Saint John, Dominica Weather

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

Current conditions

Updated:
23°C
73.4°F
°C °F

Condition: Partly Cloudy

Pressure: 996 hPa

Feel like: 26 °C

Temperature: 23°C

Cloud: 52%

Humidity: 84%

Wind: E - 9 km/h

Visibility: 24.14 km

Weather forecast

Tue
16 Dec
23°C / 27°C
Partly Cloudy
Wed
17 Dec
23°C / 26°C
Overcast
Thu
18 Dec
22°C / 25°C
Overcast
Fri
19 Dec
22°C / 26°C
Drizzle
Sat
20 Dec
22°C / 26°C
Drizzle
Hourly forecast today:
10:00 AM
20° / 23°
20° / 23°
Partly Cloudy
84% 46 km/h
11:00 AM
20° / 23°
20° / 23°
Partly Cloudy
84% 44 km/h
12:00 PM
20° / 24°
20° / 24°
Partly Cloudy
81% 42 km/h
13:00 PM
20° / 24°
20° / 24°
Partly Cloudy
76% 42 km/h
14:00 PM
20° / 25°
20° / 25°
Partly Cloudy
72% 42 km/h
15:00 PM
20° / 26°
20° / 26°
Partly Cloudy
69% 51 km/h
16:00 PM
20° / 26°
20° / 26°
Partly Cloudy
67% 40 km/h
17:00 PM
20° / 26°
20° / 26°
Partly Cloudy
66% 36 km/h
18:00 PM
20° / 26°
20° / 26°
Partly Cloudy
66% 33 km/h
19:00 PM
19° / 26°
19° / 26°
Partly Cloudy
67% 34 km/h
20:00 PM
20° / 25°
20° / 25°
Partly Cloudy
70% 36 km/h

30 Day Averages and Extremes

  • Average high 25.9°C
  • Average low 22.57°C
  • Hottest day 27°C (02 December 2025)
  • Coldest day 21°C (24 December 2025)
  • Average humidity 79.17%
  • Days with precipitation 28 days
  • Highest precipitation 45 mm (24 December 2025)

Yesterday's Data

  • Max: 26°C
  • Min: 23°C
  • Total Precipitation: 0 mm

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

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

Rainfall in Saint John in the coming days

Saint John Climate Summary

Saint John features a Tropical rainforest (Köppen classification: Af), with an average annual temperature of 27.34ºC (81.21ºF), which is about 0.03% higher than the national average for Dominica. Annually, the city experiences approximately 57.1 millimeters (2.25 inches) of rainfall, spread across 147.29 rainy days, accounting for 40.35% of the year.

Longitude 15.5763757
Latitude -61.4318742
Yearly high temperature 27.83ºC (82.09ºF)
Yearly low temperature 26.38ºC (79.48ºF)
Hottest month August 28.91ºC (84.04ºF)
Coldest month January 24.91ºC (76.84ºF)
Yearly precip 57.1mm (2.25in)
Days with rainfall 147.29 days (40.35%)
Driest month February (74.32%)
Wettest month September (75.55%)

Weather averages by month

Month High / Low (°C) Rain
January 26.38° / 24.91° 8.55 days
February 26.25° / 24.64° 8.27 days
March 26.7° / 25.26° 7.55 days
April 27.28° / 25.86° 12.64 days
May 28.03° / 26.58° 13.18 days
June 28.46° / 27.04° 9.64 days
July 28.55° / 27.16° 13.91 days
August 28.91° / 27.43° 15.82 days
September 29.07° / 27.69° 14.64 days
October 28.87° / 27.35° 16.73 days
November 28.15° / 26.67° 15.0 days
December 27.34° / 25.93° 11.36 days

Saint John's weather

Frequently asked questions

1. What is the hottest month in Saint John?

August has the highest average monthly temperature (daily mean of 28.91ºC) and January are the coolest (daily mean of 24.91ºC).

2. What should I wear in Saint John today?

For today's very hot weather in Saint John, with the high temperatures above 26ºC (78.8ºF), consider wearing:
- Breathable shorts or skirts
- UV-protective sunglasses
- Wide-brimmed sun hat
- Loose and airy fabrics like linen or cotton

Temperature

Early
20°C / 23°C
Morning
20°C / 23°C
Afternoon
20°C / 26°C
Evening
20°C / 25°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 444
  • CO 99
  • NH3 0
  • NO2 0
  • O3 60
  • PM10 10
  • PM25 6
  • SO2 0
  • CH4 1,346

Sunrise / Sunset

10:24
21:37