St. John's weather in April
In April, St. John's sees average daytime highs of 26°C and overnight lows near 25°C, with 33 mm of rain across 8.8 wet days and about 12.4 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.
Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 64% of the time in April, and the air most often feels oppressive.
Daylight stretches from about 12 h 06 min at the start of April to 12 h 36 min by month's end. Set against the rest of the year, April is St. John's's 5th-clearest and 9th-windiest month. For the whole year in context, see St. John's's year-round climate.
- Daytime high
- 26°
- 9th warmest
- Overnight low
- 25°
- 4th coldest
- Rainfall
- 33 mm
- 8.8 wet days
- Daylight
- 12 h 24 min
- 5:56 AM – 6:19 PM
- Cloud cover
- 37%
- 5th clearest
- Wind
- 24 km/h
- 9th windiest
- Solar energy
- 6.7 kWh/m²
- Travel score
- 7.2
- out of 10
St. John's is largest city of Antigua and Barbuda.
- Density
- 5,174/km²
- people per km²
- Founded
- 1666
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Day-to-day highs hold fairly steady near 26°C through the month.
A typical April day in St. John's reaches about 26°C in the afternoon and slips back to 25°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 27°C. Set against its neighbours, April runs on par with March and about 1°C cooler than May.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Avg low (°C) | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 26 | 24 |
| 2 | 26 | 25 |
| 3 | 26 | 25 |
| 4 | 26 | 25 |
| 5 | 26 | 25 |
| 6 | 26 | 25 |
| 7 | 26 | 25 |
| 8 | 26 | 25 |
| 9 | 26 | 25 |
| 10 | 26 | 25 |
| 11 | 26 | 25 |
| 12 | 26 | 25 |
| 13 | 26 | 25 |
| 14 | 26 | 25 |
| 15 | 26 | 25 |
| 16 | 26 | 25 |
| 17 | 26 | 25 |
| 18 | 26 | 25 |
| 19 | 26 | 25 |
| 20 | 26 | 25 |
| 21 | 26 | 25 |
| 22 | 26 | 25 |
| 23 | 26 | 25 |
| 24 | 26 | 25 |
| 25 | 26 | 25 |
| 26 | 26 | 25 |
| 27 | 26 | 25 |
| 28 | 26 | 25 |
| 29 | 26 | 25 |
| 30 | 26 | 25 |
How April really feels in St. John's
Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
St. John's weather by month
How April compares with the rest of the year at a glance. April is the 9th-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 24° | 32 | 10 | 11.1 | 7.3 |
| Feb | 25° / 24° | 21 | 7.1 | 11.4 | 7.7 |
| Mar | 25° / 24° | 21 | 6.6 | 11.9 | 7.8 |
| Apr | 26° / 25° | 33 | 8.8 | 12.4 | 7.2 |
| May | 27° / 26° | 62 | 12.4 | 12.8 | 6.3 |
| Jun | 27° / 26° | 51 | 12.1 | 13 | 6.1 |
| Jul | 28° / 26° | 78 | 15.9 | 12.9 | 5.8 |
| Aug | 28° / 26° | 98 | 17.8 | 12.6 | 5.4 |
| Sep | 28° / 26° | 127 | 18 | 12.1 | 4.9 |
| Oct | 28° / 26° | 132 | 18.8 | 11.6 | 5.2 |
| Nov | 27° / 26° | 103 | 15.8 | 11.2 | 5.8 |
| Dec | 26° / 25° | 58 | 13.3 | 11 | 6.6 |
Cloud cover in April
The sky is clear or mostly clear about 64% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 15% of April, with mostly cloudy or overcast conditions the remaining 21%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 84 | 84 | 84 | 83 | 84 | 84 | 84 | 82 | 82 | 81 | 81 | 80 | 79 | 79 | 79 | 78 | 77 | 78 | 78 | 77 | 77 | 77 | 77 | 77 | 77 | 76 | 75 | 75 | 74 | 73 |
| Cloudier (%) | 16 | 16 | 16 | 17 | 16 | 16 | 16 | 18 | 18 | 19 | 19 | 20 | 21 | 21 | 21 | 22 | 23 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 25 | 25 | 26 | 27 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 84 | 16 |
| 2 | 84 | 16 |
| 3 | 84 | 16 |
| 4 | 83 | 17 |
| 5 | 84 | 16 |
| 6 | 84 | 16 |
| 7 | 84 | 16 |
| 8 | 82 | 18 |
| 9 | 82 | 18 |
| 10 | 81 | 19 |
| 11 | 81 | 19 |
| 12 | 80 | 20 |
| 13 | 79 | 21 |
| 14 | 79 | 21 |
| 15 | 79 | 21 |
| 16 | 78 | 22 |
| 17 | 77 | 23 |
| 18 | 78 | 22 |
| 19 | 78 | 22 |
| 20 | 77 | 23 |
| 21 | 77 | 23 |
| 22 | 77 | 23 |
| 23 | 77 | 23 |
| 24 | 77 | 23 |
| 25 | 77 | 23 |
| 26 | 76 | 24 |
| 27 | 75 | 25 |
| 28 | 75 | 25 |
| 29 | 74 | 26 |
| 30 | 73 | 27 |
Chance of precipitation in April
St. John's gets around 33 mm of rain over 8.8 wet days in April. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 31% and peaks near 35% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 29 | 30 | 30 | 31 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 33 | 34 | 35 |
| Rain chance (%) | |
|---|---|
| 1 | 27 |
| 2 | 27 |
| 3 | 27 |
| 4 | 27 |
| 5 | 27 |
| 6 | 28 |
| 7 | 28 |
| 8 | 28 |
| 9 | 29 |
| 10 | 29 |
| 11 | 30 |
| 12 | 30 |
| 13 | 31 |
| 14 | 31 |
| 15 | 31 |
| 16 | 31 |
| 17 | 32 |
| 18 | 32 |
| 19 | 32 |
| 20 | 32 |
| 21 | 32 |
| 22 | 32 |
| 23 | 32 |
| 24 | 32 |
| 25 | 32 |
| 26 | 32 |
| 27 | 33 |
| 28 | 33 |
| 29 | 34 |
| 30 | 35 |
Humidity in April
Most of April feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April lands in the oppressive band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Humid (%) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Muggy (%) | 47 | 46 | 44 | 43 | 42 | 41 | 40 | 39 | 38 | 37 | 36 | 36 | 35 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 27 | 26 | 24 | 23 | 21 | 20 | 18 | 17 | 16 | 15 |
| Oppressive (%) | 49 | 50 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 62 | 63 | 65 | 67 | 68 | 69 | 70 | 72 | 73 | 75 | 77 | 79 | 80 | 82 | 83 | 84 | 85 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|
| 1 | 0 | 3 | 47 | 49 |
| 2 | 1 | 3 | 46 | 50 |
| 3 | 1 | 3 | 44 | 52 |
| 4 | 1 | 3 | 43 | 53 |
| 5 | 1 | 3 | 42 | 54 |
| 6 | 1 | 3 | 41 | 55 |
| 7 | 1 | 3 | 40 | 56 |
| 8 | 1 | 3 | 39 | 57 |
| 9 | 1 | 3 | 38 | 58 |
| 10 | 1 | 3 | 37 | 59 |
| 11 | 1 | 3 | 36 | 60 |
| 12 | 1 | 2 | 36 | 61 |
| 13 | 1 | 2 | 35 | 62 |
| 14 | 1 | 2 | 35 | 62 |
| 15 | 1 | 2 | 34 | 63 |
| 16 | 0 | 2 | 33 | 65 |
| 17 | 0 | 1 | 32 | 67 |
| 18 | 0 | 1 | 31 | 68 |
| 19 | 0 | 1 | 30 | 69 |
| 20 | 0 | 1 | 29 | 70 |
| 21 | 0 | 1 | 27 | 72 |
| 22 | 0 | 1 | 26 | 73 |
| 23 | 0 | 1 | 24 | 75 |
| 24 | 0 | 0 | 23 | 77 |
| 25 | 0 | 0 | 21 | 79 |
| 26 | 0 | 0 | 20 | 80 |
| 27 | 0 | 0 | 18 | 82 |
| 28 | 0 | 0 | 17 | 83 |
| 29 | 0 | 0 | 16 | 84 |
| 30 | 0 | 0 | 15 | 85 |
Wind in April
Winds average 24 km/h in April.
Across April, daily wind ranges from about 24 km/h on the calmest days to 25 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 24 | breezy |
| 2 | 24 | breezy |
| 3 | 24 | breezy |
| 4 | 24 | breezy |
| 5 | 24 | breezy |
| 6 | 24 | breezy |
| 7 | 24 | breezy |
| 8 | 24 | breezy |
| 9 | 24 | breezy |
| 10 | 24 | breezy |
| 11 | 24 | breezy |
| 12 | 24 | breezy |
| 13 | 24 | breezy |
| 14 | 24 | breezy |
| 15 | 24 | breezy |
| 16 | 24 | breezy |
| 17 | 24 | breezy |
| 18 | 24 | breezy |
| 19 | 24 | breezy |
| 20 | 24 | breezy |
| 21 | 24 | breezy |
| 22 | 24 | breezy |
| 23 | 25 | breezy |
| 24 | 25 | breezy |
| 25 | 25 | breezy |
| 26 | 25 | breezy |
| 27 | 25 | breezy |
| 28 | 25 | breezy |
| 29 | 25 | breezy |
| 30 | 25 | breezy |
Sunrise & sunset in April
Daylight runs from about 12 h 06 min at the start of April to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 30 minutes over April. Sunrise moves from 6:08 AM to 5:47 AM, and sunset from 6:16 PM to 6:23 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.1 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.6 | 12.6 | 12.6 | 12.6 |
| Sunrise (AM) | 6:08 | 6:07 | 6:06 | 6:05 | 6:04 | 6:04 | 6:03 | 6:02 | 6:01 | 6:01 | 6:00 | 5:59 | 5:58 | 5:57 | 5:57 | 5:56 | 5:55 | 5:55 | 5:54 | 5:53 | 5:52 | 5:52 | 5:51 | 5:51 | 5:50 | 5:49 | 5:49 | 5:48 | 5:47 | 5:47 |
| Sunset (PM) | 6:16 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:18 | 6:18 | 6:18 | 6:18 | 6:18 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:20 | 6:20 | 6:20 | 6:20 | 6:21 | 6:21 | 6:21 | 6:21 | 6:22 | 6:22 | 6:22 | 6:22 | 6:23 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.1 | 6:08 | 6:16 |
| 2 | 12.2 | 6:07 | 6:17 |
| 3 | 12.2 | 6:06 | 6:17 |
| 4 | 12.2 | 6:05 | 6:17 |
| 5 | 12.2 | 6:04 | 6:17 |
| 6 | 12.2 | 6:04 | 6:17 |
| 7 | 12.2 | 6:03 | 6:17 |
| 8 | 12.3 | 6:02 | 6:18 |
| 9 | 12.3 | 6:01 | 6:18 |
| 10 | 12.3 | 6:01 | 6:18 |
| 11 | 12.3 | 6:00 | 6:18 |
| 12 | 12.3 | 5:59 | 6:18 |
| 13 | 12.3 | 5:58 | 6:19 |
| 14 | 12.4 | 5:57 | 6:19 |
| 15 | 12.4 | 5:57 | 6:19 |
| 16 | 12.4 | 5:56 | 6:19 |
| 17 | 12.4 | 5:55 | 6:19 |
| 18 | 12.4 | 5:55 | 6:20 |
| 19 | 12.4 | 5:54 | 6:20 |
| 20 | 12.4 | 5:53 | 6:20 |
| 21 | 12.5 | 5:52 | 6:20 |
| 22 | 12.5 | 5:52 | 6:21 |
| 23 | 12.5 | 5:51 | 6:21 |
| 24 | 12.5 | 5:51 | 6:21 |
| 25 | 12.5 | 5:50 | 6:21 |
| 26 | 12.5 | 5:49 | 6:22 |
| 27 | 12.6 | 5:49 | 6:22 |
| 28 | 12.6 | 5:48 | 6:22 |
| 29 | 12.6 | 5:47 | 6:22 |
| 30 | 12.6 | 5:47 | 6:23 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 6.7 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 4.61 kWh/m² to a high of 6.7 kWh/m² in April across the year — April's 6.7 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.6 | Intense |
| 2 | 6.6 | Intense |
| 3 | 6.6 | Intense |
| 4 | 6.6 | Intense |
| 5 | 6.6 | Intense |
| 6 | 6.6 | Intense |
| 7 | 6.6 | Intense |
| 8 | 6.6 | Intense |
| 9 | 6.6 | Intense |
| 10 | 6.6 | Intense |
| 11 | 6.6 | Intense |
| 12 | 6.7 | Intense |
| 13 | 6.7 | Intense |
| 14 | 6.7 | Intense |
| 15 | 6.7 | Intense |
| 16 | 6.7 | Intense |
| 17 | 6.7 | Intense |
| 18 | 6.7 | Intense |
| 19 | 6.7 | Intense |
| 20 | 6.7 | Intense |
| 21 | 6.7 | Intense |
| 22 | 6.7 | Intense |
| 23 | 6.7 | Intense |
| 24 | 6.7 | Intense |
| 25 | 6.7 | Intense |
| 26 | 6.7 | Intense |
| 27 | 6.7 | Intense |
| 28 | 6.7 | Intense |
| 29 | 6.7 | Intense |
| 30 | 6.7 | Intense |
Hazard calendar for St. John's
None of St. John's's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
St. John's sits in the Atlantic hurricane belt; the season peaks August–October.
St. John's's rainy season runs July–November, when most of the year's rain falls.
St. John's sees seasonal dust haze (July), heaviest in July.
Is April a good time to visit St. John's?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is one of the better times to visit St. John's for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for St. John's in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, St. John's sees daytime highs around 26°C and nights near 25°C. Pack sun protection. Worth having: light clothes, rain gear and a windbreaker. About 9 days see rain.
Sea temperature near St. John's in April
The nearest coast averages about 27°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in September at about 29°C and coldest in February near 26°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 26 | Warm |
| Mar | 26 | Warm |
| Apr | 27 | Warm |
| May | 27 | Warm |
| Jun | 28 | Warm |
| Jul | 28 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 27 | Warm |
UV index in St. John's in April
Clear-sky midday UV in April peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in St. John's peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 8 | 11 | 13 | 13 | 12 | 12 | 12 | 11 | 12 | 10 | 8 | 7 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 7 | Very high |
Air quality in St. John's in April
Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.
Air quality in St. John's is worst in July — around 24 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (December, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 10 | 9 | 11 | 14 | 24 | 24 | 20 | 16 | 17 | 11 | 8 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 10 | Good |
| Mar | 9 | Good |
| Apr | 11 | Good |
| May | 14 | Moderate |
| Jun | 24 | Moderate |
| Jul | 24 | Moderate |
| Aug | 20 | Moderate |
| Sep | 16 | Moderate |
| Oct | 17 | Moderate |
| Nov | 11 | Good |
| Dec | 8 | Good |
Where is St. John's?
St. John's sits at 17.1°N, 61.8°W, 12 m above sea level, in Antigua and Barbuda. The nearest listed city is Falmouth, 12 km away.
Topography around St. John's
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of St. John's.
Within 3 km, the terrain around St. John's has only modest variations in elevation — a maximum elevation change of 109 m around an average of 20 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 391 m; within 80 km, large variations in elevation — a maximum elevation change of 1,011 m.
The land around St. John's is covered by artificial surfaces (35%) and trees (31%) within 3 km, water (69%) within 16 km, and water (96%) within 80 km.
Antigua and Barbuda travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 230 V · 60 Hz
- Prices
- ≈ 69% of US
- price level, 2025
- GDP per capita
- $24,819
- 2025
- Homicide rate
- 10.7
- per 100k, 2023
- Road deaths
- 0
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for St. John's (17.121°, -61.8433°, elevation 12 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).