Sliema climate
Sliema’s mild temperatures come with sun, humidity, and high allergies
Sliema’s published climate rows show an average summer high around 81°F, 0 days above 90°F in the source model, a winter low around 58°F, 0 days below freezing, and nine comfortable months. January through June, October, November, and December are listed as the best months, while July and August are the toughest.
Humidity is 76 percent, allergy levels are High, heat risk is Low, drought risk is Medium at 0.4 to 0.6, and weather volatility is labeled Excellent. The long term fine particle estimate is Good at 9.5 micrograms per cubic metre for the 2021 to 2025 modeled average. The apartment’s windows, shade, ventilation, and access to outdoor space still decide personal comfort.
Living through the seasons
Summer and winter comfort tell a similar story.
- Overall Comfort
- Excellent
4.4 / 5
- Average Summer High
- 81°F
- Days Above 90°F
- 0 days/year
- Summer Feel
- Excellent
Mild · 81°F
Excellent
4.8 / 5
- Average Winter Low
- 58°F / 15°C
- Days Below Freezing
- 0 days/year
- Winter Feel
- Excellent
Excellent
Excellent
4.7 / 5
The shape of the year
Humidity, comfortable months, and sunshine show how the seasons differ.
- Humidity
- 76%
- Comfortable Months
- 9 months
- Solar Exposure
- 1854 peak sun hrs/yr
Very Good
Good
Air, allergies, and weather
Air quality and allergies shape day to day comfort. The best months and weather risks help with timing.
Air and allergies
- Air Quality
- Excellent
- Allergy Levels
- High
4.4 / 5
Poor
Current AQI
Checking…
Current PM2.5
Checking…
Timing and weather
- Long Term Fine Particle Pollution
- 9.5 µg/m³ 2021-2025 modeled average
- Best Months
- Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
- Toughest Months
- Aug, Jul
- Heat Risk
- Low
- Drought Risk
- Medium (0.4-0.6)
- Weather Volatility
- Excellent
Good · 9.5 µg/m³ 2021-2025 modeled average
Very Good
4.5 / 5
Sliema in everyday life
Could Sliema work for you?
What may work well
- The climate rows show an average summer high around 81°F, an average winter low around 58°F, and no modeled freezing days.
- Nine comfortable months and best months across January through June and October through December support a long outdoor calendar.
- The displayed heat risk is Low and the fine particle estimate is Good at 9.5 micrograms per cubic metre for the 2021 to 2025 modeled average.
- The promenade and gardens give a household nearby outdoor places to compare with the actual apartment.
What to think about
- Humidity is 76 percent and allergy levels are High.
- July and August are listed as the toughest months, while sun, drought, and coastal weather still require planning.
- The climate values are summaries or modeled estimates, not a guarantee about one apartment or one day.
- Good modeled fine particle conditions do not remove the need to consider allergies, ventilation, and personal sensitivity.
Plan for Sliema’s humidity and allergies as well as its mild months
Visit in a tougher month
See the apartment in July or August if possible, and compare it with a cooler period. Notice sun, humidity, ventilation, windows, shade, and evening comfort.
Check the indoor experience
Ask about airflow, moisture, heating, cooling, daylight, drying space, window condition, and the cost of keeping rooms comfortable.
Plan outdoor timing
Choose promenade, garden, ferry, and cultural trips around sun, humidity, allergies, traffic, seating, and the energy needed for the return home.
Keep indoor options available
Use the council’s cultural and public information, home based connection, care, and household activities when allergies, drought, rain, or heat change the outdoor plan.
Questions retirees ask
What are Sliema’s typical summer and winter temperatures?
The published climate rows show an average summer high around 81°F and an average winter low around 58°F. The display shows no modeled days above 90°F and no days below freezing, but an apartment’s shade, windows, ventilation, and humidity still matter.
Is Sliema humid?
The displayed humidity is 76 percent. Ask how the apartment handles ventilation, moisture, drying space, windows, sun, and the cost of maintaining indoor comfort.
Which months are most comfortable in Sliema?
The published best months are January through June, October, November, and December. July and August are listed as the toughest, so compare the apartment and daily route beyond a pleasant viewing period.
Does Sliema have high allergy levels?
Yes. The displayed allergy level is High. Pair that label with the Good modeled fine particle estimate of 9.5 micrograms per cubic metre for the 2021 to 2025 average, and consider ventilation and indoor alternatives for your own needs.
What should I ask about climate before renting?
Ask about shade, windows, airflow, humidity, heating, cooling, moisture, drying space, daylight, sun exposure, energy cost, allergies, and the route to outdoor places on a less comfortable day.
Sliema’s mild temperatures and long comfortable season are attractive, but humidity, allergies, sun, drought, and the actual apartment decide how easy the year feels. Visit beyond the ideal season, then use Save, Compare, or Find my fit.
Sources
Climate comfort helps estimate how practical daily life may feel across the year, especially for heat, humidity, cold, and seasonal constraints.
Seasonal timing, health conditions, air conditioning, air quality, and elevation can change the lived experience.
- NASA POWER humidity heuristic
Used for Overall Comfort, Summer Feel, Average Summer High, Days Above 90°F, Winter Feel, Average Winter Low, Days Below Freezing, Humidity, Comfortable Months, Solar Exposure, Best Months, Toughest Months, Heat Risk, Allergy Levels
- Open-Meteo Air Quality + Humidity Heuristic
Used for Air Quality, Long-Term Fine-Particle Pollution, Weather Volatility
Checked 2026-07-10
- World Resources Institute (WRI)
Used for Drought Risk
Checked 2026-07-13
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