18 days
August 30.01° / 26.6° 19.82 days
September 29.99° / 26.74° 22.36 days
October 29.36° / 26.26° 23.91 days
November 27.94° / 25.07° 17.91 days
December 27.12° / 24.25° 14.27 days

Saint Mary's weather

Frequently asked questions

1. What is the hottest month in Saint Mary?

July has the highest average monthly temperature (daily mean of 29.64ºC) and November are the coolest (daily mean of 25.07ºC).

2. What should I wear in Saint Mary today?

For today's very hot weather in Saint Mary, with the high temperatures above 26ºC (78.8ºF), consider wearing:
- Thin, moisture-wicking socks
- Lightweight t-shirt or tank top
- UV-protective sunglasses
- Wide-brimmed sun hat

Temperature

Early
19°C / 19°C
Morning
18°C / 19°C
Afternoon
19°C / 25°C
Evening
19°C / 25°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 0
  • CO 154
  • NH3 0
  • NO2 1
  • O3 88
  • PM10 10
  • PM25 8
  • SO2 1
  • CH4 0

Sunrise / Sunset

11:30
22:33